Optimal binary power allocation for wireless networks with local interference

Nasreen Badruddin; Stephen Hanly; Jamie S. Evans

doi:10.1109/ICC.2010.5502323

Optimal binary power allocation for wireless networks with local interference

Nasreen Badruddin^*, Stephen Hanly, Jamie S. Evans

^*Corresponding author for this work

School of Engineering

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

5 Citations (Scopus)

Abstract

In a Wyner model each link only interferes with links adjacent to it. We consider the problem of finding the optimal power allocation which maximizes the sum-rate of such a network. Each link has a maximum power constraint and the power allocation is assumed to be time and frequency flat. In the case of 3- and 4-link Wyner models, we show that the optimal power schemes are in fact binary, i.e. a link is either switched off or turned on at full power. The problem is then extended to larger-sized Wyner models by limiting to optimal binary power schemes. Interesting phase transitions are observed as the interference cross-gain, ε, traverses various thresholds.

Original language	English
Title of host publication	2010 IEEE International Conference on Communications (ICC 2010)
Place of Publication	Piscataway, NJ
Publisher	Institute of Electrical and Electronics Engineers (IEEE)
Pages	1-5
Number of pages	5
ISBN (Electronic)	9781424464043, 9781424464036
ISBN (Print)	9781424464029
DOIs	https://doi.org/10.1109/ICC.2010.5502323
Publication status	Published - May 2010
Event	2010 IEEE International Conference on Communications, ICC 2010 - Cape Town, South Africa Duration: 23 May 2010 → 27 May 2010

Other

Other	2010 IEEE International Conference on Communications, ICC 2010
Country/Territory	South Africa
City	Cape Town
Period	23/05/10 → 27/05/10

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10.1109/ICC.2010.5502323

Cite this

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title = "Optimal binary power allocation for wireless networks with local interference",

abstract = "In a Wyner model each link only interferes with links adjacent to it. We consider the problem of finding the optimal power allocation which maximizes the sum-rate of such a network. Each link has a maximum power constraint and the power allocation is assumed to be time and frequency flat. In the case of 3- and 4-link Wyner models, we show that the optimal power schemes are in fact binary, i.e. a link is either switched off or turned on at full power. The problem is then extended to larger-sized Wyner models by limiting to optimal binary power schemes. Interesting phase transitions are observed as the interference cross-gain, ε, traverses various thresholds.",

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Badruddin, N, Hanly, S & Evans, JS 2010, Optimal binary power allocation for wireless networks with local interference. in 2010 IEEE International Conference on Communications (ICC 2010)., 5502323, Institute of Electrical and Electronics Engineers (IEEE), Piscataway, NJ, pp. 1-5, 2010 IEEE International Conference on Communications, ICC 2010, Cape Town, South Africa, 23/05/10. https://doi.org/10.1109/ICC.2010.5502323

Optimal binary power allocation for wireless networks with local interference. / Badruddin, Nasreen; Hanly, Stephen; Evans, Jamie S.
2010 IEEE International Conference on Communications (ICC 2010). Piscataway, NJ: Institute of Electrical and Electronics Engineers (IEEE), 2010. p. 1-5 5502323.

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

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Optimal binary power allocation for wireless networks with local interference

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