Development of Outage Tolerant FSM Model for Fading Channels

Size: px
Start display at page:

Download "Development of Outage Tolerant FSM Model for Fading Channels"

Transcription

1 Development of Outage Tolerant FSM Model for Fading Channels Ms. Anjana Jain 1 P. D. Vyavahare 1 L. D. Arya 2 1 Department of Electronics and Telecomm. Engg., Shri G. S. Institute of Technology and Science, Indore, M.P., India 2 Department of Electrical Engineering, Shri G. S. Institute of Technology and Science, Indore, M.P., India Abstract - Finite State Markov (FSM) models for fading channels need to be revised for more realistic design of emerging mobile networks and their performance evaluation. In this paper a Outage Tolerant FSM Model (OTFSM) is proposed based on concept of certain tolerable outage times, which are defined as Tolerance time. These are the short duration of outage time which is considered as satisfactory times over the channel. In this paper, a statistical approach is being presented for the development of OTFSM model and evaluation of its fading parameters such as Average Fade Duration (AFD), outage probability and outage frequency. Derived results may be used for higher layer performance evaluation and selection of physical layer parameters of wireless networks. Keywords: FSM model, Tolerable outage time, Outage probability, Fading channel, Fade Duration Distribution 1 Introduction Various approaches for characterization of fading radio channels as Finite State Markov (FSM) model have appeared in the literature over last five decades. Initial channel models assumed fading as a Gaussian process and the resultant envelope with Gaussian probability density function (pdf). Mobile wireless channels suffer from multipath propagation and therefore the received signal envelope is approximated according to certain pdf s like Rayleigh, Rican, and Nakagami [1, 2]. For reliable characterization of the fading channels,various approaches were presented to model the channel. Started with the pioneer work of Gilbert and Elliot [3, 4] for two state model of fading channel, the FSM channel models are classified as finite N state and variable state Markov chain model. [5]. Wang and Mayori [6] proposed FSMC model with more than two states based on Signal to Noise Ratio (SNR) partitioning for Rayleigh channel. Binary Symmetric channel (BSC) is associated with each state and transitions with Markov property are assumed between states. It is pointed out that fading speed of the channel decides the SNR and its partitions to specify the states. Deterministic channel modeling and long range prediction of fast fading mobile radio channels has also appeared in [7]. The relationship between a physical channel and its FSM model for bit and packet error probabilities are demonstrated in [8, 9, 10, 11]. Babich demonstrated a technique to improve FSM model description based on Context Tree Pruning (CTP) algorithm [12]. Tan and Beaulieu proposed fading simulation via filtering methods and quantization of resulting process [13]. Further First order Markov chain analysis for short and long time duration of time is examined for the Rayleigh Channel by Chockolingam and Milstein [14]. Bai [15] presented various error modeling schemes for fading channels. Stochastic channel models were used to compute the fading parameters such as Level Crossing Rate (LCR) and Average Fade Duration (AFD) for fading channels [16, 17]. The Fade Duration Distribution (FDD) function and Minimum Duration Outage ( MDO) in Weibull fading channel is described in [18]. Concept of repair time is elaborated in [19]. Reig and Rubio have shown the modeling of Fade Depth and the Fade Margin in UWB Channels applicable to emerging mobile networks [20]. It is revealed from the literature survey that a major contribution to channel characterization studies goes to FSM channel modeling and evaluation of traditional fading statistical parameters such as AFD, outage probability and level crossing rate. These parameters give the insight of mean behavior of the wireless systems. However in recent years mobile systems are emerging as 3G and 4G networks. For such systems the different frequency components contained in the transmitted bandwidth experience different propagation environments and operate at high data rate, ultra high frequency and in a hostile channel environment. Therefore mean behavior is not sufficient and more precise characterization of fading process is needed. Existing FSM models are therefore needed to be reformed with evaluation of additional channel characterization parameters. Apart from the traditional fading parameters outage time distribution is also identified as one of the important parameter for investigation. This paper presents the methodology to develop Outage Tolerant FSM (OTFSM) channel model based on the

2 concept of tolerable outage time. Second-order fading parameters such as AFD (Average duration of outage time), outage probability (probability of being in outage) and outage frequency (number of times received signal crosses the threshold level and experience outage) are derived for proposed model. The proposed model considers the discrete value of the observation time of the channel. The concept is applied to Rayleigh and Nakagami channel with the variation in parameters like Doppler spread and fade margin. Paper is organized as follows. Section II presents formulation of tolerance time. Development of OTFSM model is discussed in section III. Fading parameters of the OTFSM model are derived in section IV with results and discussions in section V. Paper is concluded in section VI. 2 Formulation of tolerance time 3G and 4G wireless communication systems are supposed to offer variety of services such as voice, data, image transmission and internet browsing at high data rate in a relatively severe fading environment. The paper proposes a new FSM channel model as Outage Tolerant FSM (OTFSM) model while introducing tolerance time as a new statistical fading parameter. In the proposed model the fading channel is described by discrete time and discrete amplitude Markov chain, X (n) with sample space S 1 = {1 k} (1) S 2 = {k + 1 N} (2) Subset S 1 consists of outage states and subset S 2 consists of satisfactory states. X (n) can be represented as sampled PSD of the channel with the sampling period denoted as slot duration t. A threshold value of received signal PSD is selected to decide the state of Markov process. When received signal during slot duration is more than the specified threshold, state of the process belongs to subset S 2, otherwise in subset S 1. The finite number of slot durations which are in outage and are tolerated by the channel with acceptable with acceptable Packet Error Rate (PER) target, is defined as the tolerable error event length and the time duration is denoted as tolerance time. In OTFSM model discrete time approach is proposed for the tolerance time and outage is considered when the received signal strength stays below the threshold value longer than tolerance time. Based on the concept, OTFSM model considers the states which are in tolerable outages as satisfactory states rather than outage states. OTFSM channel model is developed in this section with its state diagram, steady state probabilities of being in satisfactory, outage and tolerant states and fading parameters. It is proposed that channel may tolerate maximum duration of time denoted as t tol which is equal discrete number of time slot τ. Fading parameters for OTFSM channel model are denoted as p out(outage probability ), (Average outage time) and f out (Frequency of outage). The choice of tolerance time depends on the past outage statistics, error correction time and acceptable PER. Tolerance time may be considered as a non-negative continuous random variable with certain distribution functions like Beta or Exponential [18]. The range of tolerance time τ is selected from τ 1 to τ 2 with τ 1 < τ < τ 2 and tolerance time is considered as continuous variable. If τ = 0, The OTFSM model is the same as the original model τ =, The OTFSM model will never be in fading state. 3 Development of outage tolerant FSM Channel model In the proposed that in the OTFSM model short tolerable outages are considered as tolerant state along with satisfactory and outage state. States 1 to N- k are considered as outage states. States N- k+ 1 to N- k + m is considered as satisfactory states and state N k + m +1 to N are considered as tolerant states. Figure one shows the plot for channel state versus time for OTFSM model. The model can be represented by three states. Figure 1- The timing diagram of proposed OTFSM model O - Outage state, represented by subset S1 S - Satisfactory state, represented by subset S2 T- Tolerant state, represented by subset 3 S T O Figure 2- State diagram of OTFSM model with satisfactory outage and tolerate state State diagram shows the probability of transition from satisfactory state to tolerant state p st and from tolerant state

