Experimental study of antenna arrays in indoor wireless applications
Experimental study of antenna arrays in indoor wireless applications
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室内无线应用中天线阵列的实验研究
DOI：
10.1109/acssc.1995.540804
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发表时间：
1995
期刊：
影响因子：
--
通讯作者：
W. Vogel
中科院分区：
文献类型：
--
作者：
S. Jeng;G. Xu;H. Lin;W. Vogel
空间特征是天线阵列对某一位置的移动单元的响应向量。不同位置的移动用户表现出不同的空间特征。利用空间分集（或空间特征的差异）是空分多址（SDMA）方案的基本思想，可以显著提高无线通信系统的信道容量和质量，对抗多径衰落。本文的目的是描述利用我们的天线阵列（或智能天线）试验台进行的室内实验，研究矢量信道在各种室内场景下的传播特性。结果包括室内方位角扩展和终端位移引起的空间特征变化。实验结果表明，在室内无线应用（如无线局域网）中使用天线阵列具有丰富的空间多样性和潜在的优势。
A spatial signature is the response vector of an antenna array to a mobile unit at a certain location. The mobile subscribers at different locations exhibit different spatial signatures. The exploitation of spatial diversity (or difference of spatial signatures) is the basic idea of the so-called space-division-multiple-access (SDMA) scheme, which can be used to significantly increase the channel capacity and quality and combat multipath fading in a wireless communication system. The purpose of this paper is to describe indoor experiments conducted with our antenna array (or smart antenna) testbed to study the vector channel propagation characteristics in various indoor scenarios. The results to be presented include indoor DOA angle spread and spatial signature variation due to terminal displacement. The experimental results show the rich spatial diversity and potential benefits of using an antenna array for indoor wireless applications, such as wireless local area networks (LANs).