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A Study of Coverage Extension and Minimum Deployment Cost in NBTC and WBTC Structures based WiBro System Using Multi-hop Relay  

Kim, Se-Jin (고려대학교 컴퓨터정보학과 BCN 연구실)
Kim, Seung-Yeon (고려대학교 전자및정보공학과 B-ISDN 연구실)
Lee, Byung-Bog (한국전자통신연구원(ETRI) RFID/USN 연구단)
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.10B, 2008 , pp. 911-918 More about this Journal
Abstract
In this paper, we propose new cell structures using multi-hop Relay Station(RS) based on IEEE802.16j in Narrow-Beam Trisector Cell (NBTC) and Wide-Beam Trisector Cell (WBTC), which are two methods for cell sectorization using 3-sector directional antennas. Then, we analyze our proposed structures compared with the existing system which does not use any RS about the numbers of optimized Base Station (BS) and multi-hop relay, the extended BS coverage, and the deployment cost according to the traffic density using optimization model. According to the results, we know the reduction of total deployment cost of the proposed systems and that WBTC is suitable when the traffic density is high and NBTC is suitable when the traffic density is low in our proposed multi-hop based NBTC and WBTC structures.
Keywords
Multi-hop relays; Maximum coverage; Frame-efficiency; Frequency assignment;
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  • Reference
1 IEEE Standard 802.16e-2005, 'IEEE Standard for Local and Metropolitan Area Networks Part 16: Air Interface for Fixed and Mobile Broadband Wireless Access Systems,' Feb. 2006
2 IEEE 802.16j-06/026r4, 'Baseline Document for Draft standard for Local and Metropolitan Area Networks Part 16: Air Interface for Fixed and Mobile Broadband Wireless Access Systems,' June. 2007
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7 IST ROMANTIK Project(http://www.ist-romantik.org)
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9 IST WINNER II, D3.5.1 v1.0