상세정보
학술대회
Low computational complexity algorithms of LDPC decoder for DVB-s2 systems
- 발행일
- 200509
- 출처
- Vehicular Technology Conference (VTC) 2005 (Fall), pp.536-539
- 협약과제
- 05MR2700, 광대역 적응형 위성통신방송 융합기술 개발, 오덕길
- 초록
- This paper proposed the two kinds of simplified complexity reduced algorithm for LDPC decoder. First, sequential decoding with partial group is proposed. It has same H/W complexity, and fewer number of iteration's are required without performance degradation. Secondly, early detection method for reducing the computational complexity is proposed. Using a confidence criterion, some bit nodes and check node edges are detected early on during decoding. In this way, early detected edges are not computed following iterations, the computational complexity of further processing is reduced.
- KSP 제안 키워드
- Check Node, Confidence criterion, DVB-S2, Detection Method, Early Detection, LDPC decoder, Low Computational Complexity, Sequential decoding, performance degradation