상세정보
학술대회
New Constellation-Rotation Diversity Scheme for DVB-NGH
- 발행일
- 201009
- 출처
- Vehicular Technology Conference (VTC) 2010 (Fall), pp.1-4
- 협약과제
- 10MR2200, 방통융합형 차세대 모바일방송 핵심기술개발, 이광순
- 초록
- This paper proposes a new 4-dimensional(4D) constellation-rotation(CR) method which obtains diversity gain of 4 under Rayleigh fading channels. The proposed scheme uses two consecutive CR operations for the constellation of QAM signals unlike a conventional 2-dimensional(2D) CR method using only one CR operation. The computer simulation results show that the new method outperforms the conventional one even more as both the channel code rate and the erasure ratio increase. In a point of system flexibility, the proposed scheme has a great advantage since the conventional 2D CR scheme can be simply implemented by only changing rotation angle values used in the proposed scheme. ©2010 IEEE.
- KSP 제안 키워드
- 4-dimensional, Channel code, Computer simulation(MC and MD), DVB-NGH, Diversity gain, Diversity scheme, QAM signals, Rayleigh Fading Channel, System flexibility, code rate, new method