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A low complexity turbo adaptive interference cancellation using antenna arrays for W-CDMA

机译:使用天线阵列进行W-CDMA的低复杂性Turbo自适应干扰消除

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This paper investigates an adaptive iterative space-time interference cancellation receiver for Wideband Code Division Multiple Access (W-CDMA). Each iteration of the interference cancellation includes adaptive beamforming, adaptive path-combining and soft-input soft-output decoding. The complexity of the demodulation process using very simple Normalized Least Mean Square (N-LMS) adaptive algorithms is limited with no need of space-time channel estimation. Adaptive space-time processing algorithms are shown to benefit from the iterative process. Simulation results on a UMTS-like scenario show that this receiver achieves performance that is very close to the single user bound, even for highly interfered networks.
机译:本文研究了用于宽带码分多址(W-CDMA)的自适应迭代时空干扰消除接收器。干扰消除的每次迭代包括自适应波束形成,自适应路径组合和软输入软输出解码。使用非常简单的归一化最小均值(n-LMS)自适应算法的解调过程的复杂性受到限制,不需要时空信道估计。自适应时空处理算法显示可从迭代过程中受益。仿真结果在UMTS的情况下表明,即使对于高度干扰的网络,该接收器也能实现非常接近单个用户绑定的性能。

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