Anti-Collision RFID System Based on Combination of TD and Gold Code Techniques

Size: px
Start display at page:

Download "Anti-Collision RFID System Based on Combination of TD and Gold Code Techniques"

Transcription

1 , pp Anti-Collision RFID System Based on Combination of TD and Gold Code Techniques Grishma Khadka 1, Tae-yun Kim 2, Suk-seung Hwang 3 1 Dept. of Advanced Parts and Material Engineering, Chosun University, Gwangju, Korea 2 Dept. of Electronic Engineering, Chosun University, Gwangju, Korea 3 Dept. of Electronic Engineering, Chosun University, Gwangju, Korea (Corressponding Author) 1 grishmakhadka@chosun.kr, 2 skriekd12@chosun.kr, 3 hwangss@chosun.ac.kr Abstract. Radio-frequency identification (RFID) communication system known as auto-id has experienced tremendous growth worldwide, considering as a flexible mechanism for identification of objects. Degradation of data transmission due to external interference and interference of RFID system itself (tags and reader collision) is one of the most important factors to restrict the development of the RFID system and has a direct bearing on the performance of the whole system. In order to eliminate the tag collision problem in an RFID system variety of different anti-collision algorithms have been proposed by many researchers for the successful adoption of RFID on a massive scale. Synthesizing much anti-collision algorithm and conducting in-depth analysis, we propose a new combined primary digital transmission technique based on time division (TD) and gold code to efficiently suppress tag-to-tag interference. Keywords: RFID, Time Division, Gold Code, Interference Suppression 1 Introduction RFID is an emerging technology gaining momentum as a popular means for automatic object identification. It helps to revolutionize the modern supply chain and logistic operations. The effectiveness of RFID service is very important in the dynamic interaction and collaboration among logistics participants because now a day many companies are preparing to integrate RFID into their supply chains. However, addressing to a fully developed trustworthy RFID system is still c hallenged. In RFID system, interference from an external source and an internal interference which includes tag to tag, tag to reader and reader to reader collision of different radio signals with the same frequency, leads to the distortion of the original signals [1]. Collision of signals results in a wastage of bandwidth, energy as well as it increases identification delays. Various works based on probabilistic and deterministic approaches using multiple access techniques are performed to reduce the collision problem [2]. Comparing to other multiple access systems like FDMA, the current standard for TDMA offered three times the capacity of FDMA, and it was computed that CDMA offered six times the capacity [3]. Thus, in a combined TD/CDMA technology, TD helps to reduce ISSN: ASTL Copyright 2015 SERSC

2 tag s interference whereas CDMA communication network can take the advantage by increasing effective communication between tags and reader. This paper combines the TD technique [4] which uses the specific time slots and CDMA technique [5] which usage fixed number of Gold code for accommodating multiple RFID tags to reduce tag-to-tag interferences and thereby to increase the tagto-reader communication. 2 Received Signal Model In TD/CDMA method, the specific tag groups are only transmitted in a precise time interval. Let us consider, L is the entire number of tags contain in each tag group and M is the total number of data bits in each tag. The tag group obtained in a fixed time interval is spread using CDMA process. In order to spread data sequence of each tag group, each tag data bit is directly multiplied by the element of the cyclostationary gold code with length N. The received signal vector, r(k) after spreading at sample index k can be modeled as M r i (k) = b i,j g i (k) + n(k) where i = 1,, L j=1 (1) where g i (k) is the cyclostationary gold code with length N for the i th tag which is defined as g i = [g i (k), g i (k + 1),, g i (k + N 1)] T (2) n(k) is the additive white Gaussian noise (AWGN) with independent and identically distributed components, each with zero mean and variance σ 2. In a receiver, the multiplexed signal from all tags of a particular tag group and the noise are received and multiplied again by the same gold code. Since, g i T g i = N and g i T g l N, where i l, the despreaded signal with i th gold code is given by g i (k) r T g i (n)g i = [r i (k), r i (k + 1),, r i (k + L 1)] i (k + 1)... [ g i (k + N 1)] = b 1 (n) b 2 (n) + Nb i (n) + b L (n) + n(n) (3) where, b i (n) = [b i (k), b i (k + 1),, b i (k + L 1)]g i and n(n) = [n(k), n(k + Copyright 2015 SERSC 79

3 1),, n(k + L 1)] T g i. The signal strength and the distance relation are calculated using Friis free spa ce equation, given by P tag [db] = P r [db]+g r [db] + G tag [db] 10log 10 ( 4πd λ ) 2 where, P tag and P r are the power received at the antenna of the tag and power transmitted from the reader. G, and G ta g are the transmitter and receiver antenna r gains, respectively. λ is the wavelength in meter, and d is the distance between the transmitter and the receiver antenna [6, 7]. (6) 3 RFID Anti-Collision Based on Combine TD and CDMA Method In order to avoid interference due to neighboring tags, we present TD/CDMA method for receiving information from multiple tags to a single reader. A combined TD/CDMA method helps in providing simultaneous access of a communication channel and also helps in eliminating the effects of multiple access interferences, which degrades and limits the (Bit Error Rate) BER performance within the system [8]. 3.1 Data Architecture for RFID Anti-Collision Based on TD/CDMA Method We propose efficient data architecture for RFID anti-collision based on TD/CDMA method. Here, we divide TD/CDMA method into two phases. 3.2 Allocation of Time Slots for Different Tag Groups In the first phase, we allocate the specific time slots for different tag groups where all tag groups contain a certain number of tags as shown in Fig. 1. Here, all tags within a tag group contain a fixed number of data bits for the main data. The function of main data helps in providing tag information (ID, electronic product code (EPC) number and main information). During communication, the reader sends the wake up signal to tags locating at different distance within its interrogation zone, thus a fixed tag group starts transmitting of the main data in a precise time interval that means a particular time interval is reserved for the specific group of tag, which helps from collision between the tags from neighboring tags of a different group. 3.3 Spreading and Despreading of Data Sequence of Each Tag Group In the second phase; the spreading signal is generated by convolving a unique gold 80 Copyright 2015 SERSC80

