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Cell Radius & Guard Band Requirements by Mutual Interference Investigation between Satellite Digital Systems using Gap-filler  

Cha Insuk (인하대학교 정보통신대학원 이동통신연구실)
Park SungHo (인하대학교 정보통신대학원 이동통신연구실)
Chang KyungHi (인하대학교 정보통신대학원 이동통신연구실)
You Heung-Ryeol (KT 컨버전스 연구소)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.30, no.6A, 2005 , pp. 499-509 More about this Journal
Abstract
The capacity of Satellite DMB(Digital Multimedia Broadcasting) system is limited mainly by the interference. So, to achieve the expected performance of Satellite DMB system and to minimize the interference from other Satellite DMB system, ACI(Adjacent Channel Interference) should be considered carefully. Satellite DMB system uses the Gap-filler for effective transmission in terrestrial environment, and the Gap-filler can use direct amplification or frequency conversion to satisfy the specific requirements. Therefore, amplified signal causes several effects on interference between System A(Eureka 147 DAB) and System E(ISDB : Integrated services Digital Broadcasting). In this paper, by using the outcome of system-level simulation considering the results of link-level simulation, we analyze the interferences between System A and System E under practical situation based on the exact parameters of ITU-R BO. 1130-4. We also propose the appropriate level of guard band and Cell Radius to optimize system capacity by adapting the spectrum mask given in the spec. and utilizing the interference analysis between System A and System E.
Keywords
Satellite DMB; Interference; Gap-filler; Cell Radius; Guard Band;
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