상세정보
학술지
Next Generation S-DMB Using Hierarchical Modulation
- 저자
- 오천인
- 발행일
- 200810
- 출처
- IEICE Transactions on Communications, v.E91-B no.10, pp.3409-3410
- ISSN
- 0916-8516
- 출판사
- 일본, 전자정보통신학회 (IEICE)
- 협약과제
- 08MC3300, RFID/USN용 센서 태그 및 센서 노드 기술 개발, 표철식
- 초록
- In this paper, we propose a method to ensure larger number of channels than the current Satellite Digital Multimedia Broadcasting (S-DMB). For Backwards Compatibility (BC) for legacy subscribers, we apply Hierarchical Eight Phase Shift Keying (H-8PSK) modulation and Low Density Parity Check (LDPC) code. Using the newly proposed method, we simulate the performance deterioration of the existing stream and the performance of the new stream according to code rates of LDPC and deviation angle. As the result, we present the optimal deviation angle, which produces the least performance deterioration of the existing system and the best performance of the new system, drawing satisfiable improvement in transmission rate. Copyright © 2008 The Institute of Electronics.
- KSP 제안 키워드
- Backwards Compatibility, Best performance, Digital multimedia broadcasting, Hierarchical modulation, Low density parity check (LDPC) code, Transmission Rate, deviation angle, performance deterioration, phase shift keying