Collaboration gain in MAC is limited

Uri Mendlovic; Meir Feder

doi:10.1109/ISIT.2014.6875409

Collaboration gain in MAC is limited

Uri Mendlovic, Meir Feder

School of Electrical Engineering

Tel Aviv University

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

1 Scopus citations

Abstract

Classical MAC coding schemes assume independent transmitted signals, because the given messages are assumed to be independent and the remote transmitters cannot cooperate. However, when the messages are correlated, or in the extreme case of fully cooperative transmitters, a better performance may be achieved. We explore the performance gain of this collaboration and its connection to transmission synchronization. For totally asynchronous transmitters we prove that transmitters collaboration has no performance gain. This result is proven for discrete-value channels. For continuous-value channels we focus on the collaboration gain of the AWGN MAC, indicating that it is bounded by a single bit and a factor of two. We suggest that this collaboration gain diminishes without synchronization as well.

Original language	English
Title of host publication	2014 IEEE International Symposium on Information Theory, ISIT 2014
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	3122-3126
Number of pages	5
ISBN (Print)	9781479951864
DOIs	https://doi.org/10.1109/ISIT.2014.6875409
State	Published - 2014
Event	2014 IEEE International Symposium on Information Theory, ISIT 2014 - Honolulu, HI, United States Duration: 29 Jun 2014 → 4 Jul 2014

Publication series

Name	IEEE International Symposium on Information Theory - Proceedings
ISSN (Print)	2157-8095

Conference

Conference	2014 IEEE International Symposium on Information Theory, ISIT 2014
Country/Territory	United States
City	Honolulu, HI
Period	29/06/14 → 4/07/14

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10.1109/ISIT.2014.6875409

Cite this

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title = "Collaboration gain in MAC is limited",

abstract = "Classical MAC coding schemes assume independent transmitted signals, because the given messages are assumed to be independent and the remote transmitters cannot cooperate. However, when the messages are correlated, or in the extreme case of fully cooperative transmitters, a better performance may be achieved. We explore the performance gain of this collaboration and its connection to transmission synchronization. For totally asynchronous transmitters we prove that transmitters collaboration has no performance gain. This result is proven for discrete-value channels. For continuous-value channels we focus on the collaboration gain of the AWGN MAC, indicating that it is bounded by a single bit and a factor of two. We suggest that this collaboration gain diminishes without synchronization as well.",

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year = "2014",

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Mendlovic, U & Feder, M 2014, Collaboration gain in MAC is limited. in 2014 IEEE International Symposium on Information Theory, ISIT 2014., 6875409, IEEE International Symposium on Information Theory - Proceedings, Institute of Electrical and Electronics Engineers Inc., pp. 3122-3126, 2014 IEEE International Symposium on Information Theory, ISIT 2014, Honolulu, HI, United States, 29/06/14. https://doi.org/10.1109/ISIT.2014.6875409

Collaboration gain in MAC is limited. / Mendlovic, Uri; Feder, Meir.
2014 IEEE International Symposium on Information Theory, ISIT 2014. Institute of Electrical and Electronics Engineers Inc., 2014. p. 3122-3126 6875409 (IEEE International Symposium on Information Theory - Proceedings).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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Collaboration gain in MAC is limited

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