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Can Negligible Rate Increase Network Reliability? | IEEE Journals & Magazine | IEEE Xplore

Can Negligible Rate Increase Network Reliability?


Abstract:

In network cooperation strategies, nodes work together with the aim of increasing transmission rates or reliability. This paper demonstrates that enabling cooperation bet...Show More

Abstract:

In network cooperation strategies, nodes work together with the aim of increasing transmission rates or reliability. This paper demonstrates that enabling cooperation between the transmitters of a two-user multiple access channel via a cooperation facilitator that has access to both messages results in a network whose maximal- and average-error capacity regions are the same; this benefit ensues even when the information received by each transmitter is negligible. From this result, it follows that if a multiple access channel with no transmitter cooperation has different maximal- and average-error sum-capacities, then the maximal-error sum-capacity of the network consisting of this channel and a cooperation facilitator is not continuous with respect to the output edge capacities of the facilitator. Thus, there exist networks where adding negligible rate yields a non-negligible benefit.
Published in: IEEE Transactions on Information Theory ( Volume: 64, Issue: 6, June 2018)
Page(s): 4282 - 4293
Date of Publication: 08 June 2017

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