A mobility management scheme using SCTP-SIP for real-time services across heterogeneous networks

Authors:
Hyelim Park;Myungchul Kim;Sooyong Lee;Sungwon Kang;Yongho Kim
Affiliations:
Information and Communications University, Yuseong-gu, Daejeon, Korea;Information and Communications University, Yuseong-gu, Daejeon, Korea;Information and Communications University, Yuseong-gu, Daejeon, Korea;Information and Communications University, Yuseong-gu, Daejeon, Korea;InfraLab Korea Telecom, Seocho-gu, Seoul, Korea
Venue:
Proceedings of the 2009 ACM symposium on Applied Computing
Year:
2009

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Abstract

The Session Initiation Protocol (SIP) has been enhanced to support seamless mobility in heterogeneous networks. However, it still suffers from significant handoff delays and packet losses unacceptable for real-time multimedia services. In this paper, we propose a mobility management scheme for real-time services across heterogeneous networks that combines SIP and Stream Control Transmission Protocol (SCTP). Our scheme ensures transport-layer continuance through the multi-homing functionality of SCTP while maintaining location and network transparency through SIP without the use of re-invite message signaling. An evaluation of our approach demonstrates that it provides seamless mobility while satisfying the Quality of Service (QoS) requirements for real-time multimedia services without any changes in the underlying network infrastructure.