Decentralized power control with two-way training for multiple access

Gajanana G. Krishna; Srikrishna Bhashyam; Ashutosh Sabharwal

doi:10.1109/ISIT.2008.4595058

Decentralized power control with two-way training for multiple access

Gajanana G. Krishna, Srikrishna Bhashyam, Ashutosh Sabharwal

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

5 Scopus citations

Abstract

In this work, we analyze the diversity-multiplexing performance of a MIMO multiple access wireless system with non-cooperating transmitters. Each of the transmitters and receiver use noisy and mismatched versions of the channel estimate to implement decentralized power control. While accounting for the resources consumed in training, we show that with relatively simple power control, regardless of the number of transmitters, we can achieve double the maximum diversity order of a system with no instantaneous channel state information at the transmitters. Intuitively, the gain can be attributed to using temporal degrees of freedom enabled by power control without coding over multiple coherence intervals.

Original language	English (US)
Title of host publication	Proceedings - 2008 IEEE International Symposium on Information Theory, ISIT 2008
Pages	609-613
Number of pages	5
DOIs	https://doi.org/10.1109/ISIT.2008.4595058
State	Published - 2008
Event	2008 IEEE International Symposium on Information Theory, ISIT 2008 - Toronto, ON, Canada Duration: Jul 6 2008 → Jul 11 2008

Publication series

Name	IEEE International Symposium on Information Theory - Proceedings
ISSN (Print)	2157-8101

Conference

Conference	2008 IEEE International Symposium on Information Theory, ISIT 2008
Country/Territory	Canada
City	Toronto, ON
Period	7/6/08 → 7/11/08

ASJC Scopus subject areas

Theoretical Computer Science
Information Systems
Modeling and Simulation
Applied Mathematics

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10.1109/ISIT.2008.4595058

Cite this

Decentralized power control with two-way training for multiple access. / Krishna, Gajanana G.; Bhashyam, Srikrishna; Sabharwal, Ashutosh.
Proceedings - 2008 IEEE International Symposium on Information Theory, ISIT 2008. 2008. p. 609-613 4595058 (IEEE International Symposium on Information Theory - Proceedings).

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

Krishna, GG, Bhashyam, S & Sabharwal, A 2008, Decentralized power control with two-way training for multiple access. in Proceedings - 2008 IEEE International Symposium on Information Theory, ISIT 2008., 4595058, IEEE International Symposium on Information Theory - Proceedings, pp. 609-613, 2008 IEEE International Symposium on Information Theory, ISIT 2008, Toronto, ON, Canada, 7/6/08. https://doi.org/10.1109/ISIT.2008.4595058

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Decentralized power control with two-way training for multiple access

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