4 code sequence to each tag data bit of a fixed tag group obtained at a specific time interval. The despreading is done at the receiver where the multiplexed signals from all tags within a specific tag group, and the noise is received and is multiplied again by the same gold code to detect the desired data and to suppress the interference signals from other tags. Fig. 1. Data architecture of proposed TD/CDMA method 4 Computer Simulation The evaluation of combined TD/CDMA operation for RFID anti-collision has been done using computer simulation to illustrate the performance of interference suppression. For the simulation, we assume 900 MHz frequency of RFID signal and AWGN with zero mean and variance σ 2. Similarly, we assume the transmitted power of the tag is fixed at the distance of 2m with minimum loss in bits, and the length of gold code is 15. Copyright 2015 SERSC 81

5 BER Proposed System TD System 10-5 Conventional System SNR(dB) (a) (b) Fig. 2. BER performance for the proposed, TD and conventional system at (a) same distance and (b) different distances (a) (b) Fig. 3. FER performance for the proposed TD/CDMA and conventional system at distances of 1.8, 2, 2.2, 2.4m at (a) frame size equal to 96bits and (b) frame size equal to 144 bits From Fig. 2 (a), we observe that BER of the proposed system is much lower than the TD and conventional methods at a same distance. Fig. 2 (b) shows an expanded version of the BER curves, at different distances from 1.8 to 2.4m. From these result, we observe that the proposed system BER is lower when the distance between the tag and the reader is shorter and better than TD and conventional methods. Fig. 3. Shows the frame error rate (FER) at frame lengths equal to 96, and 144 bits. From the above simulations, we observe that FER of the proposed system increases with the rise in the length of the data frames whereas conventional system results in high FER in all cases. 82 Copyright 2015 SERSC82

6 5 Conclusion The data transmission from an RFID tag to the reader suffers the interference signals from adjacent tags. In order to overcome this problem, we proposed an efficient RFID interference suppression technique based on the combination of TD and gold code. In this method, we can add more tags within the read range of the reader, which is considered to be the great achievement in RFID data architecture. Therefore, the proposed RFID architecture improves the data reliability and efficiency throughout the system. The interference suppression performance of the proposed method at different distances was illustrated by a computer simulation. Acknowledgments. This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (No and No ) References 1. Yan, L., Zhang, Y., Yang, L. T., & Ning, H. (Eds.).: The Internet of things: from RFID to the next-generation pervasive networked systems. CRC Press (2008) 2. Klair, Dheeraj K., Kwan-Wu Chin., and Raad Raad.: A survey and tutorial of RFID anticollision protocols. Communications Surveys & Tutorials, IEEE 12.3, pp (2010). 3. Hamidian, K.., Payne, J.: Combined CDMA with TDMA increases the capacity of a cellular communication system. In Communications, Computers and Signal Processing, IEEE Pacific Rim Conference on, vol.2, pp , (1993). 4. Khadka, Grishma., Hwang, S.S.: An Anti-collision RFID system based on Time Division in construction workplace. The Korea Institute of Electronic communication sciences vol. 6, no.2, pp , (2012). 5. Khadka, Grishma., Hwang, S.S.: Performance Analysis of RFID Interference Suppression System Based on the Gold Code. The Journal of the Korea Institute of Electronic Communication Sciences. vol.8, no.10, pp (2013) 6. Dobkin., D.M.: The RF in RFID: Passive UHF RFID in Practice. Newnes: Burlington, USA. 7. Rappaport, T.S.: Wireless Communication- Principal and Practice 2 nd ed. Prentice Hall, PTR New Jersey (1996). 8. Khan, A. R.: Performance evaluation of DS-CDMA system using MATLAB. Int. J. Adv. Eng. Technol, vol.6, pp (2012). Copyright 2015 SERSC 83

Communications Theory and Engineering

Communications Theory and Engineering Communications Theory and Engineering Master's Degree in Electronic Engineering Sapienza University of Rome A.A. 2018-2019 TDMA, FDMA, CDMA (cont d) and the Capacity of multi-user channels Code Division

More information

Channel selection for IEEE based wireless LANs using 2.4 GHz band

Channel selection for IEEE based wireless LANs using 2.4 GHz band Channel selection for IEEE 802.11 based wireless LANs using 2.4 GHz band Jihoon Choi 1a),KyubumLee 1, Sae Rom Lee 1, and Jay (Jongtae) Ihm 2 1 School of Electronics, Telecommunication, and Computer Engineering,

More information

Dynamic Framed Slotted ALOHA Algorithms using Fast Tag Estimation Method for RFID System

Dynamic Framed Slotted ALOHA Algorithms using Fast Tag Estimation Method for RFID System Dynamic Framed Slotted AOHA Algorithms using Fast Tag Estimation Method for RFID System Jae-Ryong Cha School of Electrical and Computer Engineering Ajou Univ., Suwon, Korea builder@ajou.ac.kr Jae-Hyun

More information

Performance of Wideband Mobile Channel with Perfect Synchronism BPSK vs QPSK DS-CDMA

Performance of Wideband Mobile Channel with Perfect Synchronism BPSK vs QPSK DS-CDMA Performance of Wideband Mobile Channel with Perfect Synchronism BPSK vs QPSK DS-CDMA By Hamed D. AlSharari College of Engineering, Aljouf University, Sakaka, Aljouf 2014, Kingdom of Saudi Arabia, hamed_100@hotmail.com

More information

CDMA - QUESTIONS & ANSWERS

CDMA - QUESTIONS & ANSWERS CDMA - QUESTIONS & ANSWERS http://www.tutorialspoint.com/cdma/questions_and_answers.htm Copyright tutorialspoint.com 1. What is CDMA? CDMA stands for Code Division Multiple Access. It is a wireless technology

More information

Improving Reader Performance of an UHF RFID System Using Frequency Hopping Techniques

Improving Reader Performance of an UHF RFID System Using Frequency Hopping Techniques 1 Improving Reader Performance of an UHF RFID System Using Frequency Hopping Techniques Ju-Yen Hung and Venkatesh Sarangan *, MSCS 219, Computer Science Department, Oklahoma State University, Stillwater,

