'Channel coding theorem' diaporamas de présentation

Chapter 9

IEG4020 Telecommunication Switching and Network Systems. Chapter 9. Packet Switching and Information Transmission. Reliable Communication. Circuit-switched network: Reliable communication requires noise-tolerant transmission Packet-switched network:

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???? ...coding theory

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Communication System

Communication System. A communication system can be represented as in Figure. A message W , drawn from the index set {1 , 2 , . . . , M }, results in the signal X n (W) , which is received by the receiver as a random sequence Y n ? p(y n | x n ) .

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Information Theory and the Security of Binary Data Perturbation

Information Theory and the Security of Binary Data Perturbation. Poorvi Vora Dept. of Computer Science George Washington University. Statistical Database. Database A: Q = {q 1 ,q 2 ,...q i ,... } (queryable bits) and S = {s 1 , s 2 ,...s i ,... } (sensitive bits).

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A Brief Introduction to Information Theory

A Brief Introduction to Information Theory. 12/2/2004 ???. Outline. Motivation and Historical Notes Information Measure Implications and Limitations Classical and Beyond Conclusion. Motivation: What is information?.

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