최근 들어 케이블 방송망을 기반으로 한 디지털 방송, VoIP(Voice over Internet Protocol), VOD(Video on Demand), 영상전화, 이동전화, 무선 랜 로밍 등의 다양한 멀티미디어 서비스의 출현과 향후 도입될 새로운 융합형 멀티미디어 서비스의 수용을 위해 케이블 망의 고도화에 대한 요구가 제기되었다. 특히 유럽을 중심으로 이러한 요구를 만족시키기 위해 DVB(Digital Video Broadcasting)-C2 규격의 개발이 진행되었다. DVB-C2 규격에서는 기존의 게이블 전송 규격인 DVB-C에 대해 30% 이상의 전송 효율을 높이고자 새로운 변조 방식과 채널 오류정정 부호 방식을 도입하였다. 이에 본 논문은 본 논문에서는 DVB-C2 규격에서 도입된 채널 오류정정 부호인 BCH(Bose, Chaudhuri, and Hocquenghem) 부호와 LDPC(Low Density Parity Check) 부호의 연접 방식에 대한 성능을 검증하고자 한다. 이를 위해 개발된 시뮬레이터의 소개와 이를 통한 시험결과를 제시한다.
KSP Keywords
DVB-C2, Digital video broadcasting, Internet Protocol(IP), Low Density Parity Check(LDPC), Video on Demand(VoD), Voice over Internet Protocol
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