Minimizing non-optimal paths in multi-hop ad hoc network adopted IEEE 802.11 PSM


The KIPS Transactions:PartC, Vol. 14, No. 7, pp. 583-588, Dec. 2007
10.3745/KIPSTC.2007.14.7.583,   PDF Download:

Abstract

It is easy to implement a temporary network with a mobile ad-hoc network in which mobile nodes have without using a infrastructure network. They depend on their limited power. Recently, it is a hot issue to save the energy in a mobile ad-hoc network because a mobile nodes have a limited energy. Research of IEEE 802.11 PSM was proposed in a single hop ad-hoc assumption. If IEEE 802.11 PSM is applied to multi hop ad-hoc network, non-optimal paths will be generated by the mobile nodes which didn't receive a message of routing request. Non-optimal paths increase not only a network latency but also energy consumption of mobile nodes. Reconfiguring algorithm of non-optimal paths caused by the mobile nodes which didn't receive a message of routing request is proposed in this paper. A mobile node can overhear the data in his range. A wireless medium is shared by all mobile nodes using the same bandwidth. All mobile nodes lookout the non-optimal paths with these properties of a medium, if non-optimal path is generated, optimal reconfiguring will be accomplished by modifying routing table of itself or sending a request message of routing update to nearby nodes. By reconfiguring the non-optimal paths to optimized ones, network latency and energy consumption was decreased. It is confirmed to ignore the overhead caused by a algorithm presented in this paper through the result of the simulation.


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Cite this article
[IEEE Style]
D. H. Whang, J. S. Lee, S. C. Kim, "Minimizing non-optimal paths in multi-hop ad hoc network adopted IEEE 802.11 PSM," The KIPS Transactions:PartC, vol. 14, no. 7, pp. 583-588, 2007. DOI: 10.3745/KIPSTC.2007.14.7.583.

[ACM Style]
Do Hyeon Whang, Jang Su Lee, and Sung Chun Kim. 2007. Minimizing non-optimal paths in multi-hop ad hoc network adopted IEEE 802.11 PSM. The KIPS Transactions:PartC, 14, 7, (2007), 583-588. DOI: 10.3745/KIPSTC.2007.14.7.583.