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http://dx.doi.org/10.3745/KIPSTC.2010.17C.3.281

Self-Adaptive Location Checking Mechanism in Mobile Ad-hoc Networks  

Youn, Joo-Sang (동의대학교 멀티미디어공학과)
Kim, Young-Hyun (고려대학교 전자전기전파공학부)
Pack, Sang-Heon (고려대학교 전기전자전파공학부)
Abstract
In geographic forwarding algorithms, traditional route maintenance requires mobile nodes periodically exchange beacon messages with their neighbors. In beacon message based forwarding scheme, a longer interval reduces the number of beacons needed, but may result in significant location errors. Conversely, a shorter interval guarantees more accurate location information, but induces control overheads.Therefore, the fixed or dynamic interval scheme based forwarding schemes cannot adapt well to different mobility environments. Also, existing schemes result in the uncertainty of neighbor node's position in the forwarding table of mobile node. Therefore, this paper presents a self-adaptive location checking mechanism based proactive geo-routing algorithm for beacon-based geographic routing. Simulation results show that the proposed routing algorithm not only significantly increases the relay transmission rate but also guarantees the high end-to-end packet delivery in low and high mobility environments.
Keywords
Mobile Ad-hoc Networks; Self-Adaptive Location Checking; Geographic Routing Protocol; Beacon;
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