Active Routing Maintenance Protocol for Ad-hoc Wireless Network

Ad-hoc wireless networks consist of mobile hosts in a network bereft of base stations and characterized by a highly dynamic network topology. The network topology changes frequently due to host migration, signal interference and power outages. This makes routing maintenance poses challenges in ad-hoc routing protocol design. In this paper, we presents an active routing maintenance protocol that maintains an existed route by preventing route-disconnection. By keeping track of the information of signal strength and stability of individual hosts, an active node that causes a disconnected route in future will actively issue a route reestablishing process in which active node selects one of its neighbors as the candidate to replace it. The proposed routing maintenance protocol consumes only a reasonable amount of bandwidth for the control traﬃc. There is no need for message paging or ﬂooding from source or intermediate node to destination node. We believe that the proposed scheme provides a better solution than existing approaches for routing maintenance in an ad-hoc wireless network.

並列關鍵字

active node ； route maintenance ； ad-hoc network ； mobility ； paging overhead ； routing protocol ； signal strength

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