상세정보
학술지
Rain Attenuation and Doppler Shift Compensation for Satellite Communications
Cited - time in 
Download 3 time
Share 
Download 3 time
Share
- 발행일
- 200202
- 출처
- ETRI Journal, v.24 no.1, pp.31-42
- ISSN
- 1225-6463
- 출판사
- 한국전자통신연구원 (ETRI)
- 협약과제
- 01MR4300, 초고속 위성통신에서의 효율적인 전송 기술 연구, 김수영
- 초록
- In high-speed multimedia satellite communication sys- tems, it is essential to provide high-quality, economical ser- vices by using efficient transmission schemes which can overcome channel impairments appearing in the satellite link. This paper introduces techniques to compensate for rain attenuation and the Doppler shift in the satellite com- munication link. An adaptive transmission technique with a control algorithm to adaptively allocate transmission schemes is used as a countermeasure to rain attenuation. We introduce a new rain attenuation modeling technique for estimating system performance and propose a novel Doppler shift compensation algorithm with reduced hard- ware complexity. Extensive simulation results show that the proposed algorithm can provide greatly enhanced per- formance compared to conventional algorithms. Simula- tion software and hardware which incorporate the pro- posed techniques are also demonstrated.
- KSP 제안 키워드
- Adaptive Transmission, Compensation algorithm, Doppler shift compensation, High Speed, High-quality, Modeling techniques, Software and hardware, System performance, channel impairments, control algorithm, conventional algorithms