More information

An Energy-Division Multiple Access Scheme

An Energy-Division Multiple Access Scheme An Energy-Division Multiple Access Scheme P Salvo Rossi DIS, Università di Napoli Federico II Napoli, Italy salvoros@uninait D Mattera DIET, Università di Napoli Federico II Napoli, Italy mattera@uninait

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

Simulative Investigations for Robust Frequency Estimation Technique in OFDM System

Simulative Investigations for Robust Frequency Estimation Technique in OFDM System , pp. 187-192 http://dx.doi.org/10.14257/ijfgcn.2015.8.4.18 Simulative Investigations for Robust Frequency Estimation Technique in OFDM System Kussum Bhagat 1 and Jyoteesh Malhotra 2 1 ECE Department,

More information

Power Allocation based Hybrid Multihop Relaying Protocol for Sensor Networks

Power Allocation based Hybrid Multihop Relaying Protocol for Sensor Networks , pp.70-74 http://dx.doi.org/10.14257/astl.2014.46.16 Power Allocation based Hybrid Multihop Relaying Protocol for Sensor Networks Saransh Malik 1,Sangmi Moon 1, Bora Kim 1, Hun Choi 1, Jinsul Kim 1, Cheolhong

More information

Simulation of Anti-Jamming Technology in Frequency-Hopping Communication System

Simulation of Anti-Jamming Technology in Frequency-Hopping Communication System , pp.249-254 http://dx.doi.org/0.4257/astl.206. Simulation of Anti-Jamming Technology in Frequency-Hopping Communication System Bing Zhao, Lei Xin, Xiaojie Xu and Qun Ding Electronic Engineering, Heilongjiang

More information

Fully integrated UHF RFID mobile reader with power amplifiers using System-in-Package (SiP)

Fully integrated UHF RFID mobile reader with power amplifiers using System-in-Package (SiP) Fully integrated UHF RFID mobile reader with power amplifiers using System-in-Package (SiP) Hyemin Yang 1, Jongmoon Kim 2, Franklin Bien 3, and Jongsoo Lee 1a) 1 School of Information and Communications,

More information

Key words: OFDM, FDM, BPSK, QPSK.

Key words: OFDM, FDM, BPSK, QPSK. Volume 4, Issue 3, March 2014 ISSN: 2277 128X International Journal of Advanced Research in Computer Science and Software Engineering Research Paper Available online at: www.ijarcsse.com Analyse the Performance

More information

Part 3. Multiple Access Methods. p. 1 ELEC6040 Mobile Radio Communications, Dept. of E.E.E., HKU

Part 3. Multiple Access Methods. p. 1 ELEC6040 Mobile Radio Communications, Dept. of E.E.E., HKU Part 3. Multiple Access Methods p. 1 ELEC6040 Mobile Radio Communications, Dept. of E.E.E., HKU Review of Multiple Access Methods Aim of multiple access To simultaneously support communications between

More information

Reduced Complexity of QRD-M Detection Scheme in MIMO-OFDM Systems

Reduced Complexity of QRD-M Detection Scheme in MIMO-OFDM Systems Advanced Science and echnology Letters Vol. (ASP 06), pp.4- http://dx.doi.org/0.457/astl.06..4 Reduced Complexity of QRD-M Detection Scheme in MIMO-OFDM Systems Jong-Kwang Kim, Jae-yun Ro and young-kyu

More information

Wireless Network Pricing Chapter 2: Wireless Communications Basics

Wireless Network Pricing Chapter 2: Wireless Communications Basics Wireless Network Pricing Chapter 2: Wireless Communications Basics Jianwei Huang & Lin Gao Network Communications and Economics Lab (NCEL) Information Engineering Department The Chinese University of Hong

More information

Decrease Interference Using Adaptive Modulation and Coding

Decrease Interference Using Adaptive Modulation and Coding International Journal of Computer Networks and Communications Security VOL. 3, NO. 9, SEPTEMBER 2015, 378 383 Available online at: www.ijcncs.org E-ISSN 2308-9830 (Online) / ISSN 2410-0595 (Print) Decrease

More information

Computational Complexity of Multiuser. Receivers in DS-CDMA Systems. Syed Rizvi. Department of Electrical & Computer Engineering

Computational Complexity of Multiuser. Receivers in DS-CDMA Systems. Syed Rizvi. Department of Electrical & Computer Engineering Computational Complexity of Multiuser Receivers in DS-CDMA Systems Digital Signal Processing (DSP)-I Fall 2004 By Syed Rizvi Department of Electrical & Computer Engineering Old Dominion University Outline

More information

Rapid Tag Collision Resolution Using Enhanced Continuous Wave Absence Detection

Rapid Tag Collision Resolution Using Enhanced Continuous Wave Absence Detection Rapid Tag Collision Resolution Using Enhanced Continuous Wave Absence Detection Abdallah Y. Alma aitah School of Computing Queen s University Kingston, Ontario, Canada Email:abdallah@cs.queensu.ca Hossam

More information

PERFORMANCE ANALYSIS OF IDMA SCHEME USING DIFFERENT CODING TECHNIQUES WITH RECEIVER DIVERSITY USING RANDOM INTERLEAVER

PERFORMANCE ANALYSIS OF IDMA SCHEME USING DIFFERENT CODING TECHNIQUES WITH RECEIVER DIVERSITY USING RANDOM INTERLEAVER 1008 PERFORMANCE ANALYSIS OF IDMA SCHEME USING DIFFERENT CODING TECHNIQUES WITH RECEIVER DIVERSITY USING RANDOM INTERLEAVER Shweta Bajpai 1, D.K.Srivastava 2 1,2 Department of Electronics & Communication

More information

Multiuser Detection for Synchronous DS-CDMA in AWGN Channel

Multiuser Detection for Synchronous DS-CDMA in AWGN Channel Multiuser Detection for Synchronous DS-CDMA in AWGN Channel MD IMRAAN Department of Electronics and Communication Engineering Gulbarga, 585104. Karnataka, India. Abstract - In conventional correlation

