基于移动agent的WSN低能耗数据融合策略设计

摘要

为了解决无线传感器网络中LEACH协议中传感器节点需要耗费大量能量,导致节点过早死亡,在LEACH协议的基础上,将移动agent引入到数据融合策略中,提出了一种基于移动agent和LEACH协议的数据融合策略；首先,改进簇头选举机制,考虑剩余能量和与基站的距离等因素；其次,为了避免访问冗余节点而耗费能量,确定了访问节点集合,并通过改进的遗传算法来获得访问节点序列；最后,通过仿真实验并与LEACH协议、AF-LEACH协议进行比较,文中方法节点死亡时间在470s才出现,延迟了节点死亡时间,从而延长了网络的生命周期.%In order to solve the sensor node of LEACH protocol in wireless network needs to consume a lot of energy, resulting in the node go to death prematurely, therefore, based on the LEACH protocol, introducing mobile agent into the data fusion strategy, a data fusion strategy based on mobile agent and LEACH protocol are proposed. Firstly, the cluster head selection model is improved considering the residual energy and the distance from the sink nodei secondly, for avoiding accessing the redundant node, the accessed node set is assured, and the improved gene algorism is used to obtain the sequence of the nodes set. Finally, through the simulation and compared with the LEACH protocol and AF-LEACH, the death time of node appears at 470s, the death time of node is delayed and therefore prolong the life cycle of network.