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Proceedings Paper

Fast and effective wireless handoff scheme using forwarding pointers and hierarchical foreign agents
Author(s): Sasikanth Avancha; Dipanjan Chakraborty; Dhiral Gada; Tapan Kamdar; Anupam Joshi
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Paper Abstract

Mobile IP is used to keep track of location information and make data available to the Mobile Host (MH) anytime, anywhere. In order to maintain uniform connectivity during mobility of the MH from one cell to the next, handoff latency must be minimized. In Mobile IP, when the MH is in a foreign domain far away from its home domain and Home Agent (HA), latency for registrations is high. This latency implies that many data packets could be lost during handoff from one domain to another. Hierarchical mobility management and forwarding pointers are two methods of reducing handoff latency. We propose a mobility management scheme called Hierarchical mobility management with Forwarding Pointers (HFP), that combines the two methods. In HFP, when the MH moves within a foreign domain, registration requests are handled locally. When the MH moves from one foreign domain to another, forwarding pointers between the two domains are used to track the location of the MH and perform smooth handoff. We show that HFP performs better than hierarchical mobility management during inter-domain mobility and better than forwarding pointers during intra-domain mobility. Simulation results that validate the performance improvement are presented and discussed.

Paper Details

Date Published: 27 July 2001
PDF: 11 pages
Proc. SPIE 4531, Modeling and Design of Wireless Networks, (27 July 2001); doi: 10.1117/12.434459
Show Author Affiliations
Sasikanth Avancha, Univ. of Maryland/Baltimore County (United States)
Dipanjan Chakraborty, Univ. of Maryland/Baltimore County (United States)
Dhiral Gada, Univ. of Maryland/Baltimore County (United States)
Tapan Kamdar, Univ. of Maryland/Baltimore County (United States)
Anupam Joshi, Univ. of Maryland/Baltimore County (United States)

Published in SPIE Proceedings Vol. 4531:
Modeling and Design of Wireless Networks
Edwin K. P. Chong, Editor(s)

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