Article View: sci.electronics
Article #9396Information, channel capacity, and feedback
From: Tony Zador
Date: Thu, 10 Jan 1991 00:28
Date: Thu, 10 Jan 1991 00:28
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1202 bytes
Suppose you have a source A and a destination B to which you are trying to communicate. Everything is continuous. You have X units of channel capacity at your disposal (perhaps they correspond to n thin filaments of cable, sold in small units of X/n). If you string your channel from A to B, then according to Shannon you can transmit X but no more information per unit time with arbitrarily small error. What if you allow feedback? That is, what if you have a channel of Y capacity from A to B and X-Y units from B to A? Does this win you anything? Does Shannon cover this? Is this even a well-posed question? Thanks for any help, Tony Zador zador@cs.yale.edu
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!yale!cs.yale.edu!zador-anthony From: zador-anthony@cs.yale.edu (Tony Zador) Newsgroups: sci.electronics Subject: Information, channel capacity, and feedback Message-ID: <27992@cs.yale.edu> Date: 10 Jan 91 00:28:13 GMT Sender: news@cs.yale.edu Distribution: sci.electronics Organization: Yale University Computer Science Dept., New Haven, CT 06520-2158 Lines: 16 Nntp-Posting-Host: systemsx-gw.cs.yale.edu Originator: zador@sunny.CS.Yale.Edu