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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 >Experiments on coherent adaptive antenna array diversity receiver with antenna weights-updating using I/Q-code multiplexed pilot and decision feedback data symbols after channel decoding in W-CDMA reverse link
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Experiments on coherent adaptive antenna array diversity receiver with antenna weights-updating using I/Q-code multiplexed pilot and decision feedback data symbols after channel decoding in W-CDMA reverse link

机译：使用I / Q码复用导频和判定反馈数据符号在W-CDMA反向链路中的信道解码之后使用I / Q码多路复用导频和判定反馈数据符号进行相干自适应天线阵列分集转接器的实验

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摘要

The receiver antenna weights-updating using I/Q-code multiplexed pilot and decision feedback data symbols after channel decoding to the mean squared error (MSE) generation and channel estimation (also for Rake combining) was proposed for coherent adaptive antenna array diversity (CAAAD) receiver with 4-antenna and its performance was experimentally investigated in W-CDMA reverse link. Experimental results indicated that the required transmit E{sub}b/N{sub}0 for the average BER of 10{sup}(-3) using the proposed receiver antenna weights-updating could be decreased by approximately 1.0 and 1.2 dB compared to the weight-updating with only pilot symbols when the average received SIR was -6 and 12 dB, respectively for 2-user environment, and that the improvement of the required transmit E{sub}b/N{sub}0 using the proposed antenna weights-updating of approximately 1.0-1.2 dB was achieved irrespective of the relative directions of arrival (DOA) relation of the desired and interfering users.
机译：提出了使用I / Q码复用的导频和判定反馈数据符号的接收器天线权重，以便对平均平衡误差（MSE）生成和信道估计（也用于耙组合），以进行相干自适应天线阵列分集（CAAAD ）具有4天线的接收器及其性能在W-CDMA反向链路中实验研究。 实验结果表明，使用所提出的接收器天线权重更新的10 {SUP}（ - 3）的平均BER的所需发送E {Sub} B / N {SUB} 0可以减少约1.0和1.2dB。 当平均接收SIR为-6和12 dB的平均值符号的重量更新分别用于2个用户环境，并且使用所提出的天线的所需传输E {Sub} 0的改进 无论所需和干扰用户的相对方向（DOA）关系如何，才能实现约1.0-1.2 dB的权重。

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