使用软件定义无线电测试平台比较alamouti和STS的实现

2009 3rd International Conference on Signal Processing and Communication Systems Pub Date : 2009-10-30 DOI:10.1109/ICSPCS.2009.5306376

Shinhan Wee, M. Ros, P. Vial

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引用次数: 2

摘要

在Unix计算机上安装了一个使用Gnu Radio项目的软件定义无线电测试平台，并对其进行了修改，以便对多输入多输出(MIMO)系统的信道状态系数进行估计，以利用2.4GHz频率的时空传输。实现了两种MIMO技术，一种是基于Alamouti，另一种是基于时空扩展。描述了用于估计信道系数的技术。比较了两种系统在使用二相移键控时的误码率性能，发现当两个发射信道中的一个经历较大的衰落事件时，STS系统的性能更好。

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Comparison of alamouti and STS implementations using a Software Defined Radio test bed

A Software Defined Radio test bed using the Gnu Radio project was installed on Unix computers and modified so that estimates of the channel state coefficients were taken for a Multiple Input Multiple output (MIMO) system to take advantage of space time transmission at a frequency of 2.4GHz. Two MIMO techniques were implemented, one based on Alamouti and the other on Space Time Spreading. The technique used to estimate channel coefficients is described. The Bit Error Rate performance was compared, when using Binary Phase Shift Keying, between the two systems and it was found that the STS system performed better when one of the two transmit channels experienced a large fading event.

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2009 3rd International Conference on Signal Processing and Communication Systems

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