3 to satisfactory state is p ts is assumed to be nonzero. Probability of transition from satisfactory state to outage state p so is nonzero however probability of transition from an outage to tolerant state p ot is assumed to be zero. Channel is modeled as OTFSM where during tolerance time channel is supposed to be nonfading state as described above and made available to user. Model is based on following assumptions - i. This is a Markov model of fading channel subject to multiple outages. ii. The duration between the satisfactory instant and occurrence of an outage event is the satisfactory time and the time for the channel being in outage is random variable. iii. Figure two is the state diagram of this model. iv. Tolerant and outage state cannot occur at the same time. The state space of the fading process of OTFSM model is given as S 1 = {1, N- k} (3) S 2 = {N - k + 1, {N- k + m } (4) S 3 = {N k + m +1, -----N} (5) The one step transition probability matrix of the model is defined as For the proposed model and are assumed to be zero. The one step probability matrix for the OTFSM model can be represented as follows (6) (17) (18) Substituting above equations in equation (9) and equation (10), steady state probabilities would be same as two state model, shown as below (19) 4 Estimation of fading parameters (20) For OTFSM model outage is considered when channel is in satisfactory state at time zero followed by n t slots of outage state, equal to tolerance time, t tol. AFD can be rewritten as below [17] P B (I - P B ) -1 (21) P B (22) ( I - P B ) (23) (I - P B ) -1 (24) (7) Error probability matrix, P B, in which all entries of being in satisfactory state is set to zero, is given as Steady state probability can be shown as (9) (10) (11) 1 (12) As and are assumed to be zero, solving the equations for steady state probabilities (13) (8) (14) (15) For existing model tolerant states are considered as outage states, therefore (16) P B (I - P B ) -1 Substituting in equation (21), AFD of OTFSM would be Frequency of outage f out is given as [16] (25) (26) (27) (P B k-1 P) e B (28) For OTFSM model ) and e B = are considered and hence equation (28) can be rewritten as p out can be given as ) (29) = Frequency of outage. AFD (30) Result are in agreement with the earler results for two stage FSM model [16]. Probabilities of being in any of the states

4 can be computed either using simulation using MATLAB or mathematically for different values of Doppler shift and fade margin. The work can be extended for continuous and arbitrary distributed tolerance time [19] tol1 tol2 tol3 5 Results and discussions Observations were made for estimating AFD of OTFSM model. Further AFD of the proposed model is evaluated for the different values of one step transition probability. It has been demonstrated that AFD is the continuous increasing function of tolerance time. With tolerance time AFD decreases almost by ten percent as the value of ρ changes from one to two, as demonstrated in figure 3. Similarly, figure 4 demonstrates that the fading rate has an large impact on AFD. When fading rate is low i.e. low value of Doppler spread results in large value of AFD. The channel is likely to stay for larger time in the state once it crosses the threshold. Twenty percent fall in AFD results with the decrease in the Doppler spread from 120 Hz to 60 Hz. AFD of OTFSM model Fade depth = 0 db Fade depth=20 db tol time Figure 3: Variation in AFD of OTFSM with Tolerance time with various fade depth AFD of OTFSM M odel Doppler spread = 20 Hz Doppler spread = 60 Hz fdoppler spread =120 Hz tol time Figure 4: Variation in AFD of OTFSM with tolerance time for various Doppler spread in Hz. Frequency of outage Doppler spread Figure 5: Variation in frequency of outage with Doppler frequency with tol1 < tol2 < tol3 Figure 5 shows the variations in frequency of outage with Doppler frequency with tol1 < tol2 < tol3. There is a slow change in frequency of outage with large value of tolerance time. 6 Conclusion The paper presents the development of Outage Tolerant Finite State Markov model, which is based on the concept of tolerable outage time. Various fading parameters of the channel such as AFD, outage probability and outage frequency are evaluate and their behavior is studied using proposed OTFSM model. Simulation of the proposed model is carried out and the results are validated with the earlier literature. Channel can be made available to the user under the tolerable outage times and hence will result in higher spectral efficiency. Presented work may be extended for relaying fading channels and descrete sampled fading channels of emerging mobile networks [21]. Results may be used for higher layer Protocol performance evaluation and physical layer parameters selection of wireless networks. 7 References [1] Rappport T. S., Wireless Communication, Pearson Education, Second Edition, [2] Goldsmith A., Wireless Communication, Cambridge Press, [3] Gilbert E., Capacity of a burst-noise channel, Bell System Technical Journal, vol. 39, pp , Sept [4] Elliott E. O., Estimates of error rates for codes on burst-error channels, Bell System Technical Journal, vol. 42, pp , September [5] Aulin T., A modified Markov Model for the fading signal at a mobile radio channel, IEEE Transactions on

5 Vehicular Technology, vol.28, no. 3, pp , August [6] Wang H.S. and Mouyeri N, Finite State Markov Channel- A useful model for radio communication channels, IEEE Transactions of Vehicular Technology, vol. 44, no. 1, pp , Feb [7] Eyceoz T., Hallen A., and Hallen H., Deterministic channel modeling and long range prediction of fast fading mobile radio channels, IEEE Communication Letter, vol. 2, no. 9, pp , Sept [8] Wang H.S. and Chang P.C., On Verifying the First Order Markovian Assumption for a Rayleigh Fading Channel Model, IEEE Transactions on Vehicular Technology, vol. 45, no. 2, pp , May [9] Ross S. M., Introduction to Probability Models, Elsevier Publication, IX edition, [10] Michele Zorzi, On the Statistics of Block Errors in Bursty Channel, IEEE Transactions on Communication, vol. 45, no.6, pp , June1997. [11] Zhang Q. and Kassam S. A., Finite State Markov Model for Rayleigh Fading Channels, IEEE Transactions on Communication, vol. 47, no. 11, pp , Nov [12] Babich F., Kelly O. E, Lombardi G, Generalized Markov Modeling for Flat Fading, IEEE Transactions on Communication, vol. 48, no.4, pp , April [13] Tan C.C and Beaulieu N.C, On First Order Markov Modeling for Rayleigh Fading Channel, IEEE Transactions on Communication, vol. 48, no. 12, pp , Dec [14] Ramesh A. Chockolingam, and Laurence B. Milstein, SNR Estimation in Macadam-m Fading With Diversity Combining and Its Application to Turbo Decoding, IEEE Transactions on Communication, vol. 50, no. 11, pp , Nov [15] Bai H and Atiquzzaman M., Error modeling schemes for fading channel in Wireless Communication A Survey, IEEE Electronics Magazine on Communication, vol. 5, no.2, pp. 2-8, Fourth Quarter [16] Zorzi M., Minimum duration outage in Markov channel, IEEE Transactions on Communication, vol. 54, no. 6, pp , [17] Beaulieu N. C. and Dong X., Level Crossing Rate & Average Fade Duration of MRC (maximum ratio combiner) and EGC (Equal gain combiner) Diversity in Rician Fading, IEEE Transactions on Communication, vol. 51, no. 5, pp , May [18] Wang Miao Liu et al., Fade Duration Distribution and Minimum Duration Outage in Weibull Fading Channels, Vehicular Technology Conference, [19] Zheng Z. Cui L., and Hawakes A. G., A Study on a Single-Unit Markov Repairable System with Repair Time Omission, IEEE Transactions on Reliability, vol. 55, no.2, pp , June [20] Lano G. Reig and J. Rubio L., Analytical Approach to Model the Fade Depth and the Fade Margin in UWB Channels, IEEE Transactions on Vehicular Technology, vol. 59, no. 9, pp , [21] Javier L Martinez F. et al., Higher order statistics of sampled fading channels with applications, IEEE Transactions of Vehicular Technology, vol. 61, no. 7, pp , Sept

