Joint Bit and Power Allocation Algorithms for MIMO-OFDM Systems

Xu Wei; Zhao Chun-ming; Gong Xiao-qun; Zhang Li

doi:10.3724/SP.J.1146.2006.00157

Volume 29 Issue 9

Jan. 2011

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Article Navigation > Journal of Electronics & Information Technology > 2007 > 29(9): 2203-2207

Xu Wei, Zhao Chun-ming, Gong Xiao-qun, Zhang Li. Joint Bit and Power Allocation Algorithms for MIMO-OFDM Systems[J]. Journal of Electronics & Information Technology, 2007, 29(9): 2203-2207. doi: 10.3724/SP.J.1146.2006.00157

Citation:

Xu Wei, Zhao Chun-ming, Gong Xiao-qun, Zhang Li. Joint Bit and Power Allocation Algorithms for MIMO-OFDM Systems[J]. Journal of Electronics & Information Technology, 2007, 29(9): 2203-2207. doi: 10.3724/SP.J.1146.2006.00157

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Joint Bit and Power Allocation Algorithms for MIMO-OFDM Systems

doi: 10.3724/SP.J.1146.2006.00157

Received Date: 2006-02-16
Rev Recd Date: 2006-07-20
Publish Date: 2007-09-19

Abstract

Abstract

In this paper, adaptive modulation and power allocation techniques are investigated for MIMO-OFDM systems. A computationally efficient optimal joint bit and power allocation algorithm is proposed. For implementation simplicity, a simplified sub-optimal algorithm exploiting equal power allocation is presented. Simulation results show that the proposed joint allocation algorithm obtains optimal performance with low computational complexity. Moreover, compared with the optimal algorithm using equal power allocation, the presented sub-optimal algorithm reduces the complexity significantly with slight performance degradation.

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References(1)

References

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