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首页> 外文期刊>Information Theory, IEEE Transactions on >Optimum Receiver Design and Performance Analysis of Arbitrarily Correlated Rician Fading MIMO Channels With Imperfect Channel State Information
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Optimum Receiver Design and Performance Analysis of Arbitrarily Correlated Rician Fading MIMO Channels With Imperfect Channel State Information

机译：具有不完善信道状态信息的任意相关Rician衰落MIMO信道的最优接收机设计和性能分析

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摘要

The error performance of different types of receivers over an arbitrarily correlated Rician fading MIMO channel is assessed by evaluating the decision metric and the pairwise error probability. The differences are in the way channel state information at the receiver (CSIR) is recovered. We consider: i) a genieaided receiver, based on the perfect knowledge of CSIR; ii) a mismatched receiver, based on the use of pilot-aided (imperfect) CSIR in the perfect-CSIR decision metric; iii) an optimum receiver, based on perfect channel distribution information at the receiver (CDIR), which performs jointly channel and data estimation. In this paper, the decision metric of the optimum receiver is derived, and an iterative algorithm is proposed to calculate it for sequential decoding schemes. The complexity of this iterative algorithm is analyzed and compare against the complexity of the mismatched receiver. Closed-form expressions are given for the pairwise error probabilities (PEPs) of the three receivers with arbitrarily correlated Rician fading. These expressions are further processed to obtain the asymptotic (in the SNR) PEPs, the diversity order, and the asymptotic power losses. Numerical results are presented to support the validity of this analysis and to assess the impact of power efficiency and CDIR estimation errors on the PEP versus the ¿b/N0 ratio.
机译：通过评估决策指标和成对错误概率，可以评估任意相关的Rician衰落MIMO信道上不同类型接收机的错误性能。区别在于在接收器（CSIR）上恢复信道状态信息的方式。我们考虑：i）基于CSIR的完善知识的灵巧接收机； ii）不匹配的接收器，基于在完全CSIR决策度量中使用导频辅助（不完美）的CSIR； iii）基于接收器（CDIR）上的完美信道分布信息的最佳接收器，该联合接收器将执行信道和数据估计。本文推导了最优接收器的决策度量，并提出了一种迭代算法来计算它，以用于顺序解码方案。分析了该迭代算法的复杂度，并将其与不匹配接收器的复杂度进行比较。对于具有任意相关的Rician衰落的三个接收器的成对错误概率（PEP），给出了闭式表达式。进一步处理这些表达式以获得渐近（在SNR中）PEP，分集阶数和渐近功率损耗。提出了数值结果，以支持此分析的有效性，并评估电源效率和CDIR估计误差对PEP与ƒÂ，，b / N0比的影响。

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