상세정보
학술지
Enhanced-xVSB system development for mobile/portable reception
- 발행일
- 200505
- 출처
- IEEE Transactions on Consumer Electronics, v.51 no.2, pp.419-423
- ISSN
- 0098-3063
- 출판사
- IEEE
- 협약과제
- 05MR1100, 지능형 통합정보방송(SmarTV)기술개발, 안치득
- 초록
- This paper describes advanced dual stream system for improving mobile/pedestrian reception performance to the ATSC DTV 8-VSB transmission standard. Proposed system can transmit a mixture of normal (8-VSB) stream and enhanced (robust) stream. The robust stream has a lower threshold of visibility (TOV) compared to the standard stream, and legacy receivers ignore the robust packets. Thus, Enhanced-xVSB system is fully backward compatible with a current ATSC standard. For more robust transmission support, E-xVSB system adopts a reduced constellation method as well as enhanced trellis-coded modulation scheme. E-xVSB system supports a variety of enhanced modulation schemes: Pseudo-2VSB, Enhanced-4VSB, modified Enhanced-8VSB and Hybrid-VSB. Proposed system has been tested in the Lab, and the testing results are shown in this paper. © 2005 IEEE.
- KSP 제안 키워드
- Backward Compatible, Modulation scheme, Robust transmission, Trellis-coded modulation(TCM), system development