More information

DATE: 17/08/2006 Issue No 2 e-plate Operation Overview

DATE: 17/08/2006 Issue No 2 e-plate Operation Overview Page 1 of 7 Fundamentals Introduction e-pate technology is the next generation of long range RFID (Radio Frequency IDentification). The objective is wireless and automated data collection of vehicles and

More information

Multiple Access. Difference between Multiplexing and Multiple Access

Multiple Access. Difference between Multiplexing and Multiple Access Multiple Access (MA) Satellite transponders are wide bandwidth devices with bandwidths standard bandwidth of around 35 MHz to 7 MHz. A satellite transponder is rarely used fully by a single user (for example

More information

Performance of Smart Antennas with Adaptive Combining at Handsets for the 3GPP WCDMA System

Performance of Smart Antennas with Adaptive Combining at Handsets for the 3GPP WCDMA System Performance of Smart Antennas with Adaptive Combining at Handsets for the 3GPP WCDMA System Suk Won Kim, Dong Sam Ha, Jeong Ho Kim, and Jung Hwan Kim 3 VTVT (Virginia Tech VLSI for Telecommunications)

More information

BER Analysis for MC-CDMA

BER Analysis for MC-CDMA BER Analysis for MC-CDMA Nisha Yadav 1, Vikash Yadav 2 1,2 Institute of Technology and Sciences (Bhiwani), Haryana, India Abstract: As demand for higher data rates is continuously rising, there is always

More information

Review on Improvement in WIMAX System

Review on Improvement in WIMAX System IJIRST International Journal for Innovative Research in Science & Technology Volume 3 Issue 09 February 2017 ISSN (online): 2349-6010 Review on Improvement in WIMAX System Bhajankaur S. Wassan PG Student

More information

Simulation Study and Performance Comparison of OFDM System with QPSK and BPSK

Simulation Study and Performance Comparison of OFDM System with QPSK and BPSK Simulation Study and Performance Comparison of OFDM System with QPSK and BPSK 1 Mr. Adesh Kumar, 2 Mr. Sudeep Singh, 3 Mr. Shashank, 4 Asst. Prof. Mr. Kuldeep Sharma (Guide) M. Tech (EC), Monad University,

More information

Department of Electronic Engineering FINAL YEAR PROJECT REPORT

Department of Electronic Engineering FINAL YEAR PROJECT REPORT Department of Electronic Engineering FINAL YEAR PROJECT REPORT BEngECE-2009/10-- Student Name: CHEUNG Yik Juen Student ID: Supervisor: Prof.

More information

The BER Evaluation of UMTS under Static Propagation Conditions

The BER Evaluation of UMTS under Static Propagation Conditions Proceedings of the 5th WSEAS Int. Conf. on System Science and Simulation in Engineering, Tenerife, Canary Islands, Spain, December 16-18, 2006 310 The BER Evaluation of UMTS under Static Propagation Conditions

More information

Performance Gain of Smart Antennas with Hybrid Combining at Handsets for the 3GPP WCDMA System

Performance Gain of Smart Antennas with Hybrid Combining at Handsets for the 3GPP WCDMA System Performance Gain of Smart Antennas with Hybrid Combining at Handsets for the 3GPP WCDMA System Suk Won Kim 1, Dong Sam Ha 1, Jeong Ho Kim 2, and Jung Hwan Kim 3 1 VTVT (Virginia Tech VLSI for Telecommunications)

More information

Symbol Timing Detection for OFDM Signals with Time Varying Gain

Symbol Timing Detection for OFDM Signals with Time Varying Gain International Journal of Control and Automation, pp.4-48 http://dx.doi.org/.4257/ijca.23.6.5.35 Symbol Timing Detection for OFDM Signals with Time Varying Gain Jihye Lee and Taehyun Jeon Seoul National

More information

Performance Evaluation of different α value for OFDM System

Performance Evaluation of different α value for OFDM System Performance Evaluation of different α value for OFDM System Dr. K.Elangovan Dept. of Computer Science & Engineering Bharathidasan University richirappalli Abstract: Orthogonal Frequency Division Multiplexing

More information

Wireless Communications and Networking

Wireless Communications and Networking IMA - Wireless Communications and Networking Jon W. Mark and Weihua Zhuang Centre for Wireless Communications Department of Electrical and Computer Engineering University of Waterloo Waterloo, Ontario,

More information

Simulation of Optical CDMA using OOC Code

Simulation of Optical CDMA using OOC Code International Journal of Scientific and Research Publications, Volume 2, Issue 5, May 22 ISSN 225-353 Simulation of Optical CDMA using OOC Code Mrs. Anita Borude, Prof. Shobha Krishnan Department of Electronics

More information

SPREAD SPECTRUM (SS) SIGNALS FOR DIGITAL COMMUNICATIONS

SPREAD SPECTRUM (SS) SIGNALS FOR DIGITAL COMMUNICATIONS Dr. Ali Muqaibel SPREAD SPECTRUM (SS) SIGNALS FOR DIGITAL COMMUNICATIONS VERSION 1.1 Dr. Ali Hussein Muqaibel 1 Introduction Narrow band signal (data) In Spread Spectrum, the bandwidth W is much greater

More information

Energy Efficiency Optimization in Multi-Antenna Wireless Powered Communication Network with No Channel State Information

Energy Efficiency Optimization in Multi-Antenna Wireless Powered Communication Network with No Channel State Information Vol.141 (GST 016), pp.158-163 http://dx.doi.org/10.1457/astl.016.141.33 Energy Efficiency Optimization in Multi-Antenna Wireless Powered Communication Networ with No Channel State Information Byungjo im

More information

Instantaneous Inventory. Gain ICs

Instantaneous Inventory. Gain ICs Instantaneous Inventory Gain ICs INSTANTANEOUS WIRELESS Perhaps the most succinct figure of merit for summation of all efficiencies in wireless transmission is the ratio of carrier frequency to bitrate,