A SURVEY OF FADING MODELS FOR MOBILE RADIO CHANNEL CHARACTERIZATION Anjana Jain P. D. Vyavahare L. D. Arya

A SURVEY OF FADING MODELS FOR MOBILE RADIO CHANNEL CHARACTERIZATION Anjana Jain P. D. Vyavahare L. D. Arya A SURVEY OF FADING MODELS FOR MOBILE RADIO CHANNEL CHARACTERIZATION Anjana Jain P. D. Vyavahare L. D. Arya Abstract - Future 3G and 4G mobile communication systems will be required to support wide range

More information

Discrete Rayleigh Fading Channel Modeling

Discrete Rayleigh Fading Channel Modeling Discrete Rayleigh Fading Channel Modeling Julio Aráuz jarauz@mail.sis.pitt.edu March 22 Department of Information Sciences and Telecommunications University of Pittsburgh 35 N. Bellefield Ave. Pittsburgh

More information

ECE416 Progress Report A software-controlled fading channel simulator

ECE416 Progress Report A software-controlled fading channel simulator ECE416 Progress Report A software-controlled fading channel simulator Chris Snow 006731830 Faculty Advisor: Dr. S. Primak Electrical/Computer Engineering Project Report (ECE 416) submitted in partial fulfillment

More information

SNR Estimation in Nakagami-m Fading With Diversity Combining and Its Application to Turbo Decoding

SNR Estimation in Nakagami-m Fading With Diversity Combining and Its Application to Turbo Decoding IEEE TRANSACTIONS ON COMMUNICATIONS, VOL. 50, NO. 11, NOVEMBER 2002 1719 SNR Estimation in Nakagami-m Fading With Diversity Combining Its Application to Turbo Decoding A. Ramesh, A. Chockalingam, Laurence

More information

On Using Channel Prediction in Adaptive Beamforming Systems

On Using Channel Prediction in Adaptive Beamforming Systems On Using Channel rediction in Adaptive Beamforming Systems T. R. Ramya and Srikrishna Bhashyam Department of Electrical Engineering, Indian Institute of Technology Madras, Chennai - 600 036, India. Email:

More information

Performance Evaluation of ½ Rate Convolution Coding with Different Modulation Techniques for DS-CDMA System over Rician Channel

Performance Evaluation of ½ Rate Convolution Coding with Different Modulation Techniques for DS-CDMA System over Rician Channel Performance Evaluation of ½ Rate Convolution Coding with Different Modulation Techniques for DS-CDMA System over Rician Channel Dilip Mandloi PG Scholar Department of ECE, IES, IPS Academy, Indore [India]

More information

IN A typical mobile communication channel, the transmitted

IN A typical mobile communication channel, the transmitted IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, VOL. 53, NO. 5, SEPTEMBER 2004 1491 Finite-State Markov Modeling of Correlated Rician-Fading Channels Cecilio Pimentel, Member, IEEE, Tiago H. Falk, Student Member,

More information

Analytical Evaluation of MDPSK and MPSK Modulation Techniques over Nakagami Fading Channels

Analytical Evaluation of MDPSK and MPSK Modulation Techniques over Nakagami Fading Channels Analytical Evaluation of MDPSK and MPSK Modulation Techniques over Nakagami Fading Channels Alam S. M. Shamsul 1, Kwon GooRak 2, and Choi GoangSeog 3 Department of Information and Communication Engineering,

More information

MARKOV CHANNEL MODELING. Julio Nicolás Aráuz Salazar. Electronics and Telecommunications Engineering, E.P.N Quito - Ecuador, 1996

MARKOV CHANNEL MODELING. Julio Nicolás Aráuz Salazar. Electronics and Telecommunications Engineering, E.P.N Quito - Ecuador, 1996 82. MARKOV CHANNEL MODELING by Julio Nicolás Aráuz Salazar Electronics and Telecommunications Engineering, E.P.N Quito - Ecuador, 996 MST, University of Pittsburgh, 2 Submitted to the Graduate Faculty

More information

Discrete Rayleigh fading channel modeling

Discrete Rayleigh fading channel modeling WIRELESS COMMUNICATIONS AND MOBILE COMPUTING Wirel. Commun. Mob. Comput. 2004; 4:413 425 (DOI: 10.1002/wcm.185) Discrete Rayleigh fading channel modeling Julio Aráuz 1, *,y, Prashant Krishnamurthy 1 and

More information

PERFORMANCE ANALYSIS OF DIFFERENT M-ARY MODULATION TECHNIQUES IN FADING CHANNELS USING DIFFERENT DIVERSITY

PERFORMANCE ANALYSIS OF DIFFERENT M-ARY MODULATION TECHNIQUES IN FADING CHANNELS USING DIFFERENT DIVERSITY PERFORMANCE ANALYSIS OF DIFFERENT M-ARY MODULATION TECHNIQUES IN FADING CHANNELS USING DIFFERENT DIVERSITY 1 MOHAMMAD RIAZ AHMED, 1 MD.RUMEN AHMED, 1 MD.RUHUL AMIN ROBIN, 1 MD.ASADUZZAMAN, 2 MD.MAHBUB

More information

Effect of Time Bandwidth Product on Cooperative Communication

Effect of Time Bandwidth Product on Cooperative Communication Surendra Kumar Singh & Rekha Gupta Department of Electronics and communication Engineering, MITS Gwalior E-mail : surendra886@gmail.com, rekha652003@yahoo.com Abstract Cognitive radios are proposed to

More information

THE Nakagami- fading channel model [1] is one of the

THE Nakagami- fading channel model [1] is one of the 24 IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, VOL. 4, NO. 1, JANUARY 2005 On the Crossing Statistics of Phase Processes and Random FM Noise in Nakagami-q Mobile Fading Channels Neji Youssef, Member,

More information

International Journal of Advance Engineering and Research Development. Performance Comparison of Rayleigh and Rician Fading Channel Models: A Review

International Journal of Advance Engineering and Research Development. Performance Comparison of Rayleigh and Rician Fading Channel Models: A Review Scientific Journal of Impact Factor (SJIF): 5.71 International Journal of Advance Engineering and Research Development Volume 5, Issue 02, February -2018 e-issn (O): 2348-4470 p-issn (P): 2348-6406 Performance

More information

Chapter 2 Channel Equalization

Chapter 2 Channel Equalization Chapter 2 Channel Equalization 2.1 Introduction In wireless communication systems signal experiences distortion due to fading [17]. As signal propagates, it follows multiple paths between transmitter and

More information

Analysis of Fast Fading in Wireless Communication Channels M.Siva Ganga Prasad 1, P.Siddaiah 1, L.Pratap Reddy 2, K.Lekha 1

Analysis of Fast Fading in Wireless Communication Channels M.Siva Ganga Prasad 1, P.Siddaiah 1, L.Pratap Reddy 2, K.Lekha 1 International Journal of ISSN 0974-2107 Systems and Technologies IJST Vol.3, No.1, pp 139-145 KLEF 2010 Fading in Wireless Communication Channels M.Siva Ganga Prasad 1, P.Siddaiah 1, L.Pratap Reddy 2,

More information

PERFORMANCE of predetection equal gain combining

PERFORMANCE of predetection equal gain combining 1252 IEEE TRANSACTIONS ON COMMUNICATIONS, VOL. 53, NO. 8, AUGUST 2005 Performance Analysis of Predetection EGC in Exponentially Correlated Nakagami-m Fading Channel P. R. Sahu, Student Member, IEEE, and

More information

Exam 3 is two weeks from today. Today s is the final lecture that will be included on the exam.

