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Effects of Erroneous CSI on the Performance of Multiple-Transmit Antenna Selection

机译:错误CSI对多发射天线选择性能的影响

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The paper assumes that the channel state information (CSI) is available at the receiver and is known partially at the transmitter through a feedback channel. The bit error rate (BER) performance of multiple transmit antenna selection (MTAS) for the multiple-input and single-output (MISO) system with STBC (MTAS/MISO-STBC) will be investigated in detail. Meanwhile, the selection criterion that maximizes the channel Frobenius norm or minimizes the error probability of MTAS/MISO-STBC system is employed. In two cases of erroneous CSI (ECSI) and inerrable CSI (ICSI), wireless channels of the MTAS systems are modeled and their analytical expressions are derived. For the case of ICSI, the exact BER expressions of the Chernoff upper bound (CUB) for both the MISO-STBC system of full complexity and MTAS system are evaluated, respectively. Next, for the ECSI case, a comprehensive analytical expression of BER CUB for the same system is derived in detail. Finally, extensive Monte-Carlo simulations are presented to support and validate our numerical analysis proposed in this paper. Both the simulating results and the numerical results show that MTAS can reduce effectively the effect of the erroneous CSI.
机译:本文假设信道状态信息(CSI)在接收器处可用,并且通过反馈信道部分地在发射机处被众所周知。将详细研究用于多输入和单输出(MISO)系统的多发射天线选择(MTA)的误码率(BER)性能,并详细研究了具有STBC(MTAS / MISO-STBC)的误差率(MTA)。同时,采用了最大化通道纤维纤维规范或最小化MTAS / MISO-STBC系统的误差概率的选择标准。在两个错误的CSI(ECSI)和ICARABLE CSI(ICSI)的情况下,MTAS系统的无线通道被建模,并导出其分析表达式。对于ICSI的情况,分别分别评估了对全复杂性和MTAS系统的MISO-STBC系统的Chernoff上限(CUB)的精确BER表达。接下来,为了ECSI案例,详细得出了同一系统的BER CUB的综合分析表达。最后,提出了广泛的Monte-Carlo模拟,以支持和验证本文提出的数值分析。模拟结果和数值结果表明,MTA可以有效地减少错误CSI的效果。

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