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DVB-S2 LDPC 복호 알고리즘의 새로운 신드롬 체크 기반의 Early Stopping 방식
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- 발행일
- 201112
- 출처
- 통신위성우주산업연구회논문지, v.6 no.2, pp.78-83
- ISSN
- 2384-3853
- 출판사
- 통신위성,우주산업연구회
- 협약과제
- 11PR2900, 고효율 위성 리턴링크 접속 핵심기술 개발, 오덕길
- 초록
- In this paper, we propose a computationally efficient early stopping method to reduce the average number of iterations. The conventional early stopping methods have too much computational complexity to compute the stopping criterion. Thus, only the hard decision based early stopping method is suitable to realize the hardware of LDPC decoder. However, this method also can increase the computational complexity of LDPC decoder. The proposed method can effectively reduce the computational complexity of stopping criterion as we do not compute hard decision, and we combine the stopping criterion with horizontal shuffling scheduling decoding scheme. The simulation results show that a new early stopping method achieves acceptable bit error rate performance also reduces the average number of iterations.
- KSP 제안 키워드
- Bit Error Rate(And BER), Bit Error Rate performance, Computational complexity, Computationally Efficient, DVB-S2, Early stopping method, LDPC decoder, Stopping criterion, hard decision, number of iterations, simulation results