Outage Performance of a Multiuser Distributed Antenna System in Underwater Acoustic Channels

Outage Performance of a Multiuser Distributed Antenna System in Underwater Acoustic Channels
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水下声学通道中多用户分布式天线系统的断电性能

DOI：
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发表时间：
2014
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影响因子：
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通讯作者：
P. Willett
P. Willett
中科院分区：
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文献类型：
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作者：
Zhaohui Wang;Shengli Zhou;Zhengdao Wang;J. Catipovic;P. Willett

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分布式天线系统（DAS）以在地面无线电环境中提供较大的覆盖范围和吞吐量而闻名。在这项工作中，我们研究了在水下声学（UWA）环境中，DA相对于集中式天线系统（CAS）的好处。特别是，我们分析了宽带上行链路传输中的中断性能。基于理论推导和数值结果，我们表明，在中等传输SNR状态下，DAS在单用户和多源系统中都优于CAS。为了解决多源DAS中的对手的干扰，我们建议使用多层结构，该结构相对于将操作区域作为单个单元格的结构显示出较低的中断误差地板。
The distributed antenna system (DAS) has been known for providing a large coverage and throughput in terrestrial radio environments. In this work, we investigate the benefits of DAS relative to the centralized antenna system (CAS) in underwater acoustic (UWA) environments. In particular, we analyze the outage performance in the wideband uplink transmissions. Based on theoretical derivation and numerical results, we show that at a medium transmission SNR regime, DAS outperforms CAS in both single-user and multiuser systems. To address the cochannel interference in the multiuser DAS, we suggest a multicell structure, which is shown having a lower outage error floor relative to the structure which takes the operation area as a single cell.