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Soft-Decision Decoder Employing Eigenvalue of Channel Matrix in MIMO Systems

机译:MIMO系统中信道矩阵特征值的软判决解码器

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摘要

The number of users and services in mobile communications is increasing rapidly, and that requires efficient use of the available frequency band. MIMO (Multi-Input Multi-Output) systems are one possible candidate to meet these demand. We have shown that the minimum eigenvalue power of the channel matrix indicates the effective carrier power in MIMO systems. This paper proposes a new soft-decision decoder employing eigenvalue of channel matrix as a weighting factor in MIMO systems. BER performance is calculated under Rayleigh fading channels. The results show that the proposed decoder gives a margin of about 5 dB at BER=10{sup}(-4) compared to the conventional decoder employing received power as a weighting factor.
机译:移动通信中的用户和服务的数量正在迅速增加,这需要有效利用可用频带。 MIMO(多输入多输出)系统可以满足这些需求。我们已经证明,信道矩阵的最小特征值功率表示MIMO系统中的有效载波功率。提出了一种新的基于信道矩阵特征值作为MIMO系统加权因子的软判决解码器。 BER性能是在瑞利衰落信道下计算的。结果表明,与采用接收功率作为加权因子的常规解码器相比,所提出的解码器在BER = 10 {sup}(-4)时具有约5 dB的余量。

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