More information

Performance Enhancement of Multi User Detection for the MC-CDMA

Performance Enhancement of Multi User Detection for the MC-CDMA Performance Enhancement of Multi User Detection for the MC-CDMA Ramabhai Patel M.E., Department of Electronics & Communication, L.D.College of Engineering, Gujarat, India ABSTRACT:The bit error rate of

More information

SNS COLLEGE OF ENGINEERING COIMBATORE DEPARTMENT OF INFORMATION TECHNOLOGY QUESTION BANK

SNS COLLEGE OF ENGINEERING COIMBATORE DEPARTMENT OF INFORMATION TECHNOLOGY QUESTION BANK SNS COLLEGE OF ENGINEERING COIMBATORE 641107 DEPARTMENT OF INFORMATION TECHNOLOGY QUESTION BANK EC6801 WIRELESS COMMUNICATION UNIT-I WIRELESS CHANNELS PART-A 1. What is propagation model? 2. What are the

More information

THE STUDY OF BIT ERROR RATE EVOLUTION IN A MOBILE COMMUNICATIONS SYSTEM USING DS CDMA TECHNOLOGY

THE STUDY OF BIT ERROR RATE EVOLUTION IN A MOBILE COMMUNICATIONS SYSTEM USING DS CDMA TECHNOLOGY Journal of Engineering Studies and Research Volume 18 (2012) No. 2 110 THE STUDY OF BIT ERROR RATE EVOLUTION IN A MOBILE COMMUNICATIONS SYSTEM USING DS CDMA TECHNOLOGY POPA ION * Technical University "Gheorghe

More information

Multiple Access Techniques for Wireless Communications

Multiple Access Techniques for Wireless Communications Multiple Access Techniques for Wireless Communications Contents 1. Frequency Division Multiple Access (FDMA) 2. Time Division Multiple Access (TDMA) 3. Code Division Multiple Access (CDMA) 4. Space Division

More information

ScienceDirect. Optimal Placement of RFID Antennas for Outdoor Applications

ScienceDirect. Optimal Placement of RFID Antennas for Outdoor Applications Available online at www.sciencedirect.com ScienceDirect Procedia Computer Science 34 (2014 ) 236 241 The 9th International Conference on Future Networks and Communications (FNC-2014) Optimal Placement

More information

Lecture 9: Spread Spectrum Modulation Techniques

Lecture 9: Spread Spectrum Modulation Techniques Lecture 9: Spread Spectrum Modulation Techniques Spread spectrum (SS) modulation techniques employ a transmission bandwidth which is several orders of magnitude greater than the minimum required bandwidth

More information

Spread Spectrum. Chapter 18. FHSS Frequency Hopping Spread Spectrum DSSS Direct Sequence Spread Spectrum DSSS using CDMA Code Division Multiple Access

Spread Spectrum. Chapter 18. FHSS Frequency Hopping Spread Spectrum DSSS Direct Sequence Spread Spectrum DSSS using CDMA Code Division Multiple Access Spread Spectrum Chapter 18 FHSS Frequency Hopping Spread Spectrum DSSS Direct Sequence Spread Spectrum DSSS using CDMA Code Division Multiple Access Single Carrier The traditional way Transmitted signal

More information

Use of Multiple-Antenna Technology in Modern Wireless Communication Systems

Use of Multiple-Antenna Technology in Modern Wireless Communication Systems Use of in Modern Wireless Communication Systems Presenter: Engr. Dr. Noor M. Khan Professor Department of Electrical Engineering, Muhammad Ali Jinnah University, Islamabad Campus, Islamabad, PAKISTAN Ph:

More information

Performance Analysis of GSM System Using SUI Channel

Performance Analysis of GSM System Using SUI Channel American Journal of Engineering Research (AJER) e-issn : 232-847 p-issn : 232-936 Volume-3, Issue-12, pp-82-86 www.ajer.org Research Paper Open Access Performance Analysis of GSM System Using SUI Channel

More information

Course Project. Project team forming deadline has passed Project teams will be announced soon Next step: project proposal presentation

Course Project. Project team forming deadline has passed Project teams will be announced soon Next step: project proposal presentation Course Project Project team forming deadline has passed Project teams will be announced soon Next step: project proposal presentation Presentation slides and one-page proposal document are due on Jan 30

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

RFID Multi-hop Relay Algorithms with Active Relay Tags in Tag-Talks-First Mode

RFID Multi-hop Relay Algorithms with Active Relay Tags in Tag-Talks-First Mode International Journal of Networking and Computing www.ijnc.org ISSN 2185-2839 (print) ISSN 2185-2847 (online) Volume 4, Number 2, pages 355 368, July 2014 RFID Multi-hop Relay Algorithms with Active Relay

More information

Quick Introduction to Communication Systems

Quick Introduction to Communication Systems Quick Introduction to Communication Systems p. 1/26 Quick Introduction to Communication Systems Aly I. El-Osery, Ph.D. elosery@ee.nmt.edu Department of Electrical Engineering New Mexico Institute of Mining

More information

Multiple Access Techniques

Multiple Access Techniques Multiple Access Techniques Instructor: Prof. Dr. Noor M. Khan Department of Electrical Engineering, Faculty of Engineering, Mohammad Ali Jinnah University, Islamabad Campus, Islamabad, PAKISTAN Ph: +92

More information

RFID Tag Antennas Mountable on Metallic Platforms

RFID Tag Antennas Mountable on Metallic Platforms Southern Illinois University Carbondale OpenSIUC Books Department of Electrical and Computer Engineering 2-2010 RFID Tag Antennas Mountable on Metallic Platforms Byunggil Yu Kwangwoon University Frances

More information

A survey and tutorial of RFID anti-collision protocols

A survey and tutorial of RFID anti-collision protocols University of Wollongong Research Online Faculty of Informatics - Papers (Archive) Faculty of Engineering and Information Sciences 2010 A survey and tutorial of RFID anti-collision protocols Dheeraj K.

