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http://dx.doi.org/10.7840/kics.2012.37B.12.1138

Interference Aware Cost Effective Coverage Extension in Multihop Relay Networks  

Kim, Yongchul (육군사관학교 전자정보학과)
Lim, Won-Taek (육군사관학교 전자정보학과)
Cho, Sung-Hwan (육군사관학교 전자정보학과)
Abstract
IEEE standard 802.16, often referred to as WiMAX, is considered a "last mile" broadband wireless access alternative to conventional DSL and Cable Internet. One extension that is recently receiving great attention is the IEEE 802.16j Mobile Multihop Relay (MMR) amendment. The focus of this amendment is the development of simple and lower cost relay stations (RSs) that can enhance network coverage and capacity. We use our proposed simple scheduling scheme for serving the SSs in a fair manner and evaluate the performance of WiMAX networks with relays, especially we analyze the impact of interference between RSs on cell throughput Through simulations and numerical analysis, we make several fundamental observations about interference aware cost effective coverage extension in such networks.
Keywords
Multihop Relay Networks; WiMAX; 802.16j; Coverage extension; Resource allocation;
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  • Reference
1 IEEE Std 802.16j, Amendment to IEEE Standard for Local and Metropolitan Area Networks, Jun. 2009.
2 C. Hoymann, M. Dittrich, and S. Goebbels, "Dimensioning cellular multihop WiMAX networks," in Proc. IEEE Mobile WiMAX Symposium, pp. 150-157, Mar. 2007.
3 S. Deb, V. Mhatre, and V. Ramaiyan, "WiMAX relay networks: opportunistic scheduling to exploit multiuser diversity and frequency selectivity," in Proc. ACM MOBICOM, pp. 163-174, Sep. 2008.
4 P. Li, M. Rong, Y. Xue, and E. Schulz, "Reuse one frequency planning for two-hop cellular system with fixed relay nodes," in Proc. IEEE WCNC, pp. 2253-2258, Mar. 2007.
5 W. H.. Park and S. Bahk, "Resource management policies for fixed relays in cellular networks," Computer Communications, vol. 32, no. 4, pp. 703- 711, Mar. 2009.   DOI   ScienceOn
6 Y. Kim and M. L. Sichitiu, "Cost effective coverage extension in 802.16j mobile multihop relay networks," in Proc. IEEE WCNC, Apr. 2010.
7 V. Erceg and K. V. S. Hari, "Channel models for fixed wireless applications," in IEEE 802.16 Broadband Wireless Access Working Group. Technical Report, Jul. 2001.
8 G. J. Foschini and J. Salz, "Digital communications over fading radio channels," Bell System Tech. J., vol. 62, no. 2, pp. 429-456, Feb. 1983.   DOI
9 Q. Zhang and S. Kassam, "Finite-state markov model for Rayleigh fading channels," IEEE Trans. Commun., vol. 47, no. 11, pp. 1688-1692, Nov. 1999.   DOI   ScienceOn