Fundamental Simulated Performance of Downlink Fixed Wireless Cellular Networks with Multiple Antennas
Fundamental Simulated Performance of Downlink Fixed Wireless Cellular Networks with Multiple Antennas
复制标题
具有多天线的下行链路固定无线蜂窝网络的基本模拟性能
DOI：
10.1109/pimrc.2005.1651419
复制
发表时间：
2005
期刊：
影响因子：
--
通讯作者：
R. Valenzuela
中科院分区：
文献类型：
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作者：
Howard C. Huang;R. Valenzuela
用于空间复用(SM)和空分多址(SDMA)的多天线技术是提高频谱效率的有效方法。我们使用几个基本参数来描述下行固定无线系统，包括每条链路的天线数目、每小区的扇区数目和频率重用计划，并通过仿真研究它们对系统频谱效率和用户峰值速率的影响。以这种方式表征系统有助于深入了解固定无线系统的基本性能以及SM和SDMA之间的权衡，这些权衡独立于特定的空中接口实现。我们的结论是，对于给定数目的发射和接收天线，SM对于提高用户峰值速率是有效的，而SDMA对于提高系统频谱效率是更有效的
Multiple antenna techniques for spatial multiplexing (SM) and spatial division multiple access (SDMA) are efficient ways to increase spectral efficiency. We characterize downlink fixed wireless systems using a few essential parameters - including number of antennas per link, number of sectors per cell, and frequency reuse plan - and study their impact on the system spectral efficiency and user peak rates through simulation. Characterizing the system in this way provides insight into the fundamental performance of fixed wireless systems and tradeoffs between SM and SDMA that are independent of specific air interface implementations. We conclude that for a given number of transmit and receive antennas, SM is efficient for increasing user peak rates, but SDMA is more efficient for increasing system spectral efficiency