SRM UNIVERSITY FACULTY OF ENGINEERING AND TECHNOLOGY SCHOOL OF ELECTRONICS AND ELECTRICAL ENGINEERING DEPARTMENT OF ECE COURSE PLAN Course Code : EC0210 Course Title : COMMUNICATION THEORY Semester : IV Course Time : JANUARY MAY 2011 Location : S.R.M.E.C Faculty Details Sec Name Office Office hour Mail id A Ms. S. Ranjani TP 13 th Floor 8.30 4.00 niran12@ktr.srmuniv.ac.in B Mrs. B. Priyalakshmi TP 13 th Floor 8.30 4.00 priyalakshmi@ktr.srmuniv.ac.in Required Text Books: 1. Communication Systems, 4 th edition John Wiley & sons Simon Haykins 2. Communication Systems Analog & Digital:, Tata McGraw Hill, 1995 R.P. Singh & S.D.sapre Web resources www.nptel.iitm.ac.in/courses/iit...communication/.../ www.digitalsignallabs.com/ http://www.techonline.com/ Prerequisite Objectives: : Nil 1.To learn and understand the various Amplitude modulation and demodulation systems 2. To learn and understand the various Angle modulation and demodulation systems 3.To learn and understand the Basics of noise theory and performance of the various receivers 4. To learn and understand the fundamentals of information theory Assessment Details Cycle Test I Surprise Test I Cycle Test II Model Exam Attendance : 10 Marks : 5 Marks : 10 Marks : 15 Marks : 5 Marks Tentative Test Schedule S.No. DATE TEST PORTIONS DURATION 1 2 nd week of February 2011 Cycle Test 1 Session 1 to 14 2 Periods 2 2 nd week of March 2011 Cycle Test 2 Session 15 to 28 2 Periods
3 3 rd week of Aprill 2011 Model Test Session 1 to 45 3 Hours Outcomes Students who have successfully completed this course Course outcome Program outcome 1. To learn and understand various amplitude modulation and demodulation system 2. To learn and understand various angle modulation and demodulation systems 3. To learn and understand basics of noise theory and various receiver performances 4. To learn and understand the fundamentals of information theory d) Graduates will design a system, component or process as per needs and education and ability for life long learning. ability to participate and try Detailed Session Plan AMPLITUDE MODULATION SYSTEMS Need for modulation AM modulation systems Modulation index Phase diagram Power relations Efficiency Spectrum diagram of AM, DSB SC & SSB systems.generation of AM Waves: Square law modulator Product Modulator Switching Modulator. Detection of AMwaves: Envelope detector Coherent detector. FDM. Session Topics to be covered Text Book Instruction Program Outcome Objective 1 Need for modulation, AM modulation systems 2 Modulation index, phasor diagram, power relation & efficiency 3 Spectrum diagram of AM, DSB SC, SSB,VSB 90 105 4 product modulator 5 Square modulator 6 Switching modulator 7 Envelope detector 8 Coherent detector 9 FDM 1.To learn and understand various amplitude modulation and demodulation system d) Graduates will design a system, component or process as per needs and education and ability for life long learning. ANGLE MODULATION Frequency Modulation Transmission Bandwidth of FM signals Frequency spectrum Phase Modulationrelationship between FM & PM Narrow Band FM & Wide Band FM. Generation of FM Waves: Direct method Indirect method of FM generation.
Detection of FM waves: Ratio Detector PLL FM demodulator Super heterodyne Receiver 10 Unit II Frequency modulation, transmission bandwidth of FM signals, frequency spectrum 12 Phase modulation, relationship between PM & FM 109 142 13 Narrow band FM 14 Wide band FM 15 Direct method of FM generation 16 Indirect method of FM dogeneration 17 Ratio detector 18 PLL FM demodulator 19 Super heterodyne receiver 2. To learn and understand various angle modulation and demodulation systems d) Graduates will design a system, component or process as per needs and education and ability for life long learning. NOISE THEORY Sources of Noise Shot Noise Resistor Noise Calculation of Noise in Linear systems Noise bandwidth Available Power Noise temperature Noise in two port networks Noise figure Measurement of Noise figure Signal in presence of noise Narrow Band noise 20 Sources of noise R.Singh & S.D. sapre Chapter 4 193 to 233 21 shot noise, resistor noise 22 Calculation of noise of Linear dosystem 23 Noise bandwidth, available dopower 24 Noise temperature, Noise in two doport networks 25 Noise figure 26 Measurement of noise figure in dopresence of noise 27 Signal in presence of noise 28 Narrow band noise 3. To learn and understand basics of noise theory
NOISE PERFORMANCE OF AM & FM RECEIVERS Noises in AM receiver threshold effect Noise in FM receivers capture effect FM threshold effect Pre emphasis & De emphasis in FM. 29 Noise in CW modulation systems 30 Noise in Linear systems 31 Noise in AM receivers 32 Threshold effect 34 Single tone modulation, FM threshold effect 130 157 33 Noise in FM receivers 35 FM threshold reduction 36 Pre emphasis To learn and understand basics of noise theory and various receiver performances demonstrate knowledge of mathematics, science and demonstrate the ability to solve engineering problems. ability to participate and try to succeed in competitive 37 De emphasis INFORMATION THEORY Information & Entropy Rate of information Discrete memory less channel Joint Entropy & Conditional Entropy Mutual information Channel Capacity Shannon s Theorem Continuous Channel Shannon Hartley Theorem BW S/N Trade off. 38 R.Singh & S.D. Information & Entropy sapre Chapter 10 503 541 39 Rate of information 40 Discrete memory less channel 41 Joint & conditional entropy 43 Channel capacity, Shannon theorem 44 Continous channel, Shannon Hartley theorem 42 Mutual information 45 BW S/N trade off To learn and understand the fundamentals of information theory demonstrate knowledge of mathematics, science and demonstrate the ability to solve engineering problems. education and ability for life long learning. ability to participate and try to succeed in competitive