The Journal of Korean Institute of Communications and Information Sciences (한국통신학회논문지)

The Korean Institute of Commucations and Information Sciences (한국통신학회)
권호 표지
DOI QR코드

DOI QR Code

Decentralized Frequency Allocation Scheme in Vehicle-mounted Mobile Relay System

차량 탑재형 이동 중계기의 분산 주파수 분할 기법

  • 신윤재 (중앙대학교 전자전기공학과 통신정보시스템 연구실) ;
  • 이정륜 (중앙대학교 전자전기공학부 통신정보시스템 연구실)
  • Received : 2012.02.21
  • Accepted : 2012.06.13
  • Published : 2012.07.31
Download PDF
⟨ Previous Next ⟩

Abstract

In this paper, we proposed that decentralized frequency allocation scheme(DFAS) without network entry procedure between relays in mobile relay system. Frequency Indicator(FI) signal which is the reference signal of frequency division of each relay and Energy Detection(ED) region are defined. In addition, the mobile connected to the relay transmits the FI signal to neighbor relays in order to facilitate communication between relays. Finally, by using this scheme, the cell throughput improvement is confirmed.

본 논문에서는 이동형 중계기 시스템에서 네트워크 진입절차를 거치지 않는 분산적 주파수 분할기법을 제시하였다. 이를 위해 각기 중계기들의 주파수 분할의 기준 신호, Frequency Indicator(FI) 신호와 이를 전송하기 위한 Energy Detection(ED) 구간을 정의 하였다. 또한 중계기간 통신을 원활하게 하기 위하여 중계기 자신에게 연결된 단말을 이용하여 인접한 곳에 위치한 중계기들에게 ED구간에 FI신호를 전송하는 기법을 정의하였다. 그리고 이를 바탕으로 여러 토폴로지 환경에서의 시뮬레이션을 진행하여 셀 수율에서 향상이 있음을 확인하였다.

Keywords

References

  1. Keun-hang Heo, Hyun-sik Kang, Jung-Ryun Lee , "Performance Evaluation of Vehicle-mounted Mobile Relay in Next Generation Cellular Networks", KSII Transactions on Internet and Information Systems, vol. 5, no.5, pp. 874-887, May. 2011
  2. "IEEE 802.16j mobile multi-hop relay project authorization request(PAR)", Official IEEE 802.16j, http://standards.ieee.org./board/nes/projects/802.16j.pdf, Mar. 2006
  3. Peters S.W, Heath R.W , "The future of WiMAX: Multihop relaying with IEEE 802.16j," Communications Magazine, IEEE , vol.47, no.1, pp.104-111, January 2009
  4. Soldani D, Dixit, "Wireless relays for broadband access [radio communications series]," Communications Magazine, IEEE , vol.46, no.3, pp.58-66, March 2008
  5. M. Kaneko, P. Popovski, "Adaptive Resource Allocation in Cellular OFDMA System with Multiple Relay Stations", VTC 2007-Spring, pp. 3026-3030, 2007.
  6. D. Byun, Y. Cho, and D. Kim, "Resource Allocation and Power Control for Mobile Relay in TDD-OFDMA Downlink", Convergence and Hybrid Information Technology, pp. 334-339, 2008.
  7. Y. Kim, and H. Kim, "Interference Detection and Avoidance Method In-Vehicle Mobile Relay Stations in IEEE 802.16j Network", EICE TRANSACTIONS on Communications, vol. E92-B, no. 11, pp. 3495-3498, 2009. https://doi.org/10.1587/transcom.E92.B.3495
  8. S. M, A. A, Y. H, and Y. Kim, "Radio Resource Management in OFDMA-Based Cellular Networks Enhanced with Fixed and Nomadic Relays", WCNC, pp. 1-6, 2010.
  9. Long Le, Hossain E, "Multihop Cellular Networks: Potential Gains, Research Challenges, and a Resource Allocation Framework," Communications Magazine, IEEE , vol.45, no.9, pp.66-73, September 2007
  10. Genc V, Murphy S, Murphy J, "Performance analysis of transparent relays in 802.16j MMR networks," Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks and Workshops, 2008. WiOPT 2008. 6th International Symposium on , vol., no., pp.273-281, 1-3 April 2008