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Optimization of Coverage Extension in OFDMA Based MMR System  

Kim, Seung-Yeon (고려대학교 전자및정보공학과 B-ISDN 연구실)
Kim, Se-Jin (고려대학교 컴퓨터정보학과 BCN 연구실)
Ryu, Seung-Wan (중앙대학교 정보시스템학과)
Lee, Hyong-Woo (고려대학교 전자및정보공학과 B-ISDN 연구실)
Cho, Choong-Ho (고려대학교 컴퓨터정보학과 BCN 연구실)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.33, no.7B, 2008 , pp. 567-574 More about this Journal
Abstract
In this paper, we propose an optimal coverage extension scheme in the OFDMA based mobile multi-hop relay system. First, we propose an optimal frequency and time assignment scheme for maximizing system throughput and analyze the frame efficiency of schemes. Then, under the given BS capacity, we find the maximum number of relay hops that can be used to estimate the maximum coverage area of a BS in a multi-hop relay system. Analytical results show that the proposed scheme is efficient in coverage extension and throughput maximization in OFDMA based multi-hop relay system. Our work may be a rough guideline to control the parameters for multi-hop relay system optimization.
Keywords
Multi-hop relays; Maximum coverage; Frame-efficiency; Frequency assignment;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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