Journal of KIISE:Information Networking (한국정보과학회논문지:정보통신)

Korean Institute of Information Scientists and Engineers (한국정보과학회)
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A Resource Reservation Protocol for Mobile Hosts in Wireless Mobile Networks

무선 이동망에서의 이동 호스트를 지원하기 위한 자원 예약 프로토콜

  • 김민선 (한국루슨트테크놀로지스) ;
  • 서영주 (포항공과대학교 컴퓨터공학과) ;
  • 안성옥 (배재대학교 컴퓨터공학과)
  • Published : 2002.08.01
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Abstract

Providing a mobile host with its required QoS is highly influenced by its mobility. The resource ReSerVation Protocol(RSVP) establishes and maintains a reservation state to ensure a given QoS level along the path from the sender to the receiver. However, RSVP is designed for use in fixed networks and thus it is inadequate in the mobile networking environment where a host changes its point of attachment. In this paper, we propose a new resource reservation protocol, RSVP-RA(RSVP by RSVP Agent) for mobile hosts. Our protocol assumes IETF Mobile IP as a mobility support mechanism. The proposed protocol introduce a new protocol entity - RSVP agent - to manage reservations in a mobile host's current visiting network. RSVP Agent is located in a local network and makes resource reservations in neighboring cells that the mobile host is expected to visit in the future. Thus, the proposed Protocol can provide a seamless QoS to the mobile host and significantly improve the scalability problem of RSVP by reducing the end-to-end signalling messages acrossing the backbone networks. The proposed protocols reduce packet delay, bandwidth overhead and the number of RSVP messages to maintain reservation states. We compared the performance of our proposed protocol with other proposed protocols in terms of signalling overhead, packet delay by simulation.

실시간 서비스를 제공하는데 있어서 호스트의 이동성은 통신경로의 변경으로 인해 QoS에 심각한 영향을 끼치게 된다. 현재 QoS를 위한 시그널링 프로토콜인 자원 예약 프로토콜(Resource Reservation Protocol : RSVP) 은 고정 호스트만을 가정하고 있으므로 이동 컴퓨팅 환경에서 그대로 사용하기에는 적합하지 않다. 본 논문에서는 이동 호스트를 지원하는 무선 모바일 네트워크에서 RSVP 에이전트를 사용하여 Mobile IP와 연동하는 새로운 자원예약 시그널링 프로토콜인 RSVP-RA(RSVP by RSVP Agent)를 제안한다. 제안된 RSVP-RA 프로토콜은 RSVP 에이전트를 사용하여 차후에 방문이 예상되는 주위의 셀들에 미리 자원을 예약해 줌으로써 이동호스트의 이동성에 따른 유연한 QoS 제공과 종단간 자원예약의 필요성을 제거하여 네트워크의 시그널링 오버헤드를 줄여주는 장점을 갖는다. 본 논문에서는 제안하는 RSVP-RA의 기본 구조 및 이동성, 자원예약 지원기능 등을 설명하고, 기존의 관련연구에서 제안했던 프로토콜과 RSVP-RA 프로토콜을 시그널링 오버헤드 및 패킷지연 등의 성능지표를 시뮬레이션을 통해 비교 평가하였다.

Keywords

References

  1. R. Braden, L. Zhang, Resource ReSerVation Protocol(RSVP) -- Version 1 Message Processing Rules, RFC 2209, September 1997
  2. A. K. Talukdar, B. R. Badrinath and A. Acharya, MRSVP: A Reservation protocal for an Integrated Services Packet Networks with Mobile hosts, Tech report TR-337. Rutgers university
  3. I. Mahadevan and K. M. Sivalingam, An Architecture for QoS guarantees and Routing in Wireless/Mobile Networks, WOWMOM 98 https://doi.org/10.1145/288338.288355
  4. I. Mahadevan and K. M. Sivalingam, Architecture and experimental results for quality of service in mobile networks using RSVP and CBQ, Wireless Networks Vol.6, 2000, pp. 221-234 https://doi.org/10.1023/A:1019141631622
  5. A. Terzis, M. Srivastaba and L. Zhang, A simple QoS signaling Protocol for Mobile hosts in the Integrated Services Internet, IEEE Infocom'99 https://doi.org/10.1109/INFCOM.1999.751655
  6. C. Perkins, IP mobility Support, RFC 2002
  7. W. T. Chen and L. C. Huang, RSVP Mobility Support: A Signaling Protocol for Integrated Services Internet with Mobile Hosts, IEEE Infocom'2000 https://doi.org/10.1109/INFCOM.2000.832519
  8. S. K. Das, R. Jayaram, N. K. Kakani and S. K. Sen, A Resource Reservation Mechanism for Mobile Nodes in the Internet, IEEE 49th Vehicular Technology Conference(VTC'99) https://doi.org/10.1109/VETEC.1999.778378
  9. S. K. Das, M. Chatterjee and N. K. Kakani, Qos Provisioning in Wireless Multimedia Networks, IEEE WCNC'99 https://doi.org/10.1109/WCNC.1999.796987
  10. C. Perkins, D. B. Johnson, Route Optimization in Mobile IP,Internet Draft, work in progress, Feb 2000
  11. A. Terzis, J. Krawczyk, J. Wrocalwski and L. Zang, RSVP Operation Over IP Tunnels, RFC 2746
  12. R. Braden, D. Clark, and S. Shenker, Integrated Service in the Internet Architecture: an Overview, RFC 1633, June 1994
  13. P. Paul, RSVP and Integrated Services in the Internet: A tutorial, IEEE Communications Magazine, May. 1997 https://doi.org/10.1109/35.592102
  14. X. Xiao, L. M. Ni, Internet QoS: A Big Picture, IEEE Network, Mar. 1999 https://doi.org/10.1109/65.768484
  15. C. Metz, RSVP: General-purpose signaling for IP, IEEE Internet Computing, May. 1999 https://doi.org/10.1109/4236.769427
  16. L. Zhang, Resource ReServation Protocol(RSVP)-Version 1 Functional Specification, RFC 2205
  17. D.B. Johnson, C. Perkins, Mobility Support in IPv6, Internet Draft, work in progress, Apr 2000
  18. Daniel O. A., Emmanuel Agu, Mobile Extensions to RSVP, in the Proceedings of the Sixth International Conference on Computer Communications and Networks(ICCCN'97) https://doi.org/10.1109/ICCCN.1997.623302
  19. Rohit Ghai and Suresh Singh, An Architecture and Communication Protocol for Picocellular Networks, IEEE Personal Communications Magazine Vol.1(3), 1994, pp.36-46 https://doi.org/10.1109/MPC.1994.311830