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Evaluation of the Channel State Information Effect to MIMO-OFDM System Performance

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5 Author(s)
Hao Zhang ; Inst. of Commun. Eng., PLA Univ. of Sci. & Technol., Nanjing ; Zhi-Jie Zhou ; Wen-Qiang Zhang ; Yi Hui
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The researches about conditions of the resource allocation algorithm in wireless communication have been done a lot recently. An evaluation model for the adaptive algorithm of MIMO-OFDM system is built in this paper. After formulating system efficiency under static and adaptive conditions, the effect of imperfect channel state information (CSI) to MIMO-OFDM system is analyzed. Analytical and numerical results show effect to the frequency efficiency when the CSI is imperfect, and simulations show that MIMO-OFDM can resist the channel delay. At last we propose the compensatory policy for channel delay and channel estimation error.

Published in:

Wireless Communications, Networking and Mobile Computing, 2008. WiCOM '08. 4th International Conference on

Date of Conference:

12-14 Oct. 2008