Exam 3 is two weeks from today. Today s is the final lecture that will be included on the exam. ECE 5325/6325: Wireless Communication Systems Lecture Notes, Spring 2010 Lecture 19 Today: (1) Diversity Exam 3 is two weeks from today. Today s is the final lecture that will be included on the exam.

More information

Optimal Rate Control in Wireless Networks with Fading Channels

Optimal Rate Control in Wireless Networks with Fading Channels Optimal Rate Control in Wireless Networks with Fading Channels Javad Raxavilar,' K. J. Ray L~u,~ and Steven I. Marcus2 '3COM Labs, 3COM Inc. 12230 World Trade Drive San Diego, CA 92128 javadrazavilar@3com.com

More information

Carrier Frequency Offset Estimation in WCDMA Systems Using a Modified FFT-Based Algorithm

Carrier Frequency Offset Estimation in WCDMA Systems Using a Modified FFT-Based Algorithm Carrier Frequency Offset Estimation in WCDMA Systems Using a Modified FFT-Based Algorithm Seare H. Rezenom and Anthony D. Broadhurst, Member, IEEE Abstract-- Wideband Code Division Multiple Access (WCDMA)

More information

Study of Turbo Coded OFDM over Fading Channel

Study of Turbo Coded OFDM over Fading Channel International Journal of Engineering Research and Development e-issn: 2278-067X, p-issn: 2278-800X, www.ijerd.com Volume 3, Issue 2 (August 2012), PP. 54-58 Study of Turbo Coded OFDM over Fading Channel

More information

Opportunistic Communications under Energy & Delay Constraints

Opportunistic Communications under Energy & Delay Constraints Opportunistic Communications under Energy & Delay Constraints Narayan Mandayam (joint work with Henry Wang) Opportunistic Communications Wireless Data on the Move Intermittent Connectivity Opportunities

More information

TURBOCODING PERFORMANCES ON FADING CHANNELS

TURBOCODING PERFORMANCES ON FADING CHANNELS TURBOCODING PERFORMANCES ON FADING CHANNELS Ioana Marcu, Simona Halunga, Octavian Fratu Telecommunications Dept. Electronics, Telecomm. & Information Theory Faculty, Bd. Iuliu Maniu 1-3, 061071, Bucharest

More information

Performance Analysis of Combining Techniques Used In MIMO Wireless Communication System Using MATLAB

Performance Analysis of Combining Techniques Used In MIMO Wireless Communication System Using MATLAB International Association of Scientific Innovation and Research (IASIR) (An Association Unifying the Sciences, Engineering, and Applied Research) International Journal of Emerging Technologies in Computational

More information

Effect of Buffer Placement on Performance When Communicating Over a Rate-Variable Channel

Effect of Buffer Placement on Performance When Communicating Over a Rate-Variable Channel 29 Fourth International Conference on Systems and Networks Communications Effect of Buffer Placement on Performance When Communicating Over a Rate-Variable Channel Ajmal Muhammad, Peter Johansson, Robert

More information

ON THE IMPORTANCE OF ERROR MEMORY IN UMTS RADIO CHANNEL EMULATION USING HIDDEN MARKOV MODELS (HMM)

ON THE IMPORTANCE OF ERROR MEMORY IN UMTS RADIO CHANNEL EMULATION USING HIDDEN MARKOV MODELS (HMM) O THE IMPORTACE OF ERROR MEMORY I UMTS RADIO CHAEL EMULATIO USIG HIDDE MARKOV MODELS (HMM) Anna Umbert, Pilar Díaz Universitat Politècnica de Catalunya, C/Jordi Girona 1-3, 83 Barcelona, Spain, [annau,pilar]@tsc.upc.es

More information

Energy Detection Spectrum Sensing Technique in Cognitive Radio over Fading Channels Models

Energy Detection Spectrum Sensing Technique in Cognitive Radio over Fading Channels Models Energy Detection Spectrum Sensing Technique in Cognitive Radio over Fading Channels Models Kandunuri Kalyani, MTech G. Narayanamma Institute of Technology and Science, Hyderabad Y. Rakesh Kumar, Asst.

More information

Performance Analysis of Equalizer Techniques for Modulated Signals

Performance Analysis of Equalizer Techniques for Modulated Signals Vol. 3, Issue 4, Jul-Aug 213, pp.1191-1195 Performance Analysis of Equalizer Techniques for Modulated Signals Gunjan Verma, Prof. Jaspal Bagga (M.E in VLSI, SSGI University, Bhilai (C.G). Associate Professor

More information

Optimum Power Allocation in Cooperative Networks

Optimum Power Allocation in Cooperative Networks Optimum Power Allocation in Cooperative Networks Jaime Adeane, Miguel R.D. Rodrigues, and Ian J. Wassell Laboratory for Communication Engineering Department of Engineering University of Cambridge 5 JJ

More information

Downlink Erlang Capacity of Cellular OFDMA

Downlink Erlang Capacity of Cellular OFDMA Downlink Erlang Capacity of Cellular OFDMA Gauri Joshi, Harshad Maral, Abhay Karandikar Department of Electrical Engineering Indian Institute of Technology Bombay Powai, Mumbai, India 400076. Email: gaurijoshi@iitb.ac.in,

More information

Design of DFE Based MIMO Communication System for Mobile Moving with High Velocity

Design of DFE Based MIMO Communication System for Mobile Moving with High Velocity Design of DFE Based MIMO Communication System for Mobile Moving with High Velocity S.Bandopadhaya 1, L.P. Mishra, D.Swain 3, Mihir N.Mohanty 4* 1,3 Dept of Electronics & Telecomunicationt,Silicon Institute

More information

Bit Error Rate Assessment of Digital Modulation Schemes on Additive White Gaussian Noise, Line of Sight and Non Line of Sight Fading Channels

Bit Error Rate Assessment of Digital Modulation Schemes on Additive White Gaussian Noise, Line of Sight and Non Line of Sight Fading Channels International Journal of Engineering Science Invention ISSN (Online): 2319 6734, ISSN (Print): 2319 6726 Volume 3 Issue 8 ǁ August 2014 ǁ PP.06-10 Bit Error Rate Assessment of Digital Modulation Schemes

More information

Throughput Performance of an Adaptive ARQ Scheme in Rayleigh Fading Channels

Throughput Performance of an Adaptive ARQ Scheme in Rayleigh Fading Channels Southern Illinois University Carbondale OpenSIUC Articles Department of Electrical and Computer Engineering -26 Throughput Performance of an Adaptive ARQ Scheme in Rayleigh Fading Channels A. Mehta Southern

