Trellis, Multilevel, and Turbo Codes with DC-Free Characteristic

Chang Ki JEONG  Eon Kyeong JOO  

IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences   Vol.E83-A   No.12   pp.2706-2714
Publication Date: 2000/12/25
Online ISSN: 
Print ISSN: 0916-8508
Type of Manuscript: PAPER
Category: Coding Theory
DC-free codes,  trellis codes,  multilevel codes,  turbo codes,  

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DC-free error-correcting codes based on partition chain are presented in this paper. The partition chain can be constructed from code partition chain of Reed-Muller codes. The line coding parameters for the partition chain such as maximum runlength and running digital sum are obtained. The trellis and multilevel code structure can be used to design the DC-free error-correcting codes. Especially, by adopting DC-free trellis codes as constituent codes, DC-free turbo codes can be designed. As results, the presented DC-free error-correcting codes have good coding characteristics.