Browsing by Author "Chang, Yun-Liang"

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Irregular puncturing for convolutional codes and the application to unequal error protection
(2006)
Wang, Chung-Hsuan
;
Wang, Shih-Chieh
;
Chang, Yun-Liang
;
電信工程研究所
;
Institute of Communications Engineering
In this paper, convolutional codes are studied for puncturing with irregular puncturing periods. Irregular puncturing can generate punctured codes with more available rates and better bit-error-rate performance compared with the conventional scheme with a single puncturing period. For the application to unequal error protection, a new multiplexing scheme is also proposed for rate-compatible punctured convolutional (RCPC) codes which can guarantee smooth transition between rates without extra overheads. Finally, families of good RCPC codes with irregular puncturing tables are given by a computer search.