Optimal spectrum management in Two-user symmetric interference channels

Yue Zhao; Gregory J. Pottie

doi:10.1109/ITA.2009.5044955

Optimal spectrum management in Two-user symmetric interference channels

Yue Zhao
, Gregory J. Pottie

Electrical Engineering

University of California at Los Angeles

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

2 Scopus citations

Abstract

In this paper, we solve for the optimal spectrum management of the sum-rate maximization problem in two-user symmetric interference channels. A sum-power constraint, or equivalently, equal power constraints are assumed. First, by solving a closed form equation, we explicitly obtain the optimal spectrum management in flat channels as an optimal combination of flat FDMA and flat frequency sharing, exploiting the fact that all spectrum management schemes are built with these two basic co-existence strategies. Based on this result, we show that the non-convex optimization over the spectrum and power allocation in frequency selective channels can be equivalently transformed into a convex optimization in the primal domain.

Original language	English
Title of host publication	Information Theory and Applications Workshop, ITA 2009
Pages	256-263
Number of pages	8
DOIs	https://doi.org/10.1109/ITA.2009.5044955
State	Published - 2009
Event	Information Theory and Applications Workshop, ITA 2009 - San Diego, CA, United States Duration: Feb 8 2009 → Feb 13 2009

Publication series

Name	Information Theory and Applications Workshop, ITA 2009

Conference

Conference	Information Theory and Applications Workshop, ITA 2009
Country/Territory	United States
City	San Diego, CA
Period	02/8/09 → 02/13/09

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10.1109/ITA.2009.5044955

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title = "Optimal spectrum management in Two-user symmetric interference channels",

abstract = "In this paper, we solve for the optimal spectrum management of the sum-rate maximization problem in two-user symmetric interference channels. A sum-power constraint, or equivalently, equal power constraints are assumed. First, by solving a closed form equation, we explicitly obtain the optimal spectrum management in flat channels as an optimal combination of flat FDMA and flat frequency sharing, exploiting the fact that all spectrum management schemes are built with these two basic co-existence strategies. Based on this result, we show that the non-convex optimization over the spectrum and power allocation in frequency selective channels can be equivalently transformed into a convex optimization in the primal domain.",

author = "Yue Zhao and Pottie, \{Gregory J.\}",

year = "2009",

doi = "10.1109/ITA.2009.5044955",

language = "English",

isbn = "9781424439904",

series = "Information Theory and Applications Workshop, ITA 2009",

pages = "256--263",

booktitle = "Information Theory and Applications Workshop, ITA 2009",

note = "Information Theory and Applications Workshop, ITA 2009 ; Conference date: 08-02-2009 Through 13-02-2009",

}

Zhao, Y & Pottie, GJ 2009, Optimal spectrum management in Two-user symmetric interference channels. in Information Theory and Applications Workshop, ITA 2009., 5044955, Information Theory and Applications Workshop, ITA 2009, pp. 256-263, Information Theory and Applications Workshop, ITA 2009, San Diego, CA, United States, 02/8/09. https://doi.org/10.1109/ITA.2009.5044955

TY - GEN

T1 - Optimal spectrum management in Two-user symmetric interference channels

AU - Zhao, Yue

AU - Pottie, Gregory J.

PY - 2009

Y1 - 2009

N2 - In this paper, we solve for the optimal spectrum management of the sum-rate maximization problem in two-user symmetric interference channels. A sum-power constraint, or equivalently, equal power constraints are assumed. First, by solving a closed form equation, we explicitly obtain the optimal spectrum management in flat channels as an optimal combination of flat FDMA and flat frequency sharing, exploiting the fact that all spectrum management schemes are built with these two basic co-existence strategies. Based on this result, we show that the non-convex optimization over the spectrum and power allocation in frequency selective channels can be equivalently transformed into a convex optimization in the primal domain.

AB - In this paper, we solve for the optimal spectrum management of the sum-rate maximization problem in two-user symmetric interference channels. A sum-power constraint, or equivalently, equal power constraints are assumed. First, by solving a closed form equation, we explicitly obtain the optimal spectrum management in flat channels as an optimal combination of flat FDMA and flat frequency sharing, exploiting the fact that all spectrum management schemes are built with these two basic co-existence strategies. Based on this result, we show that the non-convex optimization over the spectrum and power allocation in frequency selective channels can be equivalently transformed into a convex optimization in the primal domain.

UR - https://www.scopus.com/pages/publications/70349301918

U2 - 10.1109/ITA.2009.5044955

DO - 10.1109/ITA.2009.5044955

M3 - Conference contribution

AN - SCOPUS:70349301918

SN - 9781424439904

T3 - Information Theory and Applications Workshop, ITA 2009

SP - 256

EP - 263

BT - Information Theory and Applications Workshop, ITA 2009

T2 - Information Theory and Applications Workshop, ITA 2009

Y2 - 8 February 2009 through 13 February 2009

ER -

Optimal spectrum management in Two-user symmetric interference channels

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