Location-aware routing protocol with dynamic adaptation of request zone for mobile ad hoc networks |
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Authors: | Tzay-Farn Shih Hsu-Chun Yen |
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Affiliation: | (1) Department of Computer Science and Information Engineering, Chaoyan, University of Technology, Taichung, Taiwan, 41349, R.O.C.;(2) Department of Electrical Engineering, National Taiwan University, Taipei, Taiwan, 106, R.O.C. |
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Abstract: | One possibility direction to assist routing in Mobile Ad Hoc Network (MANET) is to use geographical location information provided
by positioning devices such as global positioning systems (GPS). Instead of searching the route in the entire network blindly,
position-based routing protocol uses the location information of mobile nodes to confine the route searching space into a
smaller estimated range. The smaller route searching space to be searched, the less routing overhead and broadcast storm problem
will occur.
In this paper, we proposed a location-based routing protocol called LARDAR. There are three important characteristics be used
in our protocol to improve the performance. Firstly, we use the location information of destination node to predict a smaller
triangle or rectangle request zone that covers the position of destination in the past. The smaller route discovery space
reduces the traffic of route request and the probability of collision. Secondly, in order to adapt the precision of the estimated
request zone, and reduce the searching range, we applied a dynamic adaptation of request zone technique to trigger intermediate nodes using the location information of destination node to redefine a more precise request zone.
Finally, an increasing-exclusive search approach is used to redo route discovery by a progressive increasing search angle basis when route discovery failed. This progressive
increased request zone and exclusive search method is helpful to reduce routing overhead. It guarantees that the areas of
route rediscovery will never exceed twice the entire network. Simulation results show that LARDAR has lower routing cost and
collision than other protocols.
Tzay-Farn Shih was with Department of Electrical Engineering, National Taiwan University.
Tzay-Farn Shih received the B.S. degree in Information Management from Chinese Culture University, Taiwan, in 1992, the M.S. degree in Computer
Science Engineering from Tatung University, Taiwan, in 1996, and the Ph.D. degree in Electrical Engineering from National
Taiwan University, Taiwan, in 2006. He is presently an assistant professor of Computer Science and Information Engineering
at Chaoyang University of Technology, where he initially joined in August 2006. He is currently an overseas member of the
Institute of Electronics, Information and Communication Engineers (IEICE). His current research interests include computer
simulation, computer networks routing protocol, wireless networks, Mobile Ad Hoc networks and sensor networks.
Hsu-Chun Yen was born in Taiwan, Republic of China, on May 29, 1958. He received the B.S. degree in electrical engineering from National
Taiwan University, Taiwan, in 1980, the M.S. degree in computer engineering from National Chiao-Tung University, Taiwan, in
1982, and the Ph.D. degree in computer science from the University of Texas at Austin, U.S.A., in 1986.
He is presently a Professor of Electrical Engineering at National Taiwan University, where he initially joined in August 1990.
From August 1986 to July 1990, he was an Assistant Professor of Computer Science at Iowa State University, Ames, Iowa, U.S.A.
His current research interests include Petri net theory, formal methods, design and analysis of algorithms, and complexity
theory. Dr. Yen is an editor of International Journal of Foundations of Computer Science (IJFCS, World Scientific Publisher). |
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Keywords: | MANET Location-aware Position-based routing protocol GPS |
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