The Journal of Korean Institute of Electromagnetic Engineering and Science (한국전자파학회논문지)

The Korean Institute of Electromagnetic Engineering and Science (한국전자파학회)
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Analysis on Frequency Sharing between LEO Satellite Network and FS System in Space-to-Earth Direction

저궤도 위성망과 FS 시스템의 주파수 공유 방안 연구

  • Gam, Hye-Mi (Satellite & Wireless Convergence Research Department, ETRI) ;
  • Oh, Dae-Sub (Satellite & Wireless Convergence Research Department, ETRI) ;
  • Ahn, Do-Seob (Satellite & Wireless Convergence Research Department, ETRI)
  • 감혜미 (한국전자통신연구원 위성무선융합연구부) ;
  • 오대섭 (한국전자통신연구원 위성무선융합연구부) ;
  • 안도섭 (한국전자통신연구원 위성무선융합연구부)
  • Published : 2009.12.31
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Abstract

This paper addresses the analysis of the interference produced between the LEO(Low Earth Orbit) satellite constellation and FS(Fixed Service) system operating in the same frequency and area. At first, we calculates the interference of FS system from the LEO satellite constellation depending on the number of LEO satellite antenna beams. Simulation results show that the amount of interference that was calculated from each region. This result can be used to define the carrier level for protecting FS system from total interference by LEO satellite constellation. In the second scenario, we calculates the interference of LEO satellite system earth station by the FS link depending on radius of protection area. The presented results can be used to design FS systems minimizing interference to earth station.

본 논문에서는 저궤도 위성망(LEO satellite network)과 FS 시스템(Fixed Service system) 동일한 하향 링크 주파수를 사용하는 통신 환경에서 두 시스템이 간섭 영향 없이 운용될 수 있는 방안을 연구하였다. 저궤도 위성망에 의한 FS 시스템으로의 간섭 시나리오의 경우 동시에 운용되는 저궤도 위성 빔의 수에 따라 FS 시스템의 영역을 정의하여 각 영역에서의 간섭 영향을 분석하였다. 또한 FS 시스템에 의한 지구국으로의 간섭 시나리오에서는 지구국의 보호 영역을 정의하여 보호 영역의 반경에 따른 간섭 영향을 분석하였다. 분석한 결과는 두 스템이 간섭 영향 없이 운용될 수 있는 공유 조건으로 FS 시스템의 설계 단계에 활용될 수 있다.

Keywords

References

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