Abstract
차세대 이동 위성 시스템의 주요 서비스중 하나는 멀티미디어 방송 및 멀티캐스팅 서비스가 될 것이다. 이러한 서비스를 효과적으로 제공하기 위해 통합 위성 지장 네트워크가 고려될 수 있다. 본 논문에서는 차세대 이동위성 시스템에 적합한 통합 위성 지상 시스템의 구조를 소개하고, 효율적인 이동 위성 멀티미디어 방송 및 멀티캐스팅 서비스를 제공하기 위한 위성과 지상 보조 장치 간의 협력적 전송 기법들을 제안하였다. 성능 분석 시뮬레이션 결과, 제안한 구조가 시스템 성능을 보다 향상시킬 수 있으며 효과적인 전송을 할 수 있음을 보여준다. One of major services for the next generation mobile satellite system will be multimedia broadcasting and multi-casting service(MBMS). An integrated satellite and terrestrial network can be considered to provide those services seamlessly and cooperatively. This paper presents efficient cooperative transmission architectures for integrated satellite and terrestrial network. First, an integrated satellite and terrestrial system architectures is introduced, and several cooperative transmission architectures for the integrated system are derived. Extensive performance simulation results reveal that the proposed architectures can improve the system performance and make an efficient transmission.
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