한국위성정보통신학회논문지 (Journal of Satellite, Information and Communications)

한국위성정보통신학회 (Korea Society of Satellite Technology)
권호 표지

PB/MC-CDMA 기반 two-hop 중계 망에서의 자원 할당 방식

Resource Allocation in Two Hop Relay Network based on PB/MC-CDMA System

  • 얀순 (경희대학교 전자전파공학과) ;
  • 이계산 (경희대학교 전자전파공학과)
  • 투고 : 2010.05.25
  • 심사 : 2010.06.25
  • 발행 : 2010.06.30
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초록

In this paper, we discuss a proposed two hop relay network with PB/MC-CDMA(partial block MC-CDMA) technique. The main advantages of PB/MC-CDMA system are the increased cell capacity and the high quality of performances. In the system, we employ relay scheme to focus on the coverage reduction and hotspot problem, hotspot is a location where a cluster of users are blocked or dropped for the reason of insufficient frequency resources. Frequency resource allocation scheme is put forward in a three cells system according to each problem. The simulation result shows the performance of the two hop transmission is better than the direct transmission and the proposed network can support much more users to relief hotspot effect compared to the conventional one.

키워드

참고문헌

  1. Takeo Ohseki and Naoki Fuke, "Multihop Mobile Communications System using MC-CDMA in Forward links," IEEE WCNC, vol. 1,13-17, pp. 189 - 194, March 2005.
  2. J. Jobin and Michalis Faloutsos, "Understanding the Effects of Hotspots in Wireless Cellular Networks," IEEE INFOCOM 2001, vol. 1, 7-11, March 2004.
  3. Long Le and E. Hossain, "Multihop Cellular Networks: Potential Gains, Research Challenges, and a Resource Allocation Framework", IEEE Communications Magazine, vol. 45 , no. 9, pp. 66-73, 2007.
  4. K. Lee and K. Lee, "Clustered OFDMA in the multi-path fading channel," LCNS [LCNS 3894], May 2006.
  5. Kyesan Lee and Kyujin Lee, "Adaptive Resourse Allocation for the PB/MC-CDMA System in Frequency Selective Fading Channels," IEICE Trans. commun., vol. E91-B, no. 12, pp. 4042-4045, Dec. 2008. https://doi.org/10.1093/ietcom/e91-b.12.4042
  6. F. Adachi, D. Garg, S. Takaoka, and K. Takeda, , "Broadband CDMA Techniques," IEEE Wireless Communications, vol. 12 , no. 2, pp. 8-18, 2005. https://doi.org/10.1109/MWC.2005.1421924
  7. Dongmei Zhao and Terence D. Todd, "Cellular CDMA Capacity with Out-of-Band Multihop Relaying," IEEE Trans. on Mobile Computing, vol. 5, no. 2, pp. 170-178, 2006.
  8. Shinsuke Hara and Ramujee Prasad, "Overview of Multicarrier CDMA." IEEE Communications Magazine, vol. 35 , no. 12, pp. 126-133, 1997 https://doi.org/10.1109/35.642841
  9. Lei Guan, Jianhua Zhuang and Jianing Li, "Spectral Efficient Frequency Allocation Scheme in Multihop Cellular Network," IEEE VTC-2007 Fall, pp. 1446-1450, October. 2007.