Performance Analysis for Multi-Antenna Relay Networks with Limited Feedback Beamforming
Performance Analysis for Multi-Antenna Relay Networks with Limited Feedback Beamforming
复制标题
有限反馈波束成形多天线中继网络的性能分析
DOI:
10.1587/transcom.e94.b.603
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发表时间:
2011-02
影响因子:
0.7
通讯作者:
Song, Zhenfeng
中科院分区:
文献类型:
--
作者:
Liu, Zhen;Wang, Xiaoxiang;Zhang, Hongtao;Song, Zhenfeng
In this letter, we study the performance of multi-antenna relay networks with limited feedback beamforming in decode-and-forward (DF) relaying. Closed-form expression for both outage probability and symbol error rate are derived by using the moment generation function (MGF) of the combined signal-to-noise ratio (SNR) at the destination. Subjected to a total power constraint, we also explore adaptive power allocation between source and relay to optimize the performance. Simulations are given to verify the correctness of our theoretical derivations. Results show that the proposed adaptive power allocation solution significantly outperforms the uniform power allocation method.
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