Performance Analysis for Multi-Antenna Relay Networks with Limited Feedback Beamforming

Performance Analysis for Multi-Antenna Relay Networks with Limited Feedback Beamforming
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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
Song, Zhenfeng
中科院分区:
计算机科学4区
文献类型:
--
作者:
Liu, Zhen;Wang, Xiaoxiang;Zhang, Hongtao;Song, Zhenfeng

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在这封信中,我们研究了解码转发(DF)中继中具有有限反馈波束成形的多天线中继网络的性能。通过使用目的地组合信噪比(SNR)的矩生成函数(MGF)导出中断概率和误码率的闭合形式表达式。 Subjected to a total power constraint, we also explore adaptive power allocation between source and relay to optimize the performance.仿真验证了我们理论推导的正确性。结果表明,所提出的自适应功率分配解决方案明显优于统一功率分配方法。
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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