More information

ISSN (Print) DOI: /sjet Original Research Article. *Corresponding author Rosni Sayed

ISSN (Print) DOI: /sjet Original Research Article. *Corresponding author Rosni Sayed DOI: 10.21276/sjet.2016.4.10.4 Scholars Journal of Engineering and Technology (SJET) Sch. J. Eng. Tech., 2016; 4(10):489-499 Scholars Academic and Scientific Publisher (An International Publisher for Academic

More information

Combined Rate and Power Adaptation in DS/CDMA Communications over Nakagami Fading Channels

Combined Rate and Power Adaptation in DS/CDMA Communications over Nakagami Fading Channels 162 IEEE TRANSACTIONS ON COMMUNICATIONS, VOL. 48, NO. 1, JANUARY 2000 Combined Rate Power Adaptation in DS/CDMA Communications over Nakagami Fading Channels Sang Wu Kim, Senior Member, IEEE, Ye Hoon Lee,

More information

Threshold-based Adaptive Decode-Amplify-Forward Relaying Protocol for Cooperative Systems

Threshold-based Adaptive Decode-Amplify-Forward Relaying Protocol for Cooperative Systems Threshold-based Adaptive Decode-Amplify-Forward Relaying Protocol for Cooperative Systems Safwen Bouanen Departement of Computer Science, Université du Québec à Montréal Montréal, Québec, Canada bouanen.safouen@gmail.com

More information

Performance Evaluation of BPSK modulation Based Spectrum Sensing over Wireless Fading Channels in Cognitive Radio

Performance Evaluation of BPSK modulation Based Spectrum Sensing over Wireless Fading Channels in Cognitive Radio IOSR Journal of Electronics and Communication Engineering (IOSR-JECE) e-issn: 2278-2834,p- ISSN: 2278-8735.Volume 9, Issue 6, Ver. IV (Nov - Dec. 2014), PP 24-28 Performance Evaluation of BPSK modulation

More information

Performance Evaluation of a UWB Channel Model with Antipodal, Orthogonal and DPSK Modulation Scheme

Performance Evaluation of a UWB Channel Model with Antipodal, Orthogonal and DPSK Modulation Scheme International Journal of Wired and Wireless Communications Vol 4, Issue April 016 Performance Evaluation of 80.15.3a UWB Channel Model with Antipodal, Orthogonal and DPSK Modulation Scheme Sachin Taran

More information

DIVERSITY combining is one of the most practical, effective

DIVERSITY combining is one of the most practical, effective IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, VOL. 4, NO. 3, MAY 2005 841 Equal-Gain and Maximal-Ratio Combining Over Nonidentical Weibull Fading Channels George K. Karagiannidis, Senior Member, IEEE,

More information

Performance Improvement of Wireless Communications Using Frequency Hopping Spread Spectrum

Performance Improvement of Wireless Communications Using Frequency Hopping Spread Spectrum Int. J. Communications, Network and System Sciences, 010, 3, 805-810 doi:10.436/ijcns.010.310108 Published Online October 010 (http://www.scirp.org/journal/ijcns) Performance Improvement of Wireless Communications

More information

Performance Evaluation of OFDM System with Rayleigh, Rician and AWGN Channels

Performance Evaluation of OFDM System with Rayleigh, Rician and AWGN Channels Performance Evaluation of OFDM System with Rayleigh, Rician and AWGN Channels Abstract A Orthogonal Frequency Division Multiplexing (OFDM) scheme offers high spectral efficiency and better resistance to

More information

Neha Pathak #1, Neha Bakawale *2 # Department of Electronics and Communication, Patel Group of Institution, Indore

Neha Pathak #1, Neha Bakawale *2 # Department of Electronics and Communication, Patel Group of Institution, Indore Performance evolution of turbo coded MIMO- WiMAX system over different channels and different modulation Neha Pathak #1, Neha Bakawale *2 # Department of Electronics and Communication, Patel Group of Institution,

More information

Comparative Channel Capacity Analysis of a MIMO Rayleigh Fading Channel with Different Antenna Spacing and Number of Nodes

Comparative Channel Capacity Analysis of a MIMO Rayleigh Fading Channel with Different Antenna Spacing and Number of Nodes Comparative Channel Capacity Analysis of a MIMO Rayleigh Fading Channel with Different Antenna Spacing and Number of Nodes Anand Jain 1, Kapil Kumawat, Harish Maheshwari 3 1 Scholar, M. Tech., Digital

More information

THE EFFECT of multipath fading in wireless systems can

THE EFFECT of multipath fading in wireless systems can IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, VOL. 47, NO. 1, FEBRUARY 1998 119 The Diversity Gain of Transmit Diversity in Wireless Systems with Rayleigh Fading Jack H. Winters, Fellow, IEEE Abstract In

More information

Service Differentiation in Multi-Rate Wireless Networks with Weighted Round-Robin Scheduling and ARQ-Based Error Control

Service Differentiation in Multi-Rate Wireless Networks with Weighted Round-Robin Scheduling and ARQ-Based Error Control IEEE TRANSACTIONS ON COMMUNICATIONS, VOL, NO, FEBRUARY 00 1 Service Differentiation in Multi-Rate Wireless Networks with Weighted Round-Robin Scheduling and ARQ-Based Error Control Long B Le, Student Member,

More information

CALIFORNIA STATE UNIVERSITY, NORTHRIDGE FADING CHANNEL CHARACTERIZATION AND MODELING

CALIFORNIA STATE UNIVERSITY, NORTHRIDGE FADING CHANNEL CHARACTERIZATION AND MODELING CALIFORNIA STATE UNIVERSITY, NORTHRIDGE FADING CHANNEL CHARACTERIZATION AND MODELING A graduate project submitted in partial fulfillment of the requirements For the degree of Master of Science in Electrical

More information

k l fading channels: a finite state Markov modelling approach

k l fading channels: a finite state Markov modelling approach Sådhanå (8) 43:7 Ó Indian Academy of Sciences https://doi.org/.7/s46-7-779-5sadhana(3456789().,-volv)ft3 ](3456789().,-volV) k l fading channels: a finite state Markov modelling approach C PRIYANKA, V

More information

Simulation of Fading Channel and Burst Error Behavior of State-3 Memoryless Markov Model

Simulation of Fading Channel and Burst Error Behavior of State-3 Memoryless Markov Model Cyber Journals: Multidisciplinary Journals in Science and Technology, Journal of Selected Areas in Telecommunications (JSAT), November Edition, 2011 Simulation of Fading Channel and Burst Error Behavior

More information

UNDERWATER ACOUSTIC CHANNEL ESTIMATION AND ANALYSIS

UNDERWATER ACOUSTIC CHANNEL ESTIMATION AND ANALYSIS Proceedings of the 5th Annual ISC Research Symposium ISCRS 2011 April 7, 2011, Rolla, Missouri UNDERWATER ACOUSTIC CHANNEL ESTIMATION AND ANALYSIS Jesse Cross Missouri University of Science and Technology

More information

Unit 8 - Week 7 - Computer simulation of Rayleigh fading, Antenna Diversity

Unit 8 - Week 7 - Computer simulation of Rayleigh fading, Antenna Diversity X Courses» Introduction to Wireless and Cellular Communications Announcements Course Forum Progress Mentor Unit 8 - Week 7 - Computer simulation of Rayleigh fading, Antenna Diversity Course outline How

