EC8395     COMMUNICATION ENGINEERING     L T P C 3  0 0 3

OBJECTIVES:

• To  introduce the relevance of this course to the existing technology through demonstrations, case  studies,  simulations,  contributions  of  scientist,  national/international  policies  with  a futuristic vision along with socio-economic impact and issues
• To study the various analog and digital modulation techniques
• To study the principles behind information theory and coding
• To study the various digital communication techniques

UNIT I     ANALOG MODULATION     9

Amplitude Modulation –AM, DSBSC, SSBSC, VSB –PSD, modulators and demodulators –Angle modulation –PM and FM –PSD, modulators and demodulators –Superheterodyne receivers

UNIT II     PULSE MODULATION     9

Low  pass  sampling  theorem –Quantization –PAM –Line  coding –PCM,  DPCM, DM,  and ADPCM And ADM, Channel Vocoder -Time Division Multiplexing, Frequency Division Multiplexing  

UNIT III     DIGITAL MODULATION AND TRANSMISSION     9

Phase  shift  keying –BPSK,  DPSK,  QPSK –Principles  of  M-ary  signaling  M-ary  PSK  &  QAM –Comparison, ISI –Pulse shaping –Duo binary encoding –Cosine filters –Eye pattern, equalizers

UNIT IV     INFORMATION THEORY AND CODING     9

Measure  of  information –Entropy –Source  coding  theorem –Shannon–Fano  coding,  Huffman Coding,  LZ  Coding –Channel  capacity –Shannon-Hartley  law –Shannon's  limit –Error  control codes –Cyclic  codes,  Syndrome  calculation –Convolution  Coding,  Sequential  and  Viterbi decoding

UNIT V     SPREAD SPECTRUM AND MULTIPLE ACCESS     9

PN  sequences –properties –m-sequence –DSSS –Processing  gain,  Jamming –FHSS –Synchronisation and tracking –Multiple Access –FDMA, TDMA, CDMA,

TOTAL: 45 PERIODS

OUTCOMES:

At the end of the course, the student should be able to:

• Ability to comprehend and appreciate the significance and role of this course in the present contemporary world
• Apply analog and digital communication techniques.
• Use data and pulse communication techniques.
• Analyze Source and Error control coding.

TEXT BOOKS:

1. H Taub, D L Schilling, G Saha, ―Principles of Communication Systems‖ 3/e, TMH 2007

2. S. Haykin ―Digital Communications‖ John Wiley 2005

REFERENCES:

1. B.P.Lathi, ―Modern Digital and Analog Communication Systems‖, 3rdedition, Oxford University Press, 2007

2. H P Hsu, Schaum Outline Series –―Analog and Digital Communications‖ TMH 2006

3. B.Sklar,   Digital   Communications   Fundamentals   and   Applications‖   2/e   Pearson Education 2007.