Digital Communication (B.Tech)

Sampling, PCM, digital modulation techniques, information theory and error control coding.

6 MonthsDuration 5Chapters26Topics

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Syllabus · पाठ्यक्रम

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01Unit 1: Waveform Coding 6 topics

Sampling and quantisation
Pulse code modulation
Quantisation noise and SQNR
Companding: mu-law and A-law
DPCM, delta and adaptive delta modulation
Line codes

02Unit 2: Baseband Transmission 5 topics

Inter-symbol interference
Nyquist criterion and raised-cosine pulses
Eye pattern
Matched filter receiver
Equalisation

03Unit 3: Digital Modulation Techniques 5 topics

ASK, FSK and BPSK
QPSK and MSK
M-ary PSK and QAM
Coherent and non-coherent detection
Bandwidth and probability of error comparison

04Unit 4: Information Theory 5 topics

Information and entropy
Information rate
Mutual information and channel capacity
Shannon-Hartley theorem
Shannon-Fano and Huffman coding

05Unit 5: Error Control Coding 5 topics

Linear block codes and Hamming distance
Hamming codes
Cyclic codes
Convolutional codes
Viterbi decoding

About

You will be able to

Explain sampling, quantisation, PCM, DPCM and delta modulation
Explain ISI, Nyquist pulse shaping, eye patterns and matched filters
Compare ASK, FSK, PSK, QPSK and QAM in bandwidth and error performance
Calculate entropy, information rate and channel capacity and apply source coding
Encode and decode linear block, cyclic and convolutional codes

Who it is for

B.Tech Electronics & Communication Engineering students of Semester 6 under AKTU
Students preparing for AKTU examinations and GATE communications

What you need

Communication Engineering (Semester 4) and basic probability

Questions

Which syllabus is followed?

The current AKTU (Dr. A.P.J. Abdul Kalam Technical University, Lucknow) B.Tech syllabus of Digital Communication (Electronics & Communication Engineering, Semester 6). If your university or college follows a different syllabus, the centre teaches from your own university syllabus.

How is the subject examined?

AKTU assesses it through sessional tests, assignments and attendance, and an end-semester university examination; the centre covers every unit with theory, derivations and numericals.

Are previous-year questions practised?

Yes. Unit-wise AKTU previous-year questions, short-answer questions and the test series are solved in class.