More information

Performance Optimization of Hybrid Combination of LDPC and RS Codes Using Image Transmission System Over Fading Channels

Performance Optimization of Hybrid Combination of LDPC and RS Codes Using Image Transmission System Over Fading Channels European Journal of Scientific Research ISSN 1450-216X Vol.35 No.1 (2009), pp 34-42 EuroJournals Publishing, Inc. 2009 http://www.eurojournals.com/ejsr.htm Performance Optimization of Hybrid Combination

More information

Performance of Single-tone and Two-tone Frequency-shift Keying for Ultrawideband

Performance of Single-tone and Two-tone Frequency-shift Keying for Ultrawideband erformance of Single-tone and Two-tone Frequency-shift Keying for Ultrawideband Cheng Luo Muriel Médard Electrical Engineering Electrical Engineering and Computer Science, and Computer Science, Massachusetts

More information

Effect of varying Threshold over BER Performance

Effect of varying Threshold over BER Performance Effect of varying Threshold over Performance Sunayana Kurukshetra Institute of Technology and Management, Kurukshetra, Haryana, India Jyoti Saxena Gaini Zail Singh Punjab Technical University Campus, Bathinda,

More information

Implementation of a Real-Time Rayleigh, Rician and AWGN Multipath Channel Emulator

Implementation of a Real-Time Rayleigh, Rician and AWGN Multipath Channel Emulator Implementation of a Real-Time Rayleigh, Rician and AWGN Multipath Channel Emulator Peter John Green Advanced Communication Department Communication and Network Cluster Institute for Infocomm Research Singapore

More information

On the Spectral Efficiency of MIMO MC-CDMA System

On the Spectral Efficiency of MIMO MC-CDMA System I J C T A, 9(19) 2016, pp. 9311-9316 International Science Press On the Spectral Efficiency of MIMO MC-CDMA System Madhvi Jangalwa and Vrinda Tokekar ABSTRACT The next generation wireless communication

More information

DYNAMIC POWER ALLOCATION SCHEME USING LOAD MATRIX TO CONTROL INTERFERENCE IN 4G MOBILE COMMUNICATION SYSTEMS

DYNAMIC POWER ALLOCATION SCHEME USING LOAD MATRIX TO CONTROL INTERFERENCE IN 4G MOBILE COMMUNICATION SYSTEMS DYNAMIC POWER ALLOCATION SCHEME USING LOAD MATRIX TO CONTROL INTERFERENCE IN 4G MOBILE COMMUNICATION SYSTEMS Srinivas karedla 1, Dr. Ch. Santhi Rani 2 1 Assistant Professor, Department of Electronics and

More information

Performance Study of MIMO-OFDM System in Rayleigh Fading Channel with QO-STB Coding Technique

Performance Study of MIMO-OFDM System in Rayleigh Fading Channel with QO-STB Coding Technique e-issn 2455 1392 Volume 2 Issue 6, June 2016 pp. 190 197 Scientific Journal Impact Factor : 3.468 http://www.ijcter.com Performance Study of MIMO-OFDM System in Rayleigh Fading Channel with QO-STB Coding

More information

Cooperative Spectrum Sensing and Decision Making Rules for Cognitive Radio

Cooperative Spectrum Sensing and Decision Making Rules for Cognitive Radio ISSN (Online) : 2319-8753 ISSN (Print) : 2347-6710 International Journal of Innovative Research in Science, Engineering and Technology Volume 3, Special Issue 3, March 2014 2014 International Conference

More information

Performance of one-hop/symbol FHMA for cellular mobile communications. IEEE Transactions on Vehicular Technology, 2001, v. 50 n. 2, p.

Performance of one-hop/symbol FHMA for cellular mobile communications. IEEE Transactions on Vehicular Technology, 2001, v. 50 n. 2, p. Title Performance of one-hop/symbol FHMA for cellular mobile communications Author(s) Wang, J Citation IEEE Transactions on Vehicular Technology, 2001, v. 50 n. 2, p. 441-451 Issued Date 2001 URL http://hdl.handle.net/10722/44858

More information

Performance Evaluation Of Digital Modulation Techniques In Awgn Communication Channel

Performance Evaluation Of Digital Modulation Techniques In Awgn Communication Channel Performance Evaluation Of Digital Modulation Techniques In Awgn Communication Channel Oyetunji S. A 1 and Akinninranye A. A 2 1 Federal University of Technology Akure, Nigeria 2 MTN Nigeria Abstract The

More information

Performance Analysis of Cooperative Communication System with a SISO system in Flat Fading Rayleigh channel

Performance Analysis of Cooperative Communication System with a SISO system in Flat Fading Rayleigh channel Performance Analysis of Cooperative Communication System with a SISO system in Flat Fading Rayleigh channel Sara Viqar 1, Shoab Ahmed 2, Zaka ul Mustafa 3 and Waleed Ejaz 4 1, 2, 3 National University

More information

Achievable Unified Performance Analysis of Orthogonal Space-Time Block Codes with Antenna Selection over Correlated Rayleigh Fading Channels

Achievable Unified Performance Analysis of Orthogonal Space-Time Block Codes with Antenna Selection over Correlated Rayleigh Fading Channels Achievable Unified Performance Analysis of Orthogonal Space-Time Block Codes with Antenna Selection over Correlated Rayleigh Fading Channels SUDAKAR SINGH CHAUHAN Electronics and Communication Department

More information

SNR Estimation in Nakagami Fading with Diversity for Turbo Decoding

SNR Estimation in Nakagami Fading with Diversity for Turbo Decoding SNR Estimation in Nakagami Fading with Diversity for Turbo Decoding A. Ramesh, A. Chockalingam Ý and L. B. Milstein Þ Wireless and Broadband Communications Synopsys (India) Pvt. Ltd., Bangalore 560095,

More information

WIRELESS COMMUNICATION TECHNOLOGIES (16:332:546) LECTURE 5 SMALL SCALE FADING

WIRELESS COMMUNICATION TECHNOLOGIES (16:332:546) LECTURE 5 SMALL SCALE FADING WIRELESS COMMUNICATION TECHNOLOGIES (16:332:546) LECTURE 5 SMALL SCALE FADING Instructor: Dr. Narayan Mandayam Slides: SabarishVivek Sarathy A QUICK RECAP Why is there poor signal reception in urban clutters?

