Dual-mode antenna selection for spatial multiplexing systems with linear receivers
Dual-mode antenna selection for spatial multiplexing systems with linear receivers
复制标题
具有线性接收器的空间复用系统的双模天线选择
DOI：
--
复制
发表时间：
2003
期刊：
影响因子：
--
通讯作者：
David J. Love
中科院分区：
文献类型：
--
作者：
Robert W. Heath;David J. Love
具有多天线发射机和接收机的无线链路可以用于提供增加的分集和/或大数据速率。多天线通信系统可以同时获得最大的分集增益和最大的速率（或复用）增益。本文提出了一种改进的传统空间复用，允许无线系统获得最大的分集和复用增益与线性接收机的版本。通过在发射选择分集和空间复用之间切换来优化这种分集复用增益折衷。我们表明，这种系统模型可以很容易地实现时，发射机没有任何形式的信道知识，通过使用有限数量的反馈位从接收机到发射机。仿真结果表明，选择分集和空间复用相比，增益。
Wireless links with multi-antenna transmitters and receivers can be used to provide increased diversity and/or large data-rates. It has been shown that multi-antenna communication systems can simultaneously achieve the maximum diversity and maximum rate (or multiplexing) gain. This paper proposes a modified version of traditional spatial multiplexing that allows the wireless system to obtain maximum diversity and multiplexing gain with a linear receiver. This diversity-multiplexing gain tradeoff is optimized by switching between transmit selection diversity and spatial multiplexing. We show that this system model can be easily implemented when the transmitter has no form of channel knowledge by using a limited number of feedback bits from the receiver to the transmitter. Simulation results show gains compared to selection diversity and spatial multiplexing.