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Better QoS and less power in wireless ad hoc networks by distributed power control using power and SINR-based pricing functions

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2 Author(s)
Haratian, R. ; Dept. of Electr. & Comput. Eng., Tarbiat Modares Univ., Tehran, Iran ; Sharafat, A.R.

We study the problem of power control in the physical layer of wireless ad hoc networks with a view to increasing the network's quality of service, reducing power consumption, and decreasing interference. We propose a new power control algorithm, and use game theory to analyze its performance, where each user's quality of service is a function of its signal-to-interference-plus-noise-ratio (SINR). The utility function for each user is defined by its desired SINR minus a pricing to provide adequate incentive for each user to choose its power level in such a way to maximize the aggregate of all users' utilities (total network utility) instead of selfishly maximizing its own SINR. Simulation results show improvement in the network's performance at reduced power levels.

Published in:

Wireless Communications & Signal Processing, 2009. WCSP 2009. International Conference on

Date of Conference:

13-15 Nov. 2009