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18. Assignment topics<br />
Unit 1:<br />
1. Certain issues of digital transmission,<br />
2. advantages of digital communication systems,<br />
3. Bandwidth- S/N trade off, and Sampling theorem<br />
4. PCM generation and reconstruction<br />
5. Quantization noise, Differential PCM systems (DPCM)<br />
6. Delta modulation,<br />
Unit 2:<br />
1. Coherent ASK detector and non-Coherent ASK detector<br />
2. Coherent FSK detector BPSK<br />
3. Coherent PSK detection<br />
1. A Base band signal receiver,<br />
2. Different pulses and power spectrum densities<br />
3. Probability of error<br />
Unit 3:<br />
1. Conditional entropy and redundancy,<br />
2. Shannon Fano coding<br />
3. Mutual information.<br />
4. Matrix description of linear block codes<br />
5. Matrix description of linear block codes<br />
5. Error detection and error correction capabilities of linear block codes<br />
Unit 4:<br />
1. Encoding,<br />
2. decoding using state Tree and trellis diagrams<br />
3. Decoding using Viterbi algorithm<br />
Unit 5:<br />
1. Use of spread spectrum<br />
2. direct sequence spread spectrum(DSSS),<br />
3. Code division multiple access<br />
4. Ranging using DSSS Frequency Hopping spread spectrum
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