一种改进V-BLAST迭代检测算法的方案

2010 IEEE International Conference on Wireless Communications, Networking and Information Security Pub Date : 2010-06-25 DOI:10.1109/WCINS.2010.5541743

Wenbai Chen, Xiaoqin Zhang, Wei Li

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引用次数: 0

摘要

传统的V-BLAST检测算法基于序次逐次干扰抵消(OSIC)。在迭代算法中，低分集子流被高分集子流的决策形式解码，性能得到了很大的提高，但代价是迭代重复过多。为了降低计算复杂度，本文提出了一种改进的迭代检测方法。改进方案大大提高了第一子流的性能，减少了迭代重复，实现了性能与计算复杂度的平衡。仿真结果表明，改进方案的性能与常规迭代OSIC算法基本一致，但计算量相对较低。

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An scheme improved on iterative detection algorithm for V-BLAST

Traditional detection algorithm for V-BLAST is based on Order Successive Interference Cancellation (OSIC). Using iterative algorithm, the low-diversity substreams are decoded by decisions form of high-diversity substreams, the performance is highly improved at a cost of too much iterative repetition. To decrease computational complexity, an improved scheme for iterative detection method was proposed in this paper. Improving the performance of the first substream greatly and reducing iterative repetition, the improved scheme achieves the balance of performance and computation complexity. Simulation results show that the improve scheme obtains nearly the same performance with that of normal iterative OSIC algorithm, but the computational complexity is low comparatively.

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2010 IEEE International Conference on Wireless Communications, Networking and Information Security

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