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首页> 外文期刊>Vehicular Technology, IEEE Transactions on >Irregular Convolutional Codes in Multiantenna Bit-Interleaved Coded Modulation Under Iterative Detection and Decoding
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Irregular Convolutional Codes in Multiantenna Bit-Interleaved Coded Modulation Under Iterative Detection and Decoding

机译:迭代检测和解码下多天线比特交织编码调制中的不规则卷积码

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摘要

This paper develops a family of irregular convolutional codes for bit-interleaved coded modulation (BICM) systems under iterative detection and decoding. Irregular convolutional codes are constructed through irregular puncturing over multiple mother codes of different memory. Strategies based on fixed- and variable-size trellises are proposed to connect different memory mother codes. The use of irregular puncturing and code memory yields improved coding efficiency with the aid of extrinsic information transfer charts. Under ergodic and quasi-static fading conditions, multiantenna BICM systems using the proposed codes outperform comparable turbo-coded systems and multilevel coding strategies.
机译:本文针对迭代交织的比特交织编码调制(BICM)系统,开发了一系列不规则卷积码。不规则卷积码是通过对不同内存的多个母码进行不规则打孔而构造的。提出了基于固定和可变大小网格的策略来连接不同的内存母代码。借助外部信息传输图,使用不规则打孔和代码存储可提高编码效率。在遍历和准静态衰落条件下,使用拟议代码的多天线BICM系统的性能优于可比的Turbo编码系统和多级编码策略。

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