Title :
Discrete Power Control: Cooperative and Non-Cooperative Optimization
Author :
Altman, Eitan ; Avrachenkov, Konstantin ; Miller, Gregory ; Prabhu, Balakrishna
Author_Institution :
INRIA Sophia Antipolis, Sophia Antipolis
Abstract :
We consider an uplink power control problem where each mobile wishes to maximize its throughput (which depends on the transmission powers of all mobiles) but has a constraint on the average power consumption. A finite number of power levels are available to each mobile. The decision of a mobile to select a particular power level may depend on its channel state. We consider two frameworks concerning the state information of the channels of other mobiles: (i) the case of full state information and (ii) the case of local state information. In each of the two frameworks, we consider both cooperative as well as non-cooperative power control. We manage to characterize the structure of equilibria policies and, more generally, of best-response policies in the non-cooperative case. We present an algorithm to compute equilibria policies in the case of two non-cooperative players. Finally, we study the case where a malicious mobile, which also has average power constraints, tries to jam the communication of the other mobile. Our results are illustrated and validated through various numerical examples.
Keywords :
mobile communication; optimisation; power control; telecommunication computing; telecommunication control; channel state; discrete power control; optimization; Base stations; Batteries; Communications Society; Constraint optimization; Energy consumption; Mobile communication; Multiaccess communication; Power control; Throughput; Wireless networks;
Conference_Titel :
INFOCOM 2007. 26th IEEE International Conference on Computer Communications. IEEE
Conference_Location :
Anchorage, AK
Print_ISBN :
1-4244-1047-9
DOI :
10.1109/INFCOM.2007.13