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A Channel Adaptive Power Allocation Scheme Based on SLNR Precoding for Multiuser MIMO Systems

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4 Author(s)
Jie Wang ; Nat. Mobile Commun. Res. Lab., Southeast Univ., Nanjing, China ; Xiaotian Wang ; Yongliang Guo ; Xiaohu You

In the downlink of multiuser MIMO (MU-MIMO) systems, the co-channel interference (CCI) and noise are two major impairments. Maximizing signal to leakage plus noise ratio (SLNR) is a good criterion for the design of precoders since it making a balance between eliminating the CCI and noise. In this text, we propose a channel adaptive power allocation scheme based on SLNR precoding. Simulation results show that the proposed scheme can improve the BER performance considerably with a minor loss in the sum capacity performance. And we also illustrate that the additional computational complexity is very small.

Published in:

Vehicular Technology Conference Fall (VTC 2010-Fall), 2010 IEEE 72nd

Date of Conference:

6-9 Sept. 2010