Digital Communication Notes (DC)

Digital Communication Notes – DC Notes

Digital Communication Notes – DC Notes – DC Pdf notes

Unit-I

Elements of Digital Communication Systems: Model of Digital Communication Systems. Digital Representation of Analog Signal, Certain issues in Digital Transmission. Advantages of Digital Communication Systems, Bandwidth-SIN tradeoff. Hartley Shanon Law, Sampling Theorem

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Lecture notes 1 –

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Unit-II

Pulse Code Modulation: PCM Generation and Reconstruction, Quantization noise, Non uniform Quantization and Companding, DPCM, Adaptive DPCM. DM and Adaptive DM, Noise in PCM and DM.

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Unit-III

Digital Modulation Techniques: Introduction, ASK,ASK Modulator. Coherent ASK Detector, No n-Coherent ASK Detector, PSK, Bandwidth and Frequency Spectrum of FSK. Non coherent FSK Detector, Coherent FSK Detector, PSK Detection Using PLL, BPSK, Coherent PSK Detection. QPSK, Differential PSK.

Lecture notes 3

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Unit-IV

Baseband transmission and Optimal Reception of Digital Signal: Pulse shaping for optimum transmissions, ABaseband Signal Receiver, Probability of Error, Optimum Receiver, optimal of Coherent Reception, Signal Space Representation and Probability of Error, eye diagrams, Cross talk.

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Unit-V

Information Theory: Information and entropy, conditional entropy and redundancy, Shannon Fano coding, Mutual Information, information loss due to noise, source codings – Huffman Code, variable length coding, Source coding to Increase average lnfomtation per bit, Lossy source coding.

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Lecture notes 5

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Unit-VI

Linear Block Codes: Matrix description of Linear Block Codes. Error detection and error Correction capabilities of linear block codes. CyDecoding.

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Unit VII

Convolution Codes: Encoding. Decoding using State, tree and trellis diagrams, Decoding using Viterbi algorithm, Comparison of Error Rates in Coded and Uncoded Transmission.

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Unit-VIII

Spread Spectrum Modulation: Use of Spread Spectrum, Direct Sequence Spread Spectrurn(DSSS), Code Division Multiple Access, Ranging using DSSS. Frequency Hopping Spread Spectrum, PN – sequences: Generation . and Characteristics. Synchronization in Spread Spectrum Systems

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TEXTBOOKS: Digital Communication Notes – DC Notes – DC Pdf notes

  1. Principles of communication systems ~ Herbert Taub, Donald L Schiling, Goutam Saha, 3″’ Edition,McGraw-Hill, 2008.
  2. Digital and Analog Communicaton Systems — Sam Shanmugam, John . Wile;/.2005.

REFERENCES: Digital Communication Notes – DC Notes – DC Pdf notes

  1. Digital Communications — John G. Proakis , Masoud salehi – 5″‘ Edition, McGraw-Hill. 2008.

2 Digital Communication — Simon I-Iaykin, Jon Wiley, 2005.

  1. Digital Communications – lan A. Glover. Peter M. Grant, 2″‘ Edition, Pearson Edu., 2008.
  2. Communication Systems – B.P. Lathi, BS Publication, 2006. clic Codes: Algebraic structure, encoding, syndrome calculation

Note :- These notes are according to the r09 Syllabus book of JNTUH.In R13 ,8-units of R09 syllabus are combined into 5-units in r13 syllabus.Click here to check all the JNTU Syllabus books 

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