Sum-capacity of ergodic fading interference and compound multiaccess channels

Lalitha Sankar; Elza Erkip; H. Vincent Poor

doi:10.1109/ISIT.2008.4595485

Sum-capacity of ergodic fading interference and compound multiaccess channels

Lalitha Sankar, Elza Erkip, H. Vincent Poor

Electrical and Computer Engineering

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

Abstract

The problem of resource allocation is studied for two-sender two-receiver fading Gaussian interference channels (IFCs) and compound multiaccess channels (C-MACs). The senders in an IFC communicate with their own receiver (unicast) while those in a C-MAC communicate with both receivers (multicast). The instantaneous fading state between every transmitreceive pair in this network is assumed to be known at all transmitters and receivers. Under an average power constraint at each source, the sum-capacity of the C-MAC and the power policy that achieves this capacity is developed. The conditions defining the classes of strong and very strong ergodic IFCs are presented and the multicast sum-capacity is shown to be tight for both classes.

Original language	English (US)
Title of host publication	Proceedings - 2008 IEEE International Symposium on Information Theory, ISIT 2008
Pages	2712-2716
Number of pages	5
DOIs	https://doi.org/10.1109/ISIT.2008.4595485
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

Other

Other	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.2008.4595485

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Sum-capacity of ergodic fading interference and compound multiaccess channels. / Sankar, Lalitha; Erkip, Elza; Poor, H. Vincent.
Proceedings - 2008 IEEE International Symposium on Information Theory, ISIT 2008. 2008. p. 2712-2716 4595485 (IEEE International Symposium on Information Theory - Proceedings).

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

Sankar, L, Erkip, E & Poor, HV 2008, Sum-capacity of ergodic fading interference and compound multiaccess channels. in Proceedings - 2008 IEEE International Symposium on Information Theory, ISIT 2008., 4595485, IEEE International Symposium on Information Theory - Proceedings, pp. 2712-2716, 2008 IEEE International Symposium on Information Theory, ISIT 2008, Toronto, ON, Canada, 7/6/08. https://doi.org/10.1109/ISIT.2008.4595485

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AB - The problem of resource allocation is studied for two-sender two-receiver fading Gaussian interference channels (IFCs) and compound multiaccess channels (C-MACs). The senders in an IFC communicate with their own receiver (unicast) while those in a C-MAC communicate with both receivers (multicast). The instantaneous fading state between every transmitreceive pair in this network is assumed to be known at all transmitters and receivers. Under an average power constraint at each source, the sum-capacity of the C-MAC and the power policy that achieves this capacity is developed. The conditions defining the classes of strong and very strong ergodic IFCs are presented and the multicast sum-capacity is shown to be tight for both classes.

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Sum-capacity of ergodic fading interference and compound multiaccess channels

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