Multiplexing zero-error and rare-error communications over a noisy channel with feedback
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Date
2017Type
- Conference Paper
Abstract
Two independent data streams - the “zero-error stream” and the “rare-error stream” - are to be transmitted over a noisy discrete memoryless channel with feedback. Errors are tolerated only in the rare-error stream, provided that their probability tends to zero. Clearly the rate of the error-free stream cannot exceed the channel's zero-error feedback capacity, and the sum of the streams' rates cannot exceed the channel's Shannon capacity. Using a suitable coding scheme, these necessary conditions are shown to characterize all the achievable rate pairs. Planning for the worst - as is needed to achieve zero-error communication - and planning for the true channel - as is needed to communicate near the Shannon limit - are thus not incompatible. Show more
Publication status
publishedExternal links
Book title
2017 IEEE International Symposium on Information Theory (ISIT)Pages / Article No.
Publisher
IEEEEvent
Subject
Feedback; multiplexing; Shannon capacity; Zero-error capacityOrganisational unit
02639 - Inst. f. Signal- und Informationsverarb. / Signal and Information Processing Lab.03529 - Lapidoth, Amos / Lapidoth, Amos
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