Abstract:

Link stability guarantees the network performance in mobile ad hoc network. In this paper, we propose a residual lifetime based link stability routing protocol (RLTLSRP). In this protocol, the relative motion trend between nodes is distinguished according to the changes of the packets received power when a node detects that the packets received power is below a certain threshold value. Combing with the dynamic nature of the nodes and the triangle geometry theorem, the longest residual lifetime path is selected to forward data. The routing repair mechanism is invoked before the link broke up. Simulation results show that our RLTLSRP protocol can effectively reduce the number of routing failures, enhance the routing stability and prolong the network lifetime.

Key words: Mobile ad hoc；residual lifetime；link stability；AODV