Title :
Globally Optimal Distributed Power Control for Nonconcave Utility Maximization
Author :
Qian, Li Ping ; Zhang, Ying Jun ; Chiang, Mung
Author_Institution :
Dept. of Inf. Eng., Chinese Univ. of Hong Kong, Hong Kong, China
Abstract :
We consider a distributed power control algorithm for infrastructureless ad hoc wireless networks, where each link distributively and asynchronously updates its transmission power with limited message passing among links. This algorithm provably converges to the set of global optimal solutions despite the non-convexity of the power control problem. In contrast with existing distributed power control algorithms, our algorithm makes no stringent assumptions on the system utility functions. In particular, the utility function is allowed to be concave or non-concave, differentiable or non-differentiable, continuous or discontinuous, and monotonic or non-monotonic.
Keywords :
ad hoc networks; distributed control; power control; radio networks; telecommunication control; telecommunication links; globally optimal distributed power control; infrastructureless ad hoc wireless networks; nonconcave utility maximization; transmission power; Ad hoc networks; Convergence; Interference; Message passing; Power control; Resource management; Signal to noise ratio;
Conference_Titel :
Global Telecommunications Conference (GLOBECOM 2010), 2010 IEEE
Conference_Location :
Miami, FL
Print_ISBN :
978-1-4244-5636-9
Electronic_ISBN :
1930-529X
DOI :
10.1109/GLOCOM.2010.5683657