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

The Korean Institute of Commucations and Information Sciences (한국통신학회)
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Design and Evaluation on End-to-End Seamless QoS in Mobile SCTP

이동성 SCTP 환경에서 종단간 seamless QoS 관리체계 설계 및 평가

  • 김대영 (광운대학교 컴퓨터과학과) ;
  • 안병호 (충청대학 컴퓨터학부) ;
  • 조국현 (광운대학교 컴퓨터과학과)
  • Published : 2006.10.31
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Abstract

Recently, the qualities of the call and QoS of data service in mobile wireless IP networks inclusive of internet wired networks are very challenging issues. IntServ, DiffServ and MPLS model for supporting QoS in wired networks are representative models which are investigated generally up to now. While, MIPv4(Mobile IPv4) and MIPv6 are proposed to support mobility management for mobile wireless internet networks. But, MIPv4 and MIPv6 based UDP and TCP/IP protocol have many issues to be solved like efficient QoS and frequent handover management. In this paper, we propose a efficient management platform to support seamless data services and end-to-end QoS management in IP-based wireless mobility environments using transport layer protocol, SCTP which support multi-homing and multi-streaming. We used SCTP protocol and IntServ technology for end-to-end communications to support multi-homing and seamless QoS management in the IP-based mobile wireless networks.

최근 인터넷 유선망 뿐 아니라 무선 IP 이동 망에서의 통화 품질 및 서비스 품질(QoS)의 지원 및 관리체계는 매우 중요한 문제로 대두되고 있다. 지금까지 연구된 인터넷 망의 QoS 제공 모델들은 통합서비스(IntServ) 모델, 차등서비스(DiffServ)모델 및 MPLS 등이 대표적이다. 한편, 무선 인터넷 망의 이동성 관리를 위해서 IETF에서는 MIPv4(Mobile IPv4)와 MIPv6 권고안들을 제안하고 있다. 그러나, 이들은 TCP 및 UDP/IP 환경을 근간으로 하여 QoS를 관리하고 이동성의 핸드오버(handover)등을 관리하기 위한 체계들로 많은 중요한 문제들을 야기하고 있다. 본 논문에서는 멀티홈잉와 멀티 스트리밍 기능을 제공하는 전송계층 프로토콜로 설계된 SCTP(Stream Control Transport Protocol)을 이용하여 IP 이동 환경에서 끊김없는(seamless) 서비스 품질을 제공할 수 있는 관리구조(mSCTP)를 언급하고, 이 환경에서의 종단간 QoS 관리체계를 제안한다. 이를 위해서 본 논문에서는 종단간 통신은 SCTP의 멀티홈잉 기능을 이용하고, 이를 통합서비스 모델과 결합하여 IP 이동성환경에서 끊김 없는 QoS 관리 서비스 목적을 달성할 수 있도록 설계하고 이를 평가한다.

Keywords

References

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