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학술대회
Multi-rate parity accumulator accumulator codes
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- 저자
- 박성익, Kyeongcheol Yang, 김승원
- 발행일
- 200304
- 출처
- Vehicular Technology Conference (VTC) 2003 (Spring), pp.2319-2323
- 협약과제
- 02MR3200, 지능형 통합정보방송(SmarTV)기술개발, 김재명
- 초록
- In this paper we introduce multi-rate PAA (Parity Accumulator Accumulator) codes obtained from replacing single parity check codes with multi-rate cycle-free codes in the conventional PAA codes. They can be easily decoded by applying the sum-product algorithm to their factor graph. Using the Gaussian approximation, we investigate the noise thresholds of multi-rate PAA codes on the additive white Gaussian noise (AWGN) channel. Through simulation results, it is shown that the performance of PAA codes with multiple code rates is close to the Shannon limit over the AWGN channel.
- KSP 제안 키워드
- Additive white Gaussian noise (AWGN) channel, Cycle-free, Factor Graph, Gaussian approximation, Multi-rate, Parity check codes, Shannon limit, Sum-product Algorithm, noise thresholds, simulation results