时空网格码的迭代译码及其实现问题

Conference Record of the Thirty-Fourth Asilomar Conference on Signals, Systems and Computers (Cat. No.00CH37154) Pub Date : 2000-12-01 DOI:10.1109/ACSSC.2000.911018

Z. Chi, Zhongfeng Wang, K. Parhi

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引用次数: 7

摘要

对于在无线衰落信道上的高数据速率传输，采用空时栅格编码技术可以显著提高通信系统的信息容量。本文研究了串接空时格码和卷积码的迭代译码方案。在准静态和快速平坦衰落信道上传输的某些空时格码除了具有分集优势外，还可以获得额外的编码增益。本文还对相关的VLSI实现问题进行了预研究，包括串行连接时空网格涡轮解码器的有限字长分析和硬件节省策略。

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Iterative decoding of space-time trellis codes and related implementation issues

For high data rate transmission over wireless fading channels, space-time trellis coding techniques can be employed to increase the information capacity of the communication system dramatically. In this paper, we consider the scenario of iterative decoding of concatenated space-time trellis codes and convolutional codes. Extra coding gains in addition to the diversity advantage are shown to be achieved for certain space-time trellis codes transmitted over both quasi-static and fast flat fading channels. A prestudy of related VLSI implementation issues is also presented which includes the finite word-length analysis for serial concatenated space-time trellis turbo decoders and hardware saving strategies.

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Conference Record of the Thirty-Fourth Asilomar Conference on Signals, Systems and Computers (Cat. No.00CH37154)

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