Abstract: To reduce the energy consumption of sensor nodes and prolong the lifecycle of the wireless sensor network，the anycast technique is brought into the mobile agent routing algorithm，and a mobile agent anycast routing strategy is put forward.In this strategy，the diversity and self-adaptation characters of artificial immune system are used to find out the optimal data source access order，then an anycast algorithm based on energy restrictions is used to select a node in multiple sensing nodes of a data source.MA migrates in the nodes which satisfy the energy conditions.Simulation results show that the proposed strategy can minimize the cost to access the data sources and use the energy of nodes equably.Then the strategy can prolong the lifetime of WSN effectively，and has preferable common use character.

Key words: Wireless Sensor Network（WSN）, mobile agent, anycast, artificial immune, data source

摘要： 为了减少传感器节点的能耗，延长无线传感器网络的生命周期，将任播运用到WSN的MA路由之中，提出了一种面向数据源搜索的移动代理路由策略。首先利用人工免疫系统的多样性和自适应的特点，找出MA访问数据源的最佳顺序，然后利用基于能量限制的任播算法，在一个数据源的多个感知节点中，选择满足能量条件的节点进行迁移。仿真实验表明，该策略能够以最小代价访问各个数据源，且均衡地使用网络各节点的能量，从而延长了WSN的生存周期，具有较好的通用性。

关键词: 无线传感器网络, 移动代理, 任播, 人工免疫, 数据源