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Resource Allocation Method for a Interference Mitigation in a Cellular System with Fixed Relays  

Won, Seung-Chan (삼성전자 정보통신)
Im, In-Chul (삼성전자 정보통신)
Yoon, Dong-Woen (한양대학교 전자통신컴퓨터공학부)
Park, Sang-Kyu (한양대학교 전자통신컴퓨터공학부)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.33, no.8A, 2008 , pp. 829-837 More about this Journal
Abstract
A cellular system with fixed relays is considered to be a technology that can support high data transmission service to wide areas. However, either inter-cell interference or inter-sector interference that can be produced by adding relays to the cellular system with fixed relays does not guarantee high link performance to deteriorate function, so that resource allocation for avoidance of interference is very much important. In the paper, the cellular system performance with repeater relay has been compared with the cellular system performance with relay, and cell coverage expansion at the use of relay repeater has been compared. To compare, this paper has suggested resource allocation method to avoid inter-cell interference and inter-sector interference at installation of fixed relay on the cellular system. The proposed method can allocate different frequency resources on adjacent base stations and relays to reduce interference and to expand high data transmission area, and all of frequency bands are used at each sector to elevate efficiency of the frequency when base stations and relays operate simultaneously.
Keywords
Cell Planing; Fixed Relay; Cellular System; Resource Allocation; OFDMA;
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