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Link availability modeling for routing algorithms to reduce the link break time in MANETs

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3 Author(s)
Ming Yu ; Dept. of Electr. & Comput. Eng., Florida State Univ., Tallahassee, FL, USA ; Wei Liu ; Tian Xing

In the design of mobile ad hoc networks, a challenging problem is how to route information reliably and efficiently from one node to another in moderate to high level of mobility. In this paper, we propose a new routing protocol, called link effective available time (LEAT) routing. First, we propose a method to find the link available time during an epoch by measuring the distances between the two nodes of a mobile link, instead of using complete localization information. Second, in order to reduce the link breakage, we propose a new link cost for routing, i.e., the product of the available time and availability of a link. Based on the new cost, the routing is formulated as an optimal routing problem, for which a heuristic algorithm is developed. Simulation results have demonstrated that LEAT significantly reduces link breakages while maintains network performance in delay, hopcounts and throughput, as compared to the existing routing algorithms.

Published in:

Networking, Sensing and Control (ICNSC), 2011 IEEE International Conference on

Date of Conference:

11-13 April 2011

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