Title:	A NEW ROUTE OPTIMIZATION TECHNIQUE FOR MOBILE IP
Author(s):	Moheb R. Girgis , Tarek M. Mahmoud , Youssef S. Takroni , Hassan S. Hassan
ISBN:	978-972-8924-62-1
Editors:	Hans Weghorn and Ajith P. Abraham
Year:	2008
Edition:	Single
Keywords:	Mobile IP, Tunneling, Home Network, Foreign Network, Route Optimization, Triangle Routing Problem
Type:	Poster/Demonstration
First Page:	221
Last Page:	224
Language:	English
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Paper Abstract:	Mobile IP (MIP) is an Internet Protocol that allows mobile nodes to have continuous network connectivity to the Internet without changing their IP addresses while moving to other networks. The packets sent from Correspondent Node (CN) to a Mobile Node (MN) go first through the mobile node’s Home Agent (HA), then the HA tunnels them to the MN’s foreign network. One of the main problems in the original MIP is the triangle routing problem. Triangle routing problem appears when the indirect path between CN and MN through the HA is longer than the direct path. This paper proposes a technique to improve the performance of the original MIP by reducing the delay for all the packets transferred between the CN and the MN. In this technique, tunneling occurs at two levels above the HA in a hierarchical network. To show the effectiveness of the proposed technique, it is compared with the original MIP and another technique for solving the same problem in which tunneling occurs at one level above the HA. The simulation of the original MIP, the “one level up” technique and the proposed MIP is carried out using NS-2 simulator on Linux platform. The simulation results show that the proposed technique is more effective than the others.
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