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首页> 外文期刊>電子情報通信学会技術研究報告. 無線通信システム. Radio Communication Systems >Coherent multistage interference canceller using multiple antennas reception coupled with space/polarization diversity techniques in DS-CDMA reverse link
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Coherent multistage interference canceller using multiple antennas reception coupled with space/polarization diversity techniques in DS-CDMA reverse link

机译：使用多个天线接收的相干多级干扰消除器与DS-CDMA反向链路中的空间/偏振分集技术耦合

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摘要

This paper proposes parallel-type coherent multistage interference canceller (COMSIC) with iterative channel estimation using multiple antenna reception coupled with space/polarization diversity and investigates its interference suppression effect in the DS-CDMA reverse link. Simulation results elucidates that when the antenna configuration with B blocks, each comprising D antennas with high fading correlation, is used, maximum capacity is achieved with B =2 from the tradeoff between the improving diversity effect and channel estimation accuracy, and that the increase of the required average transmit E{sub}b/N{sub}0 at the average BER of 10{sup}(-3) when the number of simultaneous users is 120 from that of single user case is only approximately 2.0 dB when the spreading factor was SF = 16 with space diversity reception (B = 2 and D = 4). It is also clarified that although the required transmit E{sub}b/N{sub}0 coupled with polarization diversity is increased, space needed for antenna implementation is decreased compared the case using space diversity.
机译：本文提出了具有迭代信道估计的并行型相干多级干扰消除器（COMSIC），所述多个天线接收耦合与空间/偏振分集，并在DS-CDMA反向链路中研究其干扰抑制效果。仿真结果阐明了当使用具有高衰落相关性的B块的天线配置包括具有高衰落相关性的D天线时，通过提高分集效应和信道估计精度之间的折衷来实现最大容量，从而增加当同时用户的数量为120，从单个用户案例的数量为120时，所需的平均值在10 {sup}（ - 3）的平均值的{sub} b / n {sub} 0仅为2.0 dB的扩展因子是SF = 16，空间分集接收（B = 2和D = 4）。还阐明了虽然具有偏振分集的所需发送E {Sub} B / N {Sub} 0增加，但是使用空间分集比较天线实现所需的空间。

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