Effect of correlation between azimuth spread and Rician K-factor on MIMO performance
Effect of correlation between azimuth spread and Rician K-factor on MIMO performance
复制标题
方位角扩展和莱斯 K 因子之间的相关性对 MIMO 性能的影响
DOI：
10.1109/iscit.2010.5665116
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发表时间：
2010
期刊：
影响因子：
--
通讯作者：
Y. Miyanaga
中科院分区：
文献类型：
--
作者：
Xilu Liu;C. Siriteanu;S. Yoshizawa;Y. Miyanaga
In this paper, we study, for the first time, the effect on multiple-input multiple-output (MIMO) wireless communications system performance of recently measured statistical relationships among the azimuth spread at the base station (ASb), the azimuth spread at the mobile station (ASm), and the Rician K-factor. We construct a 4 × 4 MIMO channel model with lognormally-distributed and correlated ASb, ASm, and K and use this model to simulate the performance of the IEEE 802.11n standard. We find that that disregarding the distributions and correlations of these parameters may yield unrealistic MIMO performance expectations. For example, accounting for recently-measured distributions and correlations for ASb, ASm, and K yields more than 4 dB improvement at 10−4 average bit-error rate (BER) for 16-QAM and orthogonal deterministic component of the MIMO channel matrix. While in another situation whose deterministic component is rank-deficient, to achieve the expected BER, we may have to put more power in practice.
