Mobility management of transport protocol supporting multiple connections

Authors:
Kazuya Tsukamoto;Yoshiaki Hori;Yuji Oie
Affiliations:
Kyushu Institute of Technology, Iizuka, Japan;Kyushu University, Fukuoka, Japan;Kyushu Institute of Technology, Iizuka, Japan
Venue:
Proceedings of the second international workshop on Mobility management & wireless access protocols
Year:
2004

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Abstract

A mobility management scheme for handling seamless handoffs between appropriate datalink interfaces is presented. The future mobile environment will be characterized by multimodal connectivity to the Internet with dynamic switching based on many factors. Many technologies have been proposed to support host mobility across diverse wireless access networks, and operate in various layers of the network architecture. Our major concern is the transport protocol that recovers packets lost during handoffs and controls transmission speed to achieve efficient communication. In this paper, we first examine the various latencies associated with the handoff mechanism, and discuss the limited performance of existing technologies based on a single transport connection. We then propose a new mobility management scheme that resolves the problems of limited performance by transport protocol supporting multiple connections. We compare the performance of the proposed scheme with existing technologies, and demonstrate that the proposed scheme achieves excellent goodput performance.