Title :
A successive convex approximation algorithm for weighted sum-rate maximization in downlink OFDMA networks
Author :
Venturino, Luca ; Prasad, Narayan ; Wang, Xiaodong
Author_Institution :
DAEMI, Univ. degli Studi di Cassino, Cassino
Abstract :
We consider a downlink OFDMA cellular network wherein groups of access points are coordinated and we address the problem of jointly selecting the set of co-channel users and the power allocation across tones in order to maximize the weighted system sum-rate subject to per-base-station power constraints. To solve this problem, we propose a successive convex approximation for low-complexity (SCALE) algorithm which extends a previous optimization procedure developed for ADSL. Numerical examples are provided to assess its performance.
Keywords :
OFDM modulation; cellular radio; convex programming; cochannel user; downlink OFDMA cellular network; power allocation; successive convex approximation for low-complexity algorithm; weighted sum-rate maximization; Algorithm design and analysis; Approximation algorithms; Clustering algorithms; Downlink; Electronic mail; Femtocell networks; Interference; Iterative algorithms; Land mobile radio cellular systems; Power control;
Conference_Titel :
Information Sciences and Systems, 2008. CISS 2008. 42nd Annual Conference on
Conference_Location :
Princeton, NJ
Print_ISBN :
978-1-4244-2246-3
Electronic_ISBN :
978-1-4244-2247-0
DOI :
10.1109/CISS.2008.4558556
