Performance Analysis of Cooperative Diversity Networks with Imperfect Channel Estimation
Performance Analysis of Cooperative Diversity Networks with Imperfect Channel Estimation
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DOI：
10.1109/icc.2010.5502097
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发表时间：
2010-05
期刊：
影响因子：
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通讯作者：
S. Ikki;Osama Amin;M. Uysal
中科院分区：
文献类型：
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作者：
S. Ikki;Osama Amin;M. Uysal
本文研究了信道估计误差对放大转发多中继系统误码率性能的影响。我们考虑了正交中继，同时研究了传统的协作系统(即所有的中继器都参与到中继阶段)和机会协作系统(即只有最好的中继器才参与到中继阶段)。在推导出考虑信道估计误差的接收端有效信噪比的基础上，得到了误码率的闭合表达式。通过蒙特卡罗模拟进一步验证了分析结果。
In this paper, we investigate the effect of channel estimation error on the error rate performance of a multi-relay system with amplify-and-forward relaying. We consider orthogonal relaying and study both conventional cooperative systems (i.e., all relays participate in the relaying phase) and opportunistic cooperative systems (i.e., only the best relay participates in the relaying phase). Based on the derivation of effective signal-to-noise ratio at the receiver taking into account channel estimation error, we obtain closed-form expressions for bit error rate. Monte-Carlo simulations are further provided to confirm the analytical results.