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| Cache Bypass and Local Recovery Based Route Reconstruction Scheme for Mobile Ad hoc Networks |
| Wang Yu-ming; Yang Zong-kai; Zhao Da-sheng |
| EI Dept., Huazhong University of Science and Technology, Wuhan 430074, China |
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Abstract According to the disadvantages of the existing AODV and AODV-BR schemes in Ad hoc networks, a cache bypass and local recovery based route reconstruction scheme is proposed in this paper. The mobile node listens in all frames including data packets and routing control signaling in its free time, and maintains a neighbor list and local route cache, thus well reduces signaling cost brought by the periodical HELLO messages, and gains more usable route information. Once the intermediate node detects a broken link, it tries local recovery, instead of broadcasting RREQ messages to achieve route discovery from the source node. Fast route discovery and local recovery will be achieved according to local route cache and neighbors’ route caches, thus routing control signaling and packet drop ratio are well reduced.
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Received: 24 February 2006
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2007, Vol. 29 
