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학술지 Raptor-Like Rate Compatible LDPC Codes and Their Puncturing Performance for the Cloud Transmission System
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저자
박성익, Yiyan Wu, 김흥묵, 허남호, 김정창
발행일
201406
출처
IEEE Transactions on Broadcasting, v.60 no.2, pp.239-245
ISSN
0018-9316
출판사
IEEE
DOI
https://dx.doi.org/10.1109/TBC.2014.2304134
협약과제
14MR9100, (통합)융합형 실감방송 서비스 및 전송 기술 개발, 허남호
초록
This paper proposes a class of raptor-like rate compatible low-density parity check (LDPC) codes for the cloud transmission (CTxN) system. The proposed LDPC codes have lengths of 16,200 and 64,800 which are the same as those of DVB T2/S2 LDPC codes so that the CTxn system can easily be combined with the DVB-T2/S2 system for a second layer service. As the proposed LDPC codes are optimized at low coding rate range (R<1/2) , their performance is not only close to the Shannon limit, but also better than the DVB-T2/S2 LDPC codes. Moreover, the proposed LDPC codes have raptor code's property so that they can be decoded with a punctured codeword at the receiver for power saving and less latency under high signal-to-noise ratio regions. © 1963-12012 IEEE.
키워드
Cloud transmission, low-density parity check (LDPC) code, low-rate, puncturing, rate compatible
KSP 제안 키워드
Cloud Transmission, Coding rate, DVB-T2, High signal-to-noise ratio, Low density parity check (LDPC) code, Low-rate, Raptor code, Shannon limit, Signal noise ratio(SNR), Transmission system, digital video broadcasting-terrestrial(DVB-T)