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Low Density Parity Check Codes for Hybrid ARQ System  

Kim, Woo-Tae (삼성전자 정보통신총괄 무선사업부)
Kim, Jeong-Goo (부산대학교 정보컴퓨터공학부)
Joo, Eon-Kyeong (경부대학교 전자전기컴퓨터학부)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.32, no.4C, 2007 , pp. 370-378 More about this Journal
Abstract
The most appropriate low density parity check (LDPC) code for hybrid automatic repeat request (HARQ) system suitable for future multimedia communication systems is presented in this paper. HARQ system with punctured LDPC code is investigated at first. And two transmission schemes with parallel concatenated LDPC code are also presented and their performances are analyzed according to the various values of mean column weight (MCW). As a result, the parallel concatenated LDPC code with the diversity effect of information bit is considered to be more appropriate for HARQ system considering the throughput as well as error performance.
Keywords
HARQ system; punctured LDPC code; parallel concatenated LDPC code; mean column weight;
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