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학술대회
Cooperative System Using Ancillary Terrestrial Component with Space Time Block Code for Mobile Satellite Broadcasting Service
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- 발행일
- 200704
- 출처
- AIAA International Communications Satellite Systems Conference (ICSSC) 2007, pp.1-7
- 협약과제
- 07MR3100, 위성 IMT2000+ 기술 개발, 안도섭
- 초록
- In the groundbreaking application to the Federal Commission (FFC) in 2001, mobile satellite venture (MSV) unveiled a bold new architecture for a mobile satellite service with an ancillary terrestrial component (ATC) providing unparalleled coverage and spectral efficiency. Compared to the distributed space time code (STC) as the encoding operation is distributed among the cooperation nodes in terrestrial communication, we can regard ATCs similarly as relays in MSS using ATC. In this paper, in order to achieve spatial diversity gain, we propose system architectures to apply STC in MSS system. In the proposed spacetime coded system, antennas are no longer collocated at the transmitter or receiver. The scheme has no additional deployment requirement from the conventional MSS system and just needs signal processing for STC in ATC. Performance of the distributed space-time coded system in MSS will be compared to that in case of the conventional architecture of ATC and an application of two antennas on an ATC. © 2007 by the American Institute of Aeronautics and Astronautics, Inc. All rights reserved.
- KSP 제안 키워드
- Ancillary terrestrial component(ATC), Block codes, Cooperative system, Mobile satellite, Satellite Broadcasting, Signal Processing, Space time(ST), Space-time codes, Spatial diversity(SD), Spatial diversity gain, Spectral efficiency(SE)