Ad hoc网络中基于方向预测的能量感知路由协议

Energy aware routing protocol based on directional prediction in Ad hoc network

针对Ad hoc网络中基于方向预测的路由协议没有考虑节点的剩余能量导致的节点失效从而影响网络生存时间问题进行研究,提出了一种新的基于方向预测的能量感知路由协议——EARP_DP。提取有关目的节点距离的信息和剩余能量信息,据此计算节点的转发概率,使得网络为最优路径提供合适的带宽和电池容量。较之基于方向预测的路由协议,理论分析表明了算法的有效性,在给定的仿真场景下的结果显示,新协议保障了平均端到端时延和数据投递率,降低了平均能量消耗,网络生存时间延长了5%,提高了网络的整体性能。

To address the lifetime of network affected by battery energy consumption of nodes that causes link failure during the consideration of the existing routing protocols based on directional prediction in Ad hoc network, this paper proposed a new routing protocol based on directional prediction and energy aware——EARP_DP. It extracted the information about the distance from destination and residual energy of nodes, then calculated the forwarding probability which was adaptive to the network based on the information, so that the network had an optimal path to destination node with suitable bandwidth and battery energy. Theoretical analysis verifies the effectiveness of EARP_DP, and the simulation results in the given simulation scenario show that the new protocol has lower energy consumption, prolongs the lifetime of network by 5%, and increases the whole performance of the network significantly by comparing with the routing protocols based on directional prediction while ensuring the packet delivery ratio and the end to end delay.