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CDMA distributed antenna system for indoor wireless communications

机译:用于室内无线通信的CDMA分布式天线系统

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This paper introduces an architecture and gives preliminary analysis of an indoor wireless CDMA communication system using a distributed antenna. The architecture is suitable to an environment affected by a large degree of shadowing. In such an environment if the data rate is not excessively high then due to the relatively small excess delays the channel exhibits relatively flat fading. The CDMA antenna concept is a means to artificially increase the excess delay so as to create frequency selective fading over the bandwidth of the transmitted signal, hence, frequency diversity is effectively achieved through the use of a Rake receiver. The architecture is applicable in scenarios where a leaky-feeder cable has traditionally been employed.
机译:本文介绍了一种架构,并使用分布式天线对室内无线CDMA通信系统进行初步分析。 该架构适用于受大程度受阴影影响的环境。 在这样的环境中,如果数据速率不受过高的那样,由于相对较小的多余延迟,通道呈现相对扁平的衰落。 CDMA天线概念是一种人为地提高多余延迟的装置,以便在传输信号的带宽上产生频率选择性衰落,因此通过使用rake接收器有效地实现频率分集。 该架构适用于传统上采用漏水电缆的情况。

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