Browse > Article

Interference Analysis of Radio-Relay Stations Affected by HAPS System for Frequency Sharing  

박종민 (한국전자통신연구원 광대역무선통신연구부)
구본준 (한국전자통신연구원 광대역무선통신연구부)
안도섭 (한국전자통신연구원 광대역무선통신연구부)
김봉석 (군산대학교 전자정보공학부)
강영흥 (군산대학교 전자정보공학부)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.27, no.7B, 2002 , pp. 719-726 More about this Journal
Abstract
In WRC-2000, Resolution 734 was adopted to study the use of high altitude platform station(HAPS) operating in the bands above 30GHz. Therefore, frequency sharing feasibility between a new HAPS systems and an existing terrestrial fixed-service(FS) system should be analyzed primarily. In this paper, interference effects from the HAPS system into the radio-relay station are analyzed in terms of two cases; one is the interference distribution from the power-flux density(PFD) of HAPS airships, and the other the interference power from the ground stations. In conclusion, the new PFD criteria different from the exiting satellite system should be required, and the coordinated distance between the HAPS nadir and the radio-relay station should be 60km ∼ 253km for P$\sub$HG/ = -50dBW/MHz of transmitting power spectral density to share the new HAPS system into the existing FS system.
Keywords
Citations & Related Records
연도 인용수 순위
  • Reference
1 A.S. May and M.J. Pagones, 'Model for computation to radio-relay systems from Geostationary satellites', The Bell systemTech. Joumal, pp.81-101, Jan. 1971
2 Q. ITU-R 212-1/9, Technical and Operational Characteristics for the Fixed Service using High Altitude Platform Stations(HAPS) in the frequency Range 3-18GHz, 1997
3 Doc. 4/28-9/35, Feasibility of the Fixed-Satellite Service Sharing with the Fixed Service Operat-ing on the Same Frequency in the Range 30-52GHz, 2000
4 Rec. ITU-R F.1107, Probabilistic Analysis of Calculating Interference into the Fixed Servicefrom Satellites Occupying the Geostationary Orbit, 1994
5 R.L. Freeman, Radio Systems Design for Telecommunications, John Wiley & Sons,1997
6 Doc. ITU-R 4-9S/11-E, Coordination Distance for High Altitude Platform Stations, Feb. 1998
7 Doc. ITU-R. 9B/J-8, Preliminary Study or Feasibility of High Altitude Platform Station(HAPS) in the Fixed and Mobile Services in the frequency Bands Above 3GHz Allocated Exclusively for Terrestrial Radio-communication, March 2001
8 Doc. ITU-R 9B/18-E, Methodology for Impact Evaluation and Operational Procedure of the Fixed Service Using High Altitude Platform Stations(HAPS) for Frequency Sharing with Other Co-primary Service Across the International Border in the Band 27.5-28.35GHz and 31.0-31.3GHz, Sept. 2000
9 Rec. ITU-R F.699-2, Reference Radiation Patterns for Line-of-sight Radio-relay System Antenna for Use in Coordination Studies and Interference Assessment in the Frequency Range from 1 to about 40GHz, 1994