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Estimation of the sharing criteria between HAPS System and Cellular IMT-2000 system  

Kim, Bong-Seok (군산대학교 전자정보공학부)
Park, Jong-Min (한국전자통신연구원 광대역무선통신연구부)
Ku, Bon-Jun (한국전자통신연구원 광대역무선통신연구부)
Ahn, Do-Sub (한국전자통신연구원 광대역무선통신연구부)
Kang, Young-Heung (군산대학교 전자정보공학부)
Abstract
Resolution 221 requests the ITU-R to conduct studies, as a matter of urgency, on the feasibility of utilizing HAPS system as a base station to provide IMT-2000 services. And HAPS base stations should not cause harmful interference to the cellular IMT-2000 services. To study on the interference between HAPS system and cellular system is divided into two cases. One is the interference into HAPS system from the cellular system and the other is the interference into the cellular system from HAPS system. Since the former case has been already studied[1]. this paper describes the interference the interference to the noise power ration(I/N) with various parameters, such as the transmitting power, the number of users per cell, maximum antenna gain and the multibeam cell radius of HAPS. With the proposed estimation, we can determine the optimum values of various parameters in HAPS IMT-2000 system.
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