DocumentCode
1255223
Title
Serial unequal error-protection codes based on trellis-coded modulation
Author
Asano, David K. ; Kohno, Ryuji
Author_Institution
Dept. of Inf. Eng., Shinshu Univ., Nagano, Japan
Volume
45
Issue
6
fYear
1997
fDate
6/1/1997 12:00:00 AM
Firstpage
633
Lastpage
636
Abstract
Unequal error-protection (UEP) codes that are designed using trellis-coded modulation (TCM) are proposed for use with a single data stream consisting of information with two levels of importance. To achieve UEP, the proposed scheme encodes the data according to the importance of the information by switching between two codes which use different signal constellations. Using simple trellis codes, it is shown that the error rate of the important information is lower than the error rate for an equivalent equal error-protection scheme
Keywords
coding errors; error correction codes; error statistics; trellis coded modulation; BER; TCM; data stream; error rate; important information; serial unequal error protection codes; signal constellations; trellis coded modulation; Character recognition; Communication switching; Communication systems; Constellation diagram; Convolutional codes; Error analysis; Error correction codes; Humans; Modulation coding; Natural languages;
fLanguage
English
Journal_Title
Communications, IEEE Transactions on
Publisher
ieee
ISSN
0090-6778
Type
jour
DOI
10.1109/26.592593
Filename
592593
Link To Document