EC2311 COMMUNICATION ENGINEERING
AIMTo introduce the concepts of communication systems engineering using wire and wireless medium
OBJECTIVES To introduce different methods of analog communication and their significance
To introduce Digital Communication methods for high bit rate transmission
To introduce the concepts of source and line coding techniques for enhancing rating of
transmission of minimizing the errors in transmission.
To introduce MAC used in communication systems for enhancing the number of users.
To introduce various media for digital communication
UNIT I ANALOG COMMUNICATION 9AM – Frequency spectrum – vector representation – power relations – generation of AM – DSB,
DSB/SC, SSB, VSB AM Transmitter & Receiver; FM and PM – frequency spectrum – power
relations : NBFM & WBFM, Generation of FM and DM, Amstrong method & Reactance modulations :
FM & PM frequency.
UNIT II DIGITAL COMMUNICATION 9Pulse modulations – concepts of sampling and sampling theormes, PAM, PWM, PPM, PTM,
quantization and coding : DCM, DM, slope overload error. ADM, DPCM, OOK systems – ASK, FSK,
PSK, BSK, QPSK, QAM, MSK, GMSK, applications of Data communication.
UNIT III SOURCE CODES, LINE CODES & ERROR CONTROL (Qualitative only) 9Primary communication – entropy, properties, BSC, BEC, source coding : Shaum, Fao, Huffman
coding : noiseless coding theorum, BW – SNR trade off codes: NRZ, RZ, AMI, HDBP, ABQ, MBnB
codes : Efficiency of transmissions, error control codes and applications: convolutions & block codes.
UNIT IV MULTIPLE ACCESS TECHNIQUES 9SS&MA techniques : FDMA, TDMA, CDMA, SDMA application in wire and wireless communication :
Advantages (merits) :
UNIT V SATELLITE, OPTICAL FIBER – POWERLINE, SCADA 9Orbits : types of satellites : frequency used link establishment, MA techniques used in satellite
communication, earth station; aperture actuators used in satellite – Intelsat and Insat: fibers – types:
sources, detectors used, digital filters, optical link: power line carrier communications: SCADA
TOTAL : 45 PERIODS
TEXT BOOKS1.Taub & Schiling “Principles of communication systems” Tata McGraw hill 2007
2.J.Das “Principles of digital communication” New Age International, 1986
REFERENCES1. Kennedy and Davis “Electronic communication systems” Tata McGraw hill, 4th
2. Sklar “Digital communication fundamentals and applications“ Pearson Education,
3. Bary le, Memuschmidt, digital Communication, Kluwer Publication, 2004.
4. B.P.Lathi “Modern digital and analog communication systems” Oxford University