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International Journal of Distributed Sensor Networks
Volume 2011 (2011), Article ID 946258, 8 pages
http://dx.doi.org/10.1155/2011/946258
Research Article

Modeling and Performance Analysis of Energy Efficiency Binary Power Control in MIMO-OFDM Wireless Communication Systems

1Department of Electronics and Information Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
2Department of Information and Communication Technology, University of Agder (UiA), 4879 Grimstad, Norway

Received 31 March 2011; Accepted 30 June 2011

Copyright © 2011 Yuming Wang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The energy efficiency optimization of the binary power control scheme for MIMO-OFDM wireless communication systems is formulated, and then a global optimization solution of power allocation is derived. Furthermore, a new energy efficiency binary power control (EEBPC) algorithm is designed to improve the energy efficiency of MIMO-OFDM wireless communication systems. Simulation results show that the EEBPC algorithm has better energy efficiency and spectrum efficiency than the average power control algorithm in MIMO-OFDM wireless communication systems.