EC2311 COMMUNICATION ENGINEERING

AIM

To 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 9

AM – 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 9

Pulse 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) 9

Primary 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 9

SS&MA techniques : FDMA, TDMA, CDMA, SDMA application in wire and wireless communication :
Advantages (merits) :
53

UNIT V SATELLITE, OPTICAL FIBER – POWERLINE, SCADA 9

Orbits : 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 BOOKS

1.Taub & Schiling “Principles of communication systems” Tata McGraw hill 2007
2.J.Das “Principles of digital communication” New Age International, 1986

REFERENCES

1. Kennedy and Davis “Electronic communication systems” Tata McGraw hill, 4th
edition, 1993.
2. Sklar “Digital communication fundamentals and applications“ Pearson Education,
2001
3. Bary le, Memuschmidt, digital Communication, Kluwer Publication, 2004.
4. B.P.Lathi “Modern digital and analog communication systems” Oxford University
Press, 1998.