瑞利衰落信道上空时分组码的串接与多电平编码

IEEE 54th Vehicular Technology Conference. VTC Fall 2001. Proceedings (Cat. No.01CH37211) Pub Date : 2001-10-07 DOI:10.1109/VTC.2001.956584

D. Yuan, Feng Zhang, A. So, Zuo-Wei Li

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引用次数: 17

摘要

空时分组码(STBC)是为了实现最大可能的分集效益而设计的。但是，STBC需要与提供显著编码增益的外部代码连接。基于容量规则和多级码/多级解码(MLC/MSD)系统，提出了STBC和MLC/MSD的三种串接方案。根据容量规则选择穿孔卷积码作为分量码。分析了不同硬、软连接方案的性能，并对Ungerboeck分区(UP)、块分区(BP)和混合分区(MP)三种映射策略进行了性能比较。然后，我们提出了移动环境下的最佳连接方案。

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Concatenation of space-time block codes and multilevel coding over Rayleigh fading channels

Space-time block codes (STBC) are designed to achieve the maximum possible diversity benefit. However, STBC needs to be concatenated with an outer code which provides a significant coding gain. Based on the capacity rule and a multilevel codes/multi-stage decoding (MLC/MSD) system, this paper presents three concatenation schemes of STBC and MLC/MSD. Punctured convolutional codes are selected as component codes according to the capacity rule. The performances of different hard and soft concatenation schemes are analyzed and performance comparisons are made for three mapping strategies, named Ungerboeck partitioning (UP), block partitioning (BP) and mixed partitioning (MP). Then, we present the best concatenation scheme for a mobile environment.

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IEEE 54th Vehicular Technology Conference. VTC Fall 2001. Proceedings (Cat. No.01CH37211)

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