DocumentCode :
1942866
Title :
Optimal power control in Rayleigh-fading heterogeneous networks
Author :
Tan, Chee Wei
Author_Institution :
City Univ. of Hong Kong, Hong Kong, China
fYear :
2011
fDate :
10-15 April 2011
Firstpage :
2552
Lastpage :
2560
Abstract :
Heterogeneous wireless networks employ varying degrees of network coverage using power control in a multi-tier configuration, where low-power femtocells are used to enhance performance, e.g., optimize outage probability. We study the worst outage probability problem under Rayleigh fading. As a by-product, we solve an open problem of convergence for a previously proposed algorithm in the interference-limited case. We then address a total power minimization problem with outage specification constraints and its feasibility condition. We propose a dynamic algorithm that adapts the outage probability specification in a heterogeneous network to minimize the total energy consumption and simultaneously guarantees all the femtocell users a min-max fairness in terms of the worst outage probability.
Keywords :
Rayleigh channels; femtocellular radio; minimax techniques; optimal control; power control; telecommunication control; Rayleigh fading heterogeneous networks; femtocell users; min-max fairness; multi-tier configuration; network coverage; optimal power control; outage probability; total energy consumption; total power minimization problem; Femtocells; Heuristic algorithms; Interference; Rayleigh channels; Receivers; Signal to noise ratio; Optimization; femtocell networks; nonnegative matrix theory; outage probability; power control;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
INFOCOM, 2011 Proceedings IEEE
Conference_Location :
Shanghai
ISSN :
0743-166X
Print_ISBN :
978-1-4244-9919-9
Type :
conf
DOI :
10.1109/INFCOM.2011.5935080
Filename :
5935080
Link To Document :
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