More information

Comparative Analysis of the BER Performance of WCDMA Using Different Spreading Code Generator

Comparative Analysis of the BER Performance of WCDMA Using Different Spreading Code Generator Science Journal of Circuits, Systems and Signal Processing 2016; 5(2): 19-23 http://www.sciencepublishinggroup.com/j/cssp doi: 10.11648/j.cssp.20160502.12 ISSN: 2326-9065 (Print); ISSN: 2326-9073 (Online)

More information

Unit 1 Introduction to Spread- Spectrum Systems. Department of Communication Engineering, NCTU 1

Unit 1 Introduction to Spread- Spectrum Systems. Department of Communication Engineering, NCTU 1 Unit 1 Introduction to Spread- Spectrum Systems Department of Communication Engineering, NCTU 1 What does it mean by spread spectrum communications Spread the energy of an information bit over a bandwidth

More information

Real Time System Applications in Spread Spectrum Communication: A Literature Review

Real Time System Applications in Spread Spectrum Communication: A Literature Review , pp.27-32 http://dx.doi.org/10.14257/ijsip.2014.7.1.03 Real Time System Applications in Spread Spectrum Communication: A Literature Review Shahid Latif Department of Computer Science & IT Sarhad University

More information

RFID. Contents and form. Petr Bureš, Faculty of transportation sciences Czech technical university in Prague

RFID. Contents and form. Petr Bureš, Faculty of transportation sciences Czech technical university in Prague RFID Contents and form Petr Bureš, bures@fd.cvut.cz Faculty of transportation sciences Czech technical university in Prague RFID considerations Critical performance variables in an RFID system are the

More information

Multiple Input Multiple Output (MIMO) Operation Principles

Multiple Input Multiple Output (MIMO) Operation Principles Afriyie Abraham Kwabena Multiple Input Multiple Output (MIMO) Operation Principles Helsinki Metropolia University of Applied Sciences Bachlor of Engineering Information Technology Thesis June 0 Abstract

More information

A New Power Control Algorithm for Cellular CDMA Systems

A New Power Control Algorithm for Cellular CDMA Systems ISSN 1746-7659, England, UK Journal of Information and Computing Science Vol. 4, No. 3, 2009, pp. 205-210 A New Power Control Algorithm for Cellular CDMA Systems Hamidreza Bakhshi 1, +, Sepehr Khodadadi

More information

Orthogonal Frequency Division Multiplexing & Measurement of its Performance

Orthogonal Frequency Division Multiplexing & Measurement of its Performance Available Online at www.ijcsmc.com International Journal of Computer Science and Mobile Computing A Monthly Journal of Computer Science and Information Technology IJCSMC, Vol. 5, Issue. 2, February 2016,

More information

Noise Effective Code Analysis on the Basis of Correlation in CDMA Technology

Noise Effective Code Analysis on the Basis of Correlation in CDMA Technology Manarat International University Studies, 2 (1): 183-191, December 2011 ISSN 1815-6754 @ Manarat International University, 2011 Noise Effective Code Analysis on the Basis of Correlation in CDMA Technology

More information

Load Balancing for Centralized Wireless Networks

Load Balancing for Centralized Wireless Networks Load Balancing for Centralized Wireless Networks Hong Bong Kim and Adam Wolisz Telecommunication Networks Group Technische Universität Berlin Sekr FT5 Einsteinufer 5 0587 Berlin Germany Email: {hbkim,

More information

2. LITERATURE REVIEW

2. LITERATURE REVIEW 2. LITERATURE REVIEW In this section, a brief review of literature on Performance of Antenna Diversity Techniques, Alamouti Coding Scheme, WiMAX Broadband Wireless Access Technology, Mobile WiMAX Technology,

More information

A Measurement-Based Path Loss Model for Mobile-to- Mobile Link Reliability Estimation

A Measurement-Based Path Loss Model for Mobile-to- Mobile Link Reliability Estimation , pp.21-26 http://dx.doi.org/10.14257/astl.2016.123.05 A Measurement-Based Path Loss Model for Mobile-to- Mobile Link Reliability Estimation Fuquan Zhang 1*, Inwhee Joe 2,Demin Gao 1 and Yunfei Liu 1 1

More information

Analysis of Interference & BER with Simulation Concept for MC-CDMA

Analysis of Interference & BER with Simulation Concept for MC-CDMA IOSR Journal of Electronics and Communication Engineering (IOSR-JECE) e-issn: 2278-2834,p- ISSN: 2278-8735.Volume 9, Issue 4, Ver. IV (Jul - Aug. 2014), PP 46-51 Analysis of Interference & BER with Simulation

More information

PAPR Reduction techniques in OFDM System Using Clipping & Filtering and Selective Mapping Methods

PAPR Reduction techniques in OFDM System Using Clipping & Filtering and Selective Mapping Methods PAPR Reduction techniques in OFDM System Using Clipping & Filtering and Selective Mapping Methods Okello Kenneth 1, Professor Usha Neelakanta 2 1 P.G. Student, Department of Electronics & Telecommunication

More information

NLMS Adaptive Digital Filter with a Variable Step Size for ICS (Interference Cancellation System) RF Repeater

NLMS Adaptive Digital Filter with a Variable Step Size for ICS (Interference Cancellation System) RF Repeater , pp.25-34 http://dx.doi.org/10.14257/ijeic.2013.4.5.03 NLMS Adaptive Digital Filter with a Variable Step Size for ICS (Interference Cancellation System) RF Repeater Jin-Yul Kim and Sung-Joon Park Dept.

