DocumentCode
971455
Title
TTCM schemes based on time-varying trellis approach
Author
Jiang, Sen ; Bai, B.M. ; Leung, Chi Sing ; Li, Ping ; Sun, Hong
Author_Institution
Coll. of Electron. & Inf., Wuhan Univ., China
Volume
38
Issue
25
fYear
2002
fDate
12/5/2002 12:00:00 AM
Firstpage
1694
Lastpage
1696
Abstract
An efficient time-varying trellis approach is proposed for turbo trellis coded modulation (TTCM). Using a time-varying trellis, the efficient free Euclidean distance is increased, thus improving the performance of TTCM. Experimental results show that the bit error rate (BER) of the proposed time-varying TTCM is better than that of the conventional TTCM scheme. Also, compared with an eight-state time-invariant TTCM scheme, a two-state time-varying TTCM scheme can achieve nearly the same BER performance.
Keywords
error statistics; time-varying systems; trellis coded modulation; turbo codes; BER; TTCM schemes; bit error rate; efficient free Euclidean distance; time-varying trellis approach; turbo trellis coded modulation; two-state time-varying TTCM scheme;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:20021129
Filename
1137471
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