论文标题
在非平稳大规模MIMO通道模型下空间调制系统的BER性能
BER Performance of Spatial Modulation Systems Under a Non-Stationary Massive MIMO Channel Model
论文作者
论文摘要
在本文中，在理论上和通过基于非平稳的Kronecker的大量多输入 - 元素输出（MIMO）通道模型中的模拟进行了空间调制系统（SM）系统的BIT错误率（BER）性能。在本文中，使用时间分段多重访问（TDMA）方案和基于块对角线化（BD）的预编码方案，为不同的系统设置考虑了大规模的MIMO SM系统。将它们的性能与基于垂直的铃铛实验室分层时空（V-Blast）架构系统和常规通道反转系统进行比较。据观察，由于亚渠道之间的相关性较低，较高的群集演化因子可能会导致SM系统的BER性能更好。与BD-SM系统相比，使用TDMA方案的SM系统获得了更好的BER性能，但总系统数据速率要低得多。 BD-MU-SM系统在所有考虑的系统之间实现了数据速率和BER性能之间的最佳权衡。与V-Blast系统和通道反转系统相比，SM方法在MU大型MIMO系统的性能方面具有优势。
In this paper, the bit error rate (BER) performance of spatial modulation (SM) systems is investigated both theoretically and by simulation in a non-stationary Kronecker-based massive multiple-input-multiple-output (MIMO) channel model in multi-user (MU) scenarios. Massive MIMO SM systems are considered in this paper using both a time-division multiple access (TDMA) scheme and a block diagonalization (BD) based precoding scheme, for different system settings. Their performance is compared with a vertical Bell labs layered space-time (V-BLAST) architecture based system and a conventional channel inversion system. It is observed that a higher cluster evolution factor can result in better BER performance of SM systems due to the low correlation among sub-channels. Compared with the BD-SM system, the SM system using the TDMA scheme obtains a better BER performance but with a much lower total system data rate. The BD-MU-SM system achieves the best trade-off between the data rate and the BER performance among all of the systems considered. When compared with the V-BLAST system and the channel inversion system, SM approaches offer advantages in performance for MU massive MIMO systems.