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

Spread Spectrum: Definition

Spread Spectrum: Definition Spread Spectrum: Definition refers to the expansion of signal bandwidth, by several orders of magnitude in some cases, which occurs when a key is attached to the communication channel an RF communications

More information

STUDY OF ENHANCEMENT OF SPECTRAL EFFICIENCY OF WIRELESS FADING CHANNEL USING MIMO TECHNIQUES

STUDY OF ENHANCEMENT OF SPECTRAL EFFICIENCY OF WIRELESS FADING CHANNEL USING MIMO TECHNIQUES STUDY OF ENHANCEMENT OF SPECTRAL EFFICIENCY OF WIRELESS FADING CHANNEL USING MIMO TECHNIQUES Jayanta Paul M.TECH, Electronics and Communication Engineering, Heritage Institute of Technology, (India) ABSTRACT

More information

Prepared for the Engineers of Samsung Electronics RF transmitter & power amplifier

Prepared for the Engineers of Samsung Electronics RF transmitter & power amplifier Prepared for the Engineers of Samsung Electronics RF transmitter & power amplifier Changsik Yoo Dept. Electrical and Computer Engineering Hanyang University, Seoul, Korea 1 Wireless system market trends

More information

Comparative Study of OFDM & MC-CDMA in WiMAX System

Comparative Study of OFDM & MC-CDMA in WiMAX System IOSR Journal of Electronics and Communication Engineering (IOSR-JECE) e-issn: 2278-2834,p- ISSN: 2278-8735.Volume 9, Issue 1, Ver. IV (Jan. 2014), PP 64-68 Comparative Study of OFDM & MC-CDMA in WiMAX

More information

Wireless systems. includes issues of

Wireless systems. includes issues of Wireless systems includes issues of hardware processors, storage, peripherals, networks,... representation of information, analog vs. digital, bits & bytes software applications, operating system organization

More information

Comparison of ML and SC for ICI reduction in OFDM system

Comparison of ML and SC for ICI reduction in OFDM system Comparison of and for ICI reduction in OFDM system Mohammed hussein khaleel 1, neelesh agrawal 2 1 M.tech Student ECE department, Sam Higginbottom Institute of Agriculture, Technology and Science, Al-Mamon

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

TRANSMITING JPEG IMAGE OVER USING UPA AND CHOTIC COMMUNICATION

TRANSMITING JPEG IMAGE OVER USING UPA AND CHOTIC COMMUNICATION TRANSMITING JPEG IMAGE OVER MIMO USING UPA AND CHOTIC COMMUNICATION Pravin B. Mali 1, Neetesh Gupta 2,Amit Sinhal 3 1 2 3 Information Technology 1 TIT, Bhopal 2 TIT, Bhopal 3 TIT, Bhopal 1 pravinmali598@gmail.com

More information

Interference Reduction in Overlaid WCDMA and TDMA Systems

Interference Reduction in Overlaid WCDMA and TDMA Systems JOURNAL OF NETWORKS, VOL. 6, NO. 4, APRIL 2011 587 Interference Reduction in Overlaid WCDMA and TDMA Systems Maan A. S. Al-Adwany 1 & Amin M. Abbosh 2 1 University of Mosul/ College of Electronics Eng.,

More information

Multiplexing Module W.tra.2

Multiplexing Module W.tra.2 Multiplexing Module W.tra.2 Dr.M.Y.Wu@CSE Shanghai Jiaotong University Shanghai, China Dr.W.Shu@ECE University of New Mexico Albuquerque, NM, USA 1 Multiplexing W.tra.2-2 Multiplexing shared medium at

More information

Turbo-coding of Coherence Multiplexed Optical PPM CDMA System With Balanced Detection

Turbo-coding of Coherence Multiplexed Optical PPM CDMA System With Balanced Detection American Journal of Applied Sciences 4 (5): 64-68, 007 ISSN 1546-939 007 Science Publications Turbo-coding of Coherence Multiplexed Optical PPM CDMA System With Balanced Detection K. Chitra and V.C. Ravichandran

More information

Multiple Access Techniques

Multiple Access Techniques Multiple Access Techniques EE 442 Spring Semester Lecture 13 Multiple Access is the use of multiplexing techniques to provide communication service to multiple users over a single channel. It allows for

More information

Advances in SAW Devices for Sensing and RFID Applications

Advances in SAW Devices for Sensing and RFID Applications Advances in SAW Devices for Sensing and RFID Applications Passive Wireless Sensor Technology Workshop 6-7 June, 2012 - La Jolla, California Paul Hartmann RF SAW, Inc. Dallas, Texas 1 Passive SAW Wireless

More information

Compressive Sensing Based Detection Strategy For Multiple Access Spatial Modulation Channel

Compressive Sensing Based Detection Strategy For Multiple Access Spatial Modulation Channel Compressive Sensing Based Detection Strategy For Multiple Access Spatial Modulation Channel Pooja Chandankhede, Dr. Manish Sharma ME Student, Dept. of E&TC, DYPCOE, Savitribai Phule Pune University, Akurdi,

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

On the Uplink Capacity of Cellular CDMA and TDMA over Nondispersive Channels

On the Uplink Capacity of Cellular CDMA and TDMA over Nondispersive Channels On the Uplink Capacity of Cellular CDMA and TDMA over Nondispersive Channels Hikmet Sari (1), Heidi Steendam (), Marc Moeneclaey () (1) Alcatel Access Systems Division () Communications Engineering Laboratory

More information

SC - Single carrier systems One carrier carries data stream

SC - Single carrier systems One carrier carries data stream Digital modulation SC - Single carrier systems One carrier carries data stream MC - Multi-carrier systems Many carriers are used for data transmission. Data stream is divided into sub-streams and each

More information

ITM 1010 Computer and Communication Technologies

ITM 1010 Computer and Communication Technologies ITM 1010 Computer and Communication Technologies Lecture #14 Part II Introduction to Communication Technologies: Digital Signals: Digital modulation, channel sharing 2003 香港中文大學, 電子工程學系 (Prof. H.K.Tsang)

More information

DESIGN AND IMPLEMENTATION OF WCDMA RAKE RECEIVER USED IN 3G WIRELESS COMMUNICATION

DESIGN AND IMPLEMENTATION OF WCDMA RAKE RECEIVER USED IN 3G WIRELESS COMMUNICATION http:// DESIGN AND IMPLEMENTATION OF WCDMA RAKE RECEIVER USED IN 3G WIRELESS COMMUNICATION Kapil Sahu 1, Sarita Boolchandani 2, Brijesh Kumar 3 1,2,3 E & C Dept., Vivekananda Institute of Technology-East,

