Structured trellis encoding
作者:
G.Zou,
H.Weinrichter,
期刊:
IEE Proceedings I (Communications, Speech and Vision)
(IET Available online 1990)
卷期:
Volume 137,
issue 6
页码: 335-344
年代: 1990
DOI:10.1049/ip-i-2.1990.0046
出版商: IEE
数据来源: IET
摘要:
We propose a systematic trellis encoding technique based on trellis partitioning and on newly defined branch distances. This encoding technique avoids the usual exhaustive search for finding good trellis codes. It gives the lower and upper bounds on free distance which depend only on the encoder memory and the signal space. We also discuss the optimal combination of signal set and trellis and give the sufficient condition for avoiding catastrophic codes.
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