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Optimal bit allocation adaptive modulation algorithm for MIMO system

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3 Author(s)
Lingyan Fan ; Electr. Eng. Dept., Shanghai JiaoTong Univ., Shanghai, China ; Chen He ; Guorui Feng

In this paper, an adaptive minimum transmit power modulation scheme under constant data rate and fixed bit error rate (BER) for the multiple-input multiple-output (MIMO) system is proposed. It adjusts the modulation order and allocates the transmit power to each spatial sub-channel when meeting the user's requirements at the cost of minimum transmission power. Compared to the other algorithm, it can obtain good performance with lower computational complexity and can be applied to the wireless communication system. Computer simulation results present the efficiency of the proposed scheme. And its performance under different channel condition has been compared with the other algorithm.

Published in:

Communications and Networks, Journal of  (Volume:9 ,  Issue: 2 )

Date of Publication:

June 2007

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