More information

Network Management System for Telecommunication and Internet Application

Network Management System for Telecommunication and Internet Application Network Management System for Telecommunication and Internet Application Gerd Bumiller GmbH Unterschlauersbacher-Hauptstr. 10, D-906 13 Groahabersdorf, Germany Phone: +49 9105 9960-51, Fax: +49 9105 9960-19,

More information

NTT DOCOMO Technical Journal. 1. Introduction. Tatsuhiko Yoshihara Hiroyuki Kawai Taisuke Ihara

NTT DOCOMO Technical Journal. 1. Introduction. Tatsuhiko Yoshihara Hiroyuki Kawai Taisuke Ihara Base Station Antenna Multi-band The 700 MHz band has recently been allocated to handle the rapid increases in mobile communication traffic. Space limitations make it difficult to add new antennas where

More information

Satellite Telemetry Data Transmission Immunity from the ASI and Jamming Using DSSS Optimized PN Codes in DS-CDMA Systems

Satellite Telemetry Data Transmission Immunity from the ASI and Jamming Using DSSS Optimized PN Codes in DS-CDMA Systems IOSR Journal of Electronics and Communication Engineering (IOSR-JECE) e-issn: 2278-2834,p- ISSN: 2278-8735.Volume 12, Issue 1, Ver. II (Jan.-Feb. 2017), PP 01-12 www.iosrjournals.org Satellite Telemetry

More information

A Research Concept on Bit Rate Detection using Carrier offset through Analysis of MC-CDMA SYSTEM

A Research Concept on Bit Rate Detection using Carrier offset through Analysis of MC-CDMA SYSTEM Available Online at www.ijcsmc.com International Journal of Computer Science and Mobile Computing A Monthly Journal of Computer Science and Information Technology ISSN 2320 088X IMPACT FACTOR: 5.258 IJCSMC,

More information

A MULTICARRIER CDMA ARCHITECTURE BASED ON ORTHOGONAL COMPLEMENTARY CODES FOR NEW GENERATION OF WIDEBAND WIRELESS COMMUNICATIONS

A MULTICARRIER CDMA ARCHITECTURE BASED ON ORTHOGONAL COMPLEMENTARY CODES FOR NEW GENERATION OF WIDEBAND WIRELESS COMMUNICATIONS A MULTICARRIER CDMA ARCHITECTURE BASED ON ORTHOGONAL COMPLEMENTARY CODES FOR NEW GENERATION OF WIDEBAND WIRELESS COMMUNICATIONS BY: COLLINS ACHEAMPONG GRADUATE STUDENT TO: Dr. Lijun Quin DEPT OF ELECTRICAL

More information

IEEE g

IEEE g IEEE P802.15 Wireless Personal Area Networks Project Title IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) TG4g Coexistence Assurance Document Date Submitted April 2011 Source Re:

More information

Advanced Communication Systems -Wireless Communication Technology

Advanced Communication Systems -Wireless Communication Technology Advanced Communication Systems -Wireless Communication Technology Dr. Junwei Lu The School of Microelectronic Engineering Faculty of Engineering and Information Technology Outline Introduction to Wireless

More information

Citation Electromagnetics, 2012, v. 32 n. 4, p

Citation Electromagnetics, 2012, v. 32 n. 4, p Title Low-profile microstrip antenna with bandwidth enhancement for radio frequency identification applications Author(s) Yang, P; He, S; Li, Y; Jiang, L Citation Electromagnetics, 2012, v. 32 n. 4, p.

More information

UTILIZATION OF AN IEEE 1588 TIMING REFERENCE SOURCE IN THE inet RF TRANSCEIVER

UTILIZATION OF AN IEEE 1588 TIMING REFERENCE SOURCE IN THE inet RF TRANSCEIVER UTILIZATION OF AN IEEE 1588 TIMING REFERENCE SOURCE IN THE inet RF TRANSCEIVER Dr. Cheng Lu, Chief Communications System Engineer John Roach, Vice President, Network Products Division Dr. George Sasvari,

More information

JOURNAL OF INTERNATIONAL ACADEMIC RESEARCH FOR MULTIDISCIPLINARY Impact Factor 1.393, ISSN: , Volume 2, Issue 3, April 2014

JOURNAL OF INTERNATIONAL ACADEMIC RESEARCH FOR MULTIDISCIPLINARY Impact Factor 1.393, ISSN: , Volume 2, Issue 3, April 2014 COMPARISON OF SINR AND DATA RATE OVER REUSE FACTORS USING FRACTIONAL FREQUENCY REUSE IN HEXAGONAL CELL STRUCTURE RAHUL KUMAR SHARMA* ASHISH DEWANGAN** *Asst. Professor, Dept. of Electronics and Technology,

More information

Combining techniques graphical representation of bit error rate performance used in mitigating fading in global system for mobile communication (GSM)

Combining techniques graphical representation of bit error rate performance used in mitigating fading in global system for mobile communication (GSM) JEMT 5 (2017) 1-7 ISSN 2053-3535 Combining techniques graphical representation of bit error rate performance used in mitigating fading in global system for mobile communication (GSM) Awofolaju T. T.* and

More information

Generation of Orthogonal Logistic Map Sequences for Application in Wireless Channel and Implementation using a Multiplierless Technique

Generation of Orthogonal Logistic Map Sequences for Application in Wireless Channel and Implementation using a Multiplierless Technique Generation of Orthogonal Logistic Map Sequences for Application in Wireless Channel and Implementation using a Multiplierless Technique KATYAYANI KASHYAP 1, MANASH PRATIM SARMA 1, KANDARPA KUMAR SARMA

More information

SNR Performance Analysis of Rake Receiver for WCDMA

SNR Performance Analysis of Rake Receiver for WCDMA International Journal of Computational Engineering & Management, Vol. 15 Issue 2, March 2012 www..org SNR Performance Analysis of Rake Receiver for WCDMA 62 Nikhil B. Patel 1 and K. R. Parmar 2 1 Electronics

More information