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由于网络结构多变和节点资源受限等问题,新型自组织网络都要求其路由协议不仅具有自适应性,而且要能够感知能量.提出一种能够均衡能量的自适应蚁群路由算法.该算法将作为节点参数的能量转化为链路参数,然后使用含有节点能量利用率的网络延迟作为路由代价度量,从而使得信息素既能够表示路径质量,又能够表示路径上的节点能量利用率,因此数据包逐跳路由时能够合理选择出下一跳节点.同时,蚁群优化使得该算法能够自适应网络变化,平衡流量.基于NS2的模拟实验证明该算法能够均衡节点能量从而具有较好的性能.
Due to the changeable network structure and limited resources of nodes, the new ad hoc networks require that their routing protocols not only have the adaptability but also be able to sense the energy.An adaptive ant colony routing algorithm that can balance energy is proposed. Transforming the energy as a node parameter into a link parameter and then using the network delay with node energy utilization as the route cost metric enables the pheromone to represent both the path quality and the node energy utilization on the path, Packet hopping routing can reasonably choose the next-hop node.At the same time, ant colony optimization makes the algorithm adapt to network changes and balance the traffic.Experiments based on NS2 show that the algorithm can balance node energy and thus have better performance.