More information

UWB Small Scale Channel Modeling and System Performance

UWB Small Scale Channel Modeling and System Performance UWB Small Scale Channel Modeling and System Performance David R. McKinstry and R. Michael Buehrer Mobile and Portable Radio Research Group Virginia Tech Blacksburg, VA, USA {dmckinst, buehrer}@vt.edu Abstract

More information

Millimeter Wave Small-Scale Spatial Statistics in an Urban Microcell Scenario

Millimeter Wave Small-Scale Spatial Statistics in an Urban Microcell Scenario Millimeter Wave Small-Scale Spatial Statistics in an Urban Microcell Scenario Shu Sun, Hangsong Yan, George R. MacCartney, Jr., and Theodore S. Rappaport {ss7152,hy942,gmac,tsr}@nyu.edu IEEE International

More information

Performance Analysis of Concatenated RS-CC Codes for WiMax System using QPSK

Performance Analysis of Concatenated RS-CC Codes for WiMax System using QPSK Performance Analysis of Concatenated RS-CC Codes for WiMax System using QPSK Department of Electronics Technology, GND University Amritsar, Punjab, India Abstract-In this paper we present a practical RS-CC

More information

SPLIT MLSE ADAPTIVE EQUALIZATION IN SEVERELY FADED RAYLEIGH MIMO CHANNELS

SPLIT MLSE ADAPTIVE EQUALIZATION IN SEVERELY FADED RAYLEIGH MIMO CHANNELS SPLIT MLSE ADAPTIVE EQUALIZATION IN SEVERELY FADED RAYLEIGH MIMO CHANNELS RASHMI SABNUAM GUPTA 1 & KANDARPA KUMAR SARMA 2 1 Department of Electronics and Communication Engineering, Tezpur University-784028,

More information

CONSIDER THE following power capture model. If

CONSIDER THE following power capture model. If 254 IEEE TRANSACTIONS ON COMMUNICATIONS, VOL. 45, NO. 2, FEBRUARY 1997 On the Capture Probability for a Large Number of Stations Bruce Hajek, Fellow, IEEE, Arvind Krishna, Member, IEEE, and Richard O.

More information

To analyze the power spectral density and PAPR of FDMA and SC-FDM

To analyze the power spectral density and PAPR of FDMA and SC-FDM www.ijaser.com 2014 by the authors Licensee IJASER- Under Creative Commons License 3.0 editorial@ijaser.com Research article ISSN 2277 9442 To analyze the power spectral density and PAPR of FDMA and SC-FDM

More information

CHAPTER 2 WIRELESS CHANNEL

CHAPTER 2 WIRELESS CHANNEL CHAPTER 2 WIRELESS CHANNEL 2.1 INTRODUCTION In mobile radio channel there is certain fundamental limitation on the performance of wireless communication system. There are many obstructions between transmitter

More information

Performance of wireless Communication Systems with imperfect CSI

Performance of wireless Communication Systems with imperfect CSI Pedagogy lecture Performance of wireless Communication Systems with imperfect CSI Yogesh Trivedi Associate Prof. Department of Electronics and Communication Engineering Institute of Technology Nirma University

More information

Second Order Statistics of SC Receiver over k-μ Multipath Fading Channel

Second Order Statistics of SC Receiver over k-μ Multipath Fading Channel SERBIAN JOURNAL OF ELECTRICAL ENGINEERING Vol., No. 3, October 04, 39-40 UDC: 6.39.8:6.37.3 DOI: 0.98/SJEE4030308B Second Order Statistics of SC Receiver over k-μ Multipath Fading Channel Miloš Bandjur,

More information

Joint Adaptive Modulation and Diversity Combining with Feedback Error Compensation

Joint Adaptive Modulation and Diversity Combining with Feedback Error Compensation Joint Adaptive Modulation and Diversity Combining with Feedback Error Compensation Seyeong Choi, Mohamed-Slim Alouini, Khalid A. Qaraqe Dept. of Electrical Eng. Texas A&M University at Qatar Education

More information

COGNITIVE Radio (CR) [1] has been widely studied. Tradeoff between Spoofing and Jamming a Cognitive Radio

COGNITIVE Radio (CR) [1] has been widely studied. Tradeoff between Spoofing and Jamming a Cognitive Radio Tradeoff between Spoofing and Jamming a Cognitive Radio Qihang Peng, Pamela C. Cosman, and Laurence B. Milstein School of Comm. and Info. Engineering, University of Electronic Science and Technology of

More information

VOL. 3, NO.11 Nov, 2012 ISSN Journal of Emerging Trends in Computing and Information Sciences CIS Journal. All rights reserved.

VOL. 3, NO.11 Nov, 2012 ISSN Journal of Emerging Trends in Computing and Information Sciences CIS Journal. All rights reserved. Effect of Fading Correlation on the Performance of Spatial Multiplexed MIMO systems with circular antennas M. A. Mangoud Department of Electrical and Electronics Engineering, University of Bahrain P. O.

More information

BER Comparison of DCT-based OFDM and FFT-based OFDM using BPSK Modulation over AWGN and Multipath Rayleigh Fading Channel

BER Comparison of DCT-based OFDM and FFT-based OFDM using BPSK Modulation over AWGN and Multipath Rayleigh Fading Channel BER Comparison of DCT-based and FFT-based using BPSK Modulation over AWGN and Multipath Rayleigh Channel Lalchandra Patidar Department of Electronics and Communication Engineering, MIT Mandsaur (M.P.)-458001,

More information

Performance Analysis of LTE Downlink System with High Velocity Users

Performance Analysis of LTE Downlink System with High Velocity Users Journal of Computational Information Systems 10: 9 (2014) 3645 3652 Available at http://www.jofcis.com Performance Analysis of LTE Downlink System with High Velocity Users Xiaoyue WANG, Di HE Department

More information

On limits of Wireless Communications in a Fading Environment: a General Parameterization Quantifying Performance in Fading Channel

On limits of Wireless Communications in a Fading Environment: a General Parameterization Quantifying Performance in Fading Channel Indonesian Journal of Electrical Engineering and Informatics (IJEEI) Vol. 2, No. 3, September 2014, pp. 125~131 ISSN: 2089-3272 125 On limits of Wireless Communications in a Fading Environment: a General

More information

Effects of Fading Channels on OFDM

Effects of Fading Channels on OFDM IOSR Journal of Engineering (IOSRJEN) e-issn: 2250-3021, p-issn: 2278-8719, Volume 2, Issue 9 (September 2012), PP 116-121 Effects of Fading Channels on OFDM Ahmed Alshammari, Saleh Albdran, and Dr. Mohammad

More information

ABEP Upper and Lower Bound of BPSK System over OWDP Fading Channels

ABEP Upper and Lower Bound of BPSK System over OWDP Fading Channels Advances in Wireless and Mobile Communications. ISSN 0973-697 Volume 10, Number (017), pp. 307-313 Research India Publications http://www.ripublication.com ABEP Upper and Lower Bound of BPSK System over

More information

TRANSMIT diversity has emerged in the last decade as an

TRANSMIT diversity has emerged in the last decade as an IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, VOL. 3, NO. 5, SEPTEMBER 2004 1369 Performance of Alamouti Transmit Diversity Over Time-Varying Rayleigh-Fading Channels Antony Vielmon, Ye (Geoffrey) Li,

More information

Increasing the Efficiency of Rake Receivers for Ultra-Wideband Applications

Increasing the Efficiency of Rake Receivers for Ultra-Wideband Applications 1 Increasing the Efficiency of Rake Receivers for Ultra-Wideband Applications Aimilia P. Doukeli, Athanasios S. Lioumpas, Student Member, IEEE, George K. Karagiannidis, Senior Member, IEEE, Panayiotis

More information

Cooperative Orthogonal Space-Time-Frequency Block Codes over a MIMO-OFDM Frequency Selective Channel

Cooperative Orthogonal Space-Time-Frequency Block Codes over a MIMO-OFDM Frequency Selective Channel Cooperative Orthogonal Space-Time-Frequency Block Codes over a MIMO-OFDM Frequency Selective Channel M. Rezaei* and A. Falahati* (C.A.) Abstract: In this paper, a cooperative algorithm to improve the orthogonal

