Title :
On uplink OFDMA resource allocation with ergodic sum-rate maximization
Author :
El-Hajj, Ahmad M. ; Yaacoub, Elias ; Dawy, Zaher
Author_Institution :
Dept. of Electr. & Comput. Eng., American Univ. of Beirut, Beirut, Lebanon
Abstract :
Uplink ergodic sum-rate maximization in OFDMA systems is considered. The general problem is formulated as a convex optimization problem and a dual solution is presented. The problem formulation is generalized to the case of utility maximization where the utility can be any function of rate. A suboptimal scheduling algorithm with low complexity is proposed and shown to achieve close performance to the optimal solution.
Keywords :
OFDM modulation; communication complexity; frequency division multiple access; optimisation; resource allocation; scheduling; convex optimization problem; ergodic sum-rate maximization; suboptimal scheduling algorithm; uplink OFDMA resource allocation; utility maximization; Base stations; Centralized control; Downlink; Frequency conversion; Frequency diversity; Iterative algorithms; Iterative methods; Resource management; Scheduling algorithm; OFDMA; Scheduling; convex optimization;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2009 IEEE 20th International Symposium on
Conference_Location :
Tokyo
Print_ISBN :
978-1-4244-5122-7
Electronic_ISBN :
978-1-4244-5123-4
DOI :
10.1109/PIMRC.2009.5449904
