Optimal Binary Power Allocation for Wireless Networks with Local Interference

Badruddin , Nasreen and Hanly, Stephen and Evans, Jamie (2010) Optimal Binary Power Allocation for Wireless Networks with Local Interference. In: IEEE International Conference on Communications (ICC), 2010, 23-27 May 2010, Cape Town, South Africa.

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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.

Item Type: Conference or Workshop Item (Paper)
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Departments / MOR / COE: Departments > Electrical & Electronic Engineering
Depositing User: Nasreen Badruddin
Date Deposited: 18 Mar 2011 01:47
Last Modified: 31 Mar 2014 22:00
URI: http://scholars.utp.edu.my/id/eprint/4422

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