More information

Performance Analysis of Maximum Likelihood Detection in a MIMO Antenna System

Performance Analysis of Maximum Likelihood Detection in a MIMO Antenna System IEEE TRANSACTIONS ON COMMUNICATIONS, VOL. 50, NO. 2, FEBRUARY 2002 187 Performance Analysis of Maximum Likelihood Detection in a MIMO Antenna System Xu Zhu Ross D. Murch, Senior Member, IEEE Abstract In

More information

DESIGN AND ANALYSIS OF MULTIBAND OFDM SYSTEM OVER ULTRA WIDE BAND CHANNELS

DESIGN AND ANALYSIS OF MULTIBAND OFDM SYSTEM OVER ULTRA WIDE BAND CHANNELS DESIGN AND ANALYSIS OF MULTIBAND OFDM SYSTEM OVER ULTRA WIDE BAND CHANNELS G.Joselin Retna Kumar Research Scholar, Sathyabama University, Chennai, Tamil Nadu, India joselin_su@yahoo.com K.S.Shaji Principal,

More information

Analyzing Pulse Position Modulation Time Hopping UWB in IEEE UWB Channel

Analyzing Pulse Position Modulation Time Hopping UWB in IEEE UWB Channel Analyzing Pulse Position Modulation Time Hopping UWB in IEEE UWB Channel Vikas Goyal 1, B.S. Dhaliwal 2 1 Dept. of Electronics & Communication Engineering, Guru Kashi University, Talwandi Sabo, Bathinda,

More information

Utilization of Multipaths for Spread-Spectrum Code Acquisition in Frequency-Selective Rayleigh Fading Channels

Utilization of Multipaths for Spread-Spectrum Code Acquisition in Frequency-Selective Rayleigh Fading Channels 734 IEEE TRANSACTIONS ON COMMUNICATIONS, VOL. 49, NO. 4, APRIL 2001 Utilization of Multipaths for Spread-Spectrum Code Acquisition in Frequency-Selective Rayleigh Fading Channels Oh-Soon Shin, Student

More information

Power Control Optimization of Code Division Multiple Access (CDMA) Systems Using the Knowledge of Battery Capacity Of the Mobile.

Power Control Optimization of Code Division Multiple Access (CDMA) Systems Using the Knowledge of Battery Capacity Of the Mobile. Power Control Optimization of Code Division Multiple Access (CDMA) Systems Using the Knowledge of Battery Capacity Of the Mobile. Rojalin Mishra * Department of Electronics & Communication Engg, OEC,Bhubaneswar,Odisha

More information

Adaptive Band Jamming in Wireless Networks using Fast Frequency Hopping and Non-Coherent Detection

Adaptive Band Jamming in Wireless Networks using Fast Frequency Hopping and Non-Coherent Detection Adaptive Band Jamming in Wireless Networks using Fast Frequency Hopping and Non-Coherent Detection Sapna Patidar 1, Ravi Khatri 2 1,2 Department of CSE, VITM, Indore Abstract Wireless Networks suffer from

More information

TCM-coded OFDM assisted by ANN in Wireless Channels

TCM-coded OFDM assisted by ANN in Wireless Channels 1 Aradhana Misra & 2 Kandarpa Kumar Sarma Dept. of Electronics and Communication Technology Gauhati University Guwahati-781014. Assam, India Email: aradhana66@yahoo.co.in, kandarpaks@gmail.com Abstract

More information

MULTIPATH fading could severely degrade the performance

MULTIPATH fading could severely degrade the performance 1986 IEEE TRANSACTIONS ON COMMUNICATIONS, VOL. 53, NO. 12, DECEMBER 2005 Rate-One Space Time Block Codes With Full Diversity Liang Xian and Huaping Liu, Member, IEEE Abstract Orthogonal space time block

More information

(Refer Slide Time: 00:01:31 min)

(Refer Slide Time: 00:01:31 min) Wireless Communications Dr. Ranjan Bose Department of Electrical Engineering Indian Institute of Technology, Delhi Lecture No. # 32 Equalization and Diversity Techniques for Wireless Communications (Continued)

More information

Implementation of Different Interleaving Techniques for Performance Evaluation of CDMA System

Implementation of Different Interleaving Techniques for Performance Evaluation of CDMA System Implementation of Different Interleaving Techniques for Performance Evaluation of CDMA System Anshu Aggarwal 1 and Vikas Mittal 2 1 Anshu Aggarwal is student of M.Tech. in the Department of Electronics

More information

The correlated MIMO channel model for IEEE n

The correlated MIMO channel model for IEEE n THE JOURNAL OF CHINA UNIVERSITIES OF POSTS AND TELECOMMUNICATIONS Volume 14, Issue 3, Sepbember 007 YANG Fan, LI Dao-ben The correlated MIMO channel model for IEEE 80.16n CLC number TN99.5 Document A Article

More information

SIMULATIONS OF ERROR CORRECTION CODES FOR DATA COMMUNICATION OVER POWER LINES

SIMULATIONS OF ERROR CORRECTION CODES FOR DATA COMMUNICATION OVER POWER LINES SIMULATIONS OF ERROR CORRECTION CODES FOR DATA COMMUNICATION OVER POWER LINES Michelle Foltran Miranda Eduardo Parente Ribeiro mifoltran@hotmail.com edu@eletrica.ufpr.br Departament of Electrical Engineering,

More information

Performance of Selected Diversity Techniques Over The α-µ Fading Channels

Performance of Selected Diversity Techniques Over The α-µ Fading Channels Performance of Selected Diversity Techniques Over The α-µ Fading Channels TAIMOUR ALDALGAMOUNI 1, AMER M. MAGABLEH, AHMAD AL-HUBAISHI Electrical Engineering Department Jordan University of Science and

More information

THE problem of noncoherent detection of frequency-shift

THE problem of noncoherent detection of frequency-shift IEEE TRANSACTIONS ON COMMUNICATIONS, VOL. 45, NO. 11, NOVEMBER 1997 1417 Optimal Noncoherent Detection of FSK Signals Transmitted Over Linearly Time-Selective Rayleigh Fading Channels Giorgio M. Vitetta,

More information

Ternary Zero Correlation Zone Sequences for Multiple Code UWB

Ternary Zero Correlation Zone Sequences for Multiple Code UWB Ternary Zero Correlation Zone Sequences for Multiple Code UWB Di Wu, Predrag Spasojević and Ivan Seskar WINLAB, Rutgers University 73 Brett Road, Piscataway, NJ 8854 {diwu,spasojev,seskar}@winlabrutgersedu

More information

Keywords - Maximal-Ratio-Combining (MRC), M-ary Phase Shift Keying (MPSK), Symbol Error Probability (SEP), Signal-to-Noise Ratio (SNR).

Keywords - Maximal-Ratio-Combining (MRC), M-ary Phase Shift Keying (MPSK), Symbol Error Probability (SEP), Signal-to-Noise Ratio (SNR). Volume 4, Issue 4, April 4 ISS: 77 8X International Journal of Advanced Research in Computer Science and Software Engineering Research Paper Available online at: www.ijarcsse.com SEP Performance of MPSK

More information