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
UNITII 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
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.
- H Taub, D L Schilling, G Saha, ―Principles of Communication Systems‖ 3/e, TMH 2007
- S. Haykin ―Digital Communications‖ John Wiley 2005
- B.P.Lathi, ―Modern Digital and Analog Communication Systems‖, 3rd edition, Oxford University Press, 2007
- H P Hsu, Schaum Outline Series – ―Analog and Digital Communications‖ TMH 2006
- B.Sklar, Digital Communications Fundamentals and Applications‖ 2/e Pearson Education 2007.