Multiple symbol differential sphere decoding for unitary space-time modulation in continuous fading

被引：0

作者：

School of Electronic Science and Engineering, National University of Defense Technology, Changsha 410073, China ^{[1
]}

机构：

来源：

Tongxin Xuebao | 2007年 / 4卷 / 87-94期

关键词：

Decoding - Maximum likelihood - Modulation - Phase shift keying - Signal to noise ratio;

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摘要：

Based on the assumption of continuous fading, a multiple symbol differential approximate automatic sphere decoding (MSDAASD) algorithm was developed by incorporating a recursive form of an approximate maximum-likelihood (ML) metric into automatic sphere decoding. The proposed algorithm is suitable for arbitrary unitary constellations and eliminates the error floor caused by in multiple symbol differential sphere decoding (MSDSD) with quasi-static channel assumption. Compared with decision-feedback detection under the same assumption, MSDAASD achieves similar performance of ML detection with much lower complexity at moderate to high signal-to-noise ratios.

引用

页码：87 / 94