Mobility and QoS support in 4G wireless networks

Taehyoun Kim, Jai Yong Lee

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Fourth-generation (4G) wireless networks will be the IP-based cellular networks integrating Internet with the existing cellular networks. Two important issues should be concerned in the IP-based cellular networks, IP mobility, and quality-of-service (QoS) guarantees. In this paper, we proposed two mechanisms to solve the problems with IP mobility and RSVP-based QoS provisioning. First, virtual-IP (VIP) allocation scheme in areas with a large rate of handoff can minimize the wireless signaling overhead due to IP mobility. The access routers (ARs) create dynamically the VIP zone by using the measured handoff rate derived from the history of the handoff into neighboring ARs. We show that VIP allocation scheme reduces the binding update messages in the wireless link than hierarchical mobile IPv6. Second, the new advance resource reservation protocol called proportional aggregate RSVP (PA-RSVP) can minimize waste of bandwidth and soft state refresh overhead due to IP mobility. It allocates the bandwidth in advance between the mobility anchor point and neighboring ARs using proportional aggregate reservation. We also show that PA-RSVP provides an improved performance over existing protocols.

Original languageEnglish
Pages (from-to)178-191
Number of pages14
JournalJournal of Communications and Networks
Volume7
Issue number2
DOIs
Publication statusPublished - 2005 Jan 1

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Routers
Wireless networks
Quality of service
Bandwidth
Network protocols
Anchors
Telecommunication links
Internet

All Science Journal Classification (ASJC) codes

  • Information Systems
  • Computer Networks and Communications

Cite this

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Mobility and QoS support in 4G wireless networks. / Kim, Taehyoun; Lee, Jai Yong.

In: Journal of Communications and Networks, Vol. 7, No. 2, 01.01.2005, p. 178-191.

Research output: Contribution to journalArticle

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