2K6EE 505 : MODERN COMMUNICATION SYSTEMS

Module I (16 hours)
Analog modulation schemes: Super heterodyne receivers-receiver parameters-AM receivers-IF and its selectionAGC, AM demodulator circuits-SSB receivers-demodulation of SSB, receiver types-FM receiver-FM demodulators, FM noise suppression- Pulse modulation, principle of PAM, PWM,PPM modulation and demodulation-circuits. Digital modulation schemes: Coherent binary schemes: ASK,FSK,PSK,MSK, coherent M-ray schemes, calculation of average probability of error for different modulation schemes, Power spectra of digital modulated signals, performance comparison of different modulation schemes-PCM, DPCM, Delta modulation, generation and demodulation- Multiplexing- TDM, FDM, WDM.
Module II (12 hours)
Principle of TV communication: Theory of interlaced scanning- composite video waveforms-synchronising signal standards as per PAL625 line system-bandwidth-Block diagram of monochrome transmitter and receiver. Colour TV signal standards-principle of NTSC, PAL and SECAM encoders/ decoders-Block diagram of transmitters and receivers. Principles of Radar: Radar frequencies-Radar equation-Transmitter and receiver(Block diagram approach), Pulsed, CW, FMCW, MTI, and tracking radars.
Module III (12 hours)
Principles of optical communication system: LED and LASER diode- Principle of operation- optical detectors-pin detector-APD- optical fibres- step index- graded index- single mode and multimode Principles of mobile communication systems: operation of cellular system- improving capacity in cellular systems-frequency re usage- hand off strategies- cell splitting- sectoring channel assignment strategies- call blocking in cellular networks.
Module IV (12 hours)
Satellite communication: Orbit of communication satellite-satellite constellation- orbital parameters- orbital perturbations- geostationary orbits-low earth and medium orbits- frequency selection- RF links- propagation characteristics- modulation methods- coding- multiple access spacecraft- antennas-transponders-inter satellite linklink power budget- earth station interference- special spectrumcommunication general concepts- frequency hopping- frequency hopping transmitter- frequency hopping receiver- time hopping- antijam consideration-CDMA.

Text books & References
1. Principles of Communication systems, George Kennedy, TMH.
2 Dennis Roody and john Coolen, Electronic communication, Prentice Hall..
3. Bernard sklar, Digital communications Fundamentals and applications, Pearson
4. Dennis Roddy, Satellite Communication, PHI.
5. TS Rappaport, Wireless digital communications, Principles and Practice, Pearson
6. R. R. Gulati, Monochrome and colour Television, John Wiley.
7. Skolnik, Introduction to Radar Systems
8. John Senior, Optical Fiber Communications, PHI
9. RE Ziemer , WH Tranter, Principles of Communication, 5th edition, John Wiley.
10. BP Lathi, Modern Digital and Analog Communication system, 3rd edition, Oxford.
11. Wayne Tomasi, Modern Electronic Communication system, Pearson
12. Simon, Hindey, Lindsey, Digital Communication Techniques, PHI
13. John G Proakis, Digital Communication, MGH
14. WL Prichard, Satellite Communication system engineering, Pearson