KSII Transactions on Internet and Information Systems (TIIS)

  • 제6권3호
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  • Pages.784-793
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  • 2012
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  • 1976-7277(pISSN)
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  • 1976-7277(eISSN)
한국인터넷정보학회 (Korean Society for Internet Information)
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On OFDM Subcarrier Allocation Strategies for Soft Hand-off in Cellular Systems

  • Kim, Chan-Hong (Department of Electrical and Computer Engineering) ;
  • Lee, Jung-Woo (Department of Electrical and Computer Engineering)
  • 투고 : 2011.11.28
  • 심사 : 2012.03.13
  • 발행 : 2012.03.30
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초록

This paper deals with subcarrier allocation strategies for soft hand-over in OFDMA-based cellular systems. Two possible subcarrier allocation methods are considered for soft hand-over. One method is to use an identical subcarrier set between the two cells participating in the hand-over. The other is to use different subcarrier sets between the two cells. As expected, the different subcarrier strategy is better in terms of diversity order and BER than the identical subcarrier strategy. It will be shown that the BER performance difference between the two strategies is more noticeable with contiguous subcarrier allocation. But the different subcarrier strategy consumes twice more frequency resources than the other, and there is a trade-off between the two strategies in terms of BER and frequency resources. By considering the trade-off, we also propose a subcarrier allocation strategy for soft hand-over.

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참고문헌

  1. G. Lupo, R. Cautellier, M. G. Di Benedetto and F. Malena, "Dynamic resource allocation with a soft handover procedure for application in a broadband system," in Proc. of 50th IEEE Vehicular Technology Conference, vol.4, pp.2111-2115, Sept.1999.
  2. Jaeho Jo and Jinsung Cho, "Cross-layer optimized vertical handover schemes between mibile WiMAX and 3G networks," KSII Transactions on Internet and Information Systems, vol.2, no.4, pp.171-183, August 2008. https://doi.org/10.3837/tiis.2008.04.001
  3. Byungjoo Park, Eunsang Hwang and Gil-Cheol Park, "Seamless mobility management in IP-based wireless/mobile networks with fast handover," KSII Transactions on Internet and Information Systems, vol.3, no.3, pp.266-284, Jun.2009. https://doi.org/10.3837/tiis.2009.03.004
  4. Hung Quoc Vo, Daesun Kim, Choong Seon Hong, Sungwon Lee and Eui-Nam Huh, "A novel scheme for seamless hand-off in WMNs," KSII Transactions on Internet and Information Systems, vol.3, no.4, pp.399-422, Aug.2009. https://doi.org/10.3837/tiis.2009.04.005
  5. Antti Tolli, Marian Codreanu and Markku Juntti, "Cooperative MIMO-OFDM cellular system with soft handover between distributed base station antennas," IEEE Transactions on Wireless Communications, vol.7, no.4, pp.1428-1440, Apr.2008. https://doi.org/10.1109/TWC.2008.061124
  6. C. Tepedelenlioglu, "Maximum multipath diversity with linear equalization in precoded OFDM systems," IEEE Transactions on Information Theory, vol.50, no.1, pp.232-235, 2004. https://doi.org/10.1109/TIT.2003.821987
  7. A. Damman, P. Lusina and M. Bossert, "On the equivalence of space-time block coding with multipath propagation and/or cyclic delay diversity in OFDM," in Proc. of IEEE European Wireless, 2002.
  8. J. G. Proakis, Digital communications, 4th Edition, McGraw-Hill, 2001.
  9. L. Zheng and D. N. C. Tse, "Diversity and multiplexing: a fundamental tradeoff in multiple-antenna channels," IEEE Transactions on Information Theory, vol.49, pp.1073-1096, May.2003. https://doi.org/10.1109/TIT.2003.810646
  10. L. Grokop and D. N. C. Tse, "Diversity/multiplexing tradeoff in ISI channels," in Proc. of IEEE International Symposium on Information Theory, pp.96, Jun.2004.
  11. IEEE P802.16e/D4, "Draft IEEE standard for local and metropolitan area networks - Part 16: air interface for fixed and mobile broadband wireless access systems," Aug. 2004.