Journal of Communications and Networks

The Korean Institute of Commucations and Information Sciences (한국통신학회)
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Optimal Bit Allocation Adaptive Modulation Algorithm for MIMO System

  • Fan, Lingyan (Electrical Engineering Department, Shanghai Jiao Tong University) ;
  • He, Chen (Electrical Engineering Department, Shanghai Jiao Tong University) ;
  • Feng, Guorui (Nanyang Technological University)
  • Published : 2007.06.30
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Abstract

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.

Keywords

References

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