Agent is widely used in the wireless sensor network. Compared with the traditional routing scheme, Agent can greatly reduce the occupation of the network bandwidth, cut down the amount of data that network nodes receive and send, and extend the lifetime of the network; besides it has good scalability and security. In the paper, Agent is introduced to be used in wireless sensor networks. An Energy-efficient Agent Routing Protocol is proposed, which can take into account such things as data aggregation, routing selection and energy saving. The simulation results show that the scheme can balance energy cost of the network nodes, and prolongs the lifetime of the network in a more efficient way.%将Agent技术应用于无线传感器网络中，提出一个基于Agent的能量有效路由协议，兼顾数据融合、路由选择和节约能耗三项功能，仿真结果显示，该方案能够使网络中节点能量消耗更平衡，从而更有效地延长网络的使用寿命。
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