SRM UNIVERSITY FACULTY OF ENGINEERING AND TECHNOLOGY DEPARTMENT OF ECE COURSE PLAN Course Code : EC0307 Course Title : DIGITAL COMMUNICATION Semester : V Course Time : JULY NOVEMBER 2012 Location : S.R.M.TECH PARK Faculty Details Sec. Name Office Office hour Mail id A Ms.T.Ramya 1003A) Day1-6, Day3-1, Day4-6,Day5-2 ramya.t@ktr.srmuniv.ac.in B Mrs.S.Krithiga 1203A) Day1-1&4,Day3-7, Day5-3, krithiga.s@ktr.srmuniv.ac.in C Mr.R.Ramesh 12S2) Day1-4 Day2-4 &6 Day4-6 rameshjr.r@ktr.srmuniv.ac.in D E F Mr.S.Manikandaswamy Mrs.SabithaGauni Mrs.A.Vinnarasi 1106A) Tech park TP12S5) Tech park TP1003A) Day1-3,Day2-2, Day3-4,Day5-6 Day2-4, Day3-1&6 Day4-2 Day1-7,Day2-2, Day3-3 Day4-1 manikandaswamy.s@ktr.srmun iv.ac.in sabitha.g@ktr.srmuniv.ac.in vinnarasi.a@ktr.srmunv.ac.in Required Text Books 1. Systems 3/e John Wiley & sons,1998 2. Taub & Schilling, Principle of Systems 2/e. REFERENCE BOOKS 1. John G. Proakis, "Digital ", McGraw Hill Inc 2001 2. Bernard Sklar, "Digital, Fundamentals and Application", Pearson Education Asia, 2nd Edition, 2001 Web Resources: www.comsoc.org/tutorials/subjects/digital.html, www.wirelesscafe.wordpress.com www.complextoreal.com/tutorial.htm, http://nptel.iitm.ac.in Prerequisite : EC0210 Theory Objectives: 1. To understand Pulse modulation and discuss the process of sampling,quantization and coding 2. To learn base band pulse transmission Page 1 of 7
3. To become familiar with pass band data transmission methods. Assessment Details Test Schedule Cycle Test I : 10 Marks Surprise Test I : 5 Marks Cycle Test II : 10 Marks Model Exam : 20 Marks Attendance : 05Marks S. DATE TEST PORTIONS DURATION 1 Last week of July 2012 Cycle Test-1 1 to 9 2 Periods 2 Last week of September Cycle Test-2 10 to 27 2 Periods 2012 3 First week of October 2012 Model Test 1 to 45 3 Hrs Outcomes Students who have successfully completed this course 1. Pulse modulation and discuss the process of sampling, quantization and coding that are fundamental to the digital transmission of analog signals 2. Base band pulse transmission which deals with the transmission of pulse amplitude modulated signals in their base band form 3. Pass band data transmission methods Program outcome mathematics, sciences the ability to design and conduct the ability to design a system, j) Graduate will develop confidence for self education and ability for life long learning. Detailed Plan PULSE MODULATION Sampling Process-Aliasing-Natural Sampling-Flat Sampling-PAM-PWM-PPM-Bandwidth-Noise trade off- TDM 1 Sampling theorem (LPF) Wiley & sons, 1998, 6.2, Page 352-357 2 Aliasing, 6.2, Page 356-357 3 Natural and Flat sampling 6.3, Page 357-359 Pulse modulation and mathematics, science mathematics, science mathematics, science Page 2 of 7
4 PAM ( Generation and Detection) 5. PWM (Generation and Detection) 6. PPM(Generation and Detection) 6.3, Page 360-362 6.5, Page 364-373 6.5, Page 364-373 7 Bandwidth 6.6, Page 373 8 Noise trade off 6.6, Page 373 9 TDM 6.4, Page 362-364 discuss the process of sampling, quantization and coding that are fundamental to the digital transmission of analog signals DIGITAL MODULATION SYSTEMS Quantization of Signals-Quantization error-pcm Systems-Noise Considerations in PCM system- Over all Signal-to-noise ratio for PCM system-threshold effect-channel Capacity-Virtues, Limitations & Modification of PCM system-pcm Signal Multiplexing- Differential PCM- Delta Modulation-Noise Considerations in Delta Modulation- SNR Calculations-Comparison of PCM, DPCM & DM. 10 Quantization of signals 11 Quantization error Problems Wiley & sons, 1998 6.7, Page 374 6.7, Page 375 12 PCM System 6.8, Page 378-387 13 Noise in PCM, Overall SNR and problem 6.9, Page 387-388 1. Pulse modulation and discuss the process of sampling, quantization and coding that are fundamental to the digital transmission of analog signals 2. Base band pulse transmission which deals with the transmission of pulse amplitude modulated signals in their base band form the ability the ability the ability the ability the ability the ability the ability the ability Page 3 of 7
