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首页> 外文期刊>IEEE Transactions on Communications >Performance Analysis of Uplink Massive Multiuser SM-MIMO System With Imperfect Channel State Information
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Performance Analysis of Uplink Massive Multiuser SM-MIMO System With Imperfect Channel State Information

机译：具有不完美信道状态信息的上行链路大量多用户SM-MIMO系统的性能分析

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摘要

In this paper, the error performance and spectrum efficiency (SE) of uplink massive multiuser spatial modulation (SM) MIMO systems with zero-forcing detection for perfect and imperfect channel state information (CSI) are investigated over composite Rayleigh fading channels. We firstly derive the error probabilities of transmit antenna index detection and transmitted symbol detection of each user. Using these results, the bit error rate (BER) performance of the system under perfect CSI is analyzed. Furthermore, a closed-form average BER of the system is derived. We generalize the analytical results of perfect CSI to those of imperfect CSI for practicality, and derive a closed-form BER for the system with imperfect CSI. Based on this, two asymptotic BER expressions are developed to characterize the error performance of the system for large-scale receive antennas and high SNR. By means of the asymptotic expressions, the diversity order of the system is attained. Besides, we derive a lower bound on the achievable SE of the system with imperfect CSI. With this lower bound, an approximate expression of the achievable SE is obtained in closed form. Simulation results indicate that our theoretical analysis is valid, and agrees with simulation results well.
机译：本文在复合瑞利衰落通道上研究了具有零强制检测的上行链路大量多用户空间调制（SM）MIMO系统的误差性能和频谱效率（SM）MIMO系统（CSI）。我们首先导出了每个用户的发送天线索引检测和发送符号检测的错误概率。使用这些结果，分析了在完美CSI下系统的误码率（BER）性能。此外，推导出系统的闭合形式平均BER。我们将完美CSI的分析结果概括为实用性的不完美CSI的分析结果，并为具有不完美CSI的系统推导出封闭式BER。基于此，开发了两个渐近BER表达式，以表征系统的误差性能，用于大型接收天线和高SNR。通过渐近表达式，达到了系统的分集序。此外，我们通过不完美的CSI获得了可实现的系统的下限。通过这种下限，以封闭形式获得可实现的SE的近似表达。仿真结果表明，我们的理论分析有效，并同意仿真结果良好。

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