On signal strength and multipath richness in multi-input multi-output systems

被引：0

作者：

Svantesson, T ^{[1
]}

Wallace, J ^{[1
]}

机构：

[1] Brigham Young Univ, Dept Elect & Comp Engn, Provo, UT 84602 USA

来源：

2003 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS, VOLS 1-5: NEW FRONTIERS IN TELECOMMUNICATIONS | 2003年

关键词：

D O I：

暂无

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

A common practice when analyzing systems using multiple antennas at both ends is to focus on the multipath properties and normalize the SNR out of the channel matrix. This paper studies the relationship between the signal strength and multipath richness using indoor measurements taken at the Brigham Young University campus. It is found that the SNR and the multipath richness can be strongly correlated. Hence, some caution is needed when normalizing out the SNR in system performance studies. Furthermore, for an unnormalized channel, the channel capacity usually rises when moving from NLOS into LOS since the loss in multipath is more than compensated for by an increase in SNR. A theoretical study also reveals that for moderate sized systems, the required SNR increase for a LOS channel to yield the same channel capacity as a NLOS channel is not very large.

引用

页码：2683 / 2687

页数：5

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