"To sense" or "not to sense" in energy-efficient power control games
Abstract
A network of cognitive transmitters is considered. Each transmitter has to decide his power control policy in order to maximize energy-efficiency of his transmission. For this, a transmitter has two actions to take. He has to decide whether to sense the power levels of the others or not (which corresponds to a finite sensing game), and to choose his transmit power level for each block (which corresponds to a compact power control game). The sensing game is shown to be a weighted potential game and its set of correlated equilibria is studied. Interestingly, it is shown that the general hybrid game where each transmitter can jointly choose the hybrid pair of actions (to sense or not to sense, transmit power level) leads to an outcome which is worse than the one obtained by playing the sensing game first, and then playing the power control game. This is an interesting Braess-type paradox to be aware of for energy-efficient power control in cognitive networks.
Keywords
Cite
@article{arxiv.1210.6370,
title = {"To sense" or "not to sense" in energy-efficient power control games},
author = {Maël Le Treust and Yezekael Hayel and Samson Lasaulce and Mérouane Debbah},
journal= {arXiv preprint arXiv:1210.6370},
year = {2012}
}
Comments
Proc. of the 2nd International Conference on Game Theory for Network (GAMENETS), 2011