14 Threshold effect in PCM 15 Channel capacity limitations and modification of PCM systems 16 PCM signal multiplexing (TDM)- DPCM 17 Delta modulation and noise in DM 18 SNR calculation, Comparison of PCM,DPCM and DM 6.9, Page 388-389 6.10, Page 390-391 6.8, Page 386-387 6.11, Page 391-394 6.14, Page 404-405 BASE BAND PULSE TRANSMISSION Matched filter receiver-probability error of the Matched filter-intersymbol interference-nyquist criterion for distortion less base band transmission-correlative coding-base band M-ary PAM transmission-eye pattern. the ability the ability the ability the ability the ability 19 Matched filter,probability error of matched filter 20 ISI,Derivation of expression 21 Details about Roll off factor 22 Nyquist Criterion for distortion less base band transmission Wiley & sons, 1998 7.2, Page 413-418 7.4, Page 424-427 7.3, Page 418-424 7.5, Page 427-434 23 Correlative coding 7.6, Page 434-435 2. Base band pulse transmission which deals with the transmission of pulse amplitude modulated signals in their base band form the ability Page 4 of 7
24 Duo binary 7.6, Page 435-440 25 Modified Duo binary scheme 26 Base band M-ary PAM transmitter 7.6, Page 441-446 7.7, Page 446-448 27 Eye pattern 7.10, Page 461-464 PASS BAND DATA TRANSMISSION Pass Band Transmission Model-Generation, Detection, Signal Space Diagram, Probability of Error of BFSK, BPSK, QPSK Schemes- Comparison of BFSK, BPSK & QPSK. 28 Pass band transmission model- Generation 29 Detection signal space diagram 30 BFSK Coherent Derivation of Probability of error Wiley & sons, 1998 Wiley & sons, 1998, 8.2, Page 474-478 8.6, Page 491-495 8.12, Page 511-516 31 BFSK non coherent 8.16, Page 539-540 32 BPSK-Probability of error, signal space diagram 33 BPSK- Transmitter and receiver 34 QPSK Probability of error 8.11, Page 508-510 8.12, Page 510-511 13,Page 516-521. Pass band data transmission methods the ability the ability the ability the ability the ability the ability the ability the ability the ability the ability Page 5 of 7
35 QPSK- Transmitter and receiver 36 Comparison of BFSK,BPSK and QPSK 8.14, Page 522-523 8.18, Page 544-546 Page 6 of 7 INTRODUCTION TO SPREAD SPECTRUM TECHNIQUES Introduction-Discrete Sequence Spread Spectrum technique-use of Spread Spectrum with CDMA- Ranging Using Discrete Sequence Spread Spectrum-Frequency Hopping Spread Spectrum- Generation & Characteristics of PN Sequence-Acquisition of FH a Signal-Tracking of FH a signal- Acquisition of a DS Signal-Tracking of a DS signal. 37 Introduction and definition of Spread spectrum 38 Generation of PN Sequence and its applications Taub & Schilling, Principle of Systems 2/e. 17.1, Page 720-721 17.6, Page 732-738 39 DS-SS transmitter 17.2, Page 721-724 40 DS_SS Receiver 17.2, Page 724-726 41 FHSS- Slow, Fast 17.5, Page 729-732 42 Acquisition of FH signal 43 Tracking of FH signal 44 Acquisition of DS signal 17.7, Page 738-741 17.8, Page 741-74 17.9, Page 744-745. Pass band data transmission methods the ability j) Graduate will develop confidence for self education and ability for life long learning the ability the ability the ability the ability the ability the ability 45 Tracking of DS
signal 17.10, Page 745-748 the ability Page 7 of 7