Title :
Ergodic capacity region for the uplink OFDMA network
Author :
Zelang Wang ; Huifang Chen ; Lei Xie
Author_Institution :
Dept. of Inf. Sci. & Electron. Eng., Zhejiang Univ., Hangzhou, China
Abstract :
In this paper, the resource allocation policy and algorithm for the uplink Orthogonal Frequency Division Multiple Access (OFDMA) network over the fading channel is studied. With the convex optimization theory, the optimal resource allocation is formulated as a weighted ergodic sum rate maximization problem. The theoretical ergodic capacity region with continuous rate adaption and discrete rate adaption is given subject to per-user power constraint. Simulation results show the ergodic capacity region for two-user uplink OFDMA network.
Keywords :
OFDM modulation; convex programming; fading channels; resource allocation; continuous rate adaption; convex optimization theory; discrete rate adaption; ergodic capacity region; fading channel; optimal resource allocation; per-user power constraint; two-user uplink OFDMA network; uplink orthogonal frequency division multiple access network; weighted ergodic sum rate maximization problem; Ergodic capacity region; convex optimization; resource allocation; uplink OFDMA network;
Conference_Titel :
Wireless Communications & Signal Processing (WCSP), 2012 International Conference on
Conference_Location :
Huangshan
Print_ISBN :
978-1-4673-5830-9
Electronic_ISBN :
978-1-4673-5829-3
DOI :
10.1109/WCSP.2012.6542891
