Title :
Source-channel coding with multiple classes
Author :
Bocharova, Irina E. ; Guillen i Fabregas, Albert ; Kudryashov, Boris D. ; Martinez, A. ; Tauste Campo, Adria ; Vazquez-Vilar, Gonzalo
Author_Institution :
St. Petersburg Univ. of Inf. Technol., St. Petersburg, Russia
fDate :
June 29 2014-July 4 2014
Abstract :
We study a source-channel coding scheme in which source messages are assigned to classes and encoded using a channel code that depends on the class index. While each class code can be seen as a concatenation of a source code and a channel code, the overall performance improves on that of separate source-channel coding and approaches that of joint source-channel coding as the number of classes increases. The performance of this scheme is studied by means of random-coding bounds and validated by simulation of a low-complexity implementation using existing source and channel codes.
Keywords :
combined source-channel coding; class code; random coding bounds; source channel coding; source messages; AWGN; Decoding; Joints; Presses;
Conference_Titel :
Information Theory (ISIT), 2014 IEEE International Symposium on
Conference_Location :
Honolulu, HI
DOI :
10.1109/ISIT.2014.6875086