移动Ad Hoc网络中基于剩余生存时间的链路稳定性路由协议

在移动Ad Hoc网络中,链路的稳定性是网络性能的保证。提出一种基于剩余生存时间的链路稳定性路由协议—RLT-LSRP,该协议中当节点检测到分组接收功率小于某一阈值时,依据分组接收功率的变化来区分节点间相对运动的趋势,结合节点的动态属性和三角形几何定理,选择链路剩余生存时间最长的路径进行数据转发,在链路断开之前提前启动路由修复机制。实验结果表明:RLT-LSRP协议能够有效地减少路由失效次数,增强路由的稳定性,延长网络的生存时间。

Residual Lifetime Based Link Stability Routing Protocol in Mobile Ad Hoc Network

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.