基于移动Agent的能量平衡螺旋形路由算法

针对节点均匀分布的无线传感器网络,提出一种基于移动Agent（MA）的能量平衡螺旋形路由（EBSRMA）算法.网络首先以定向扩散方式建立全网最小跳数梯度环.然后MA从最外环开始,以最短延时策略和优先访问外环策略为迁移原则,并通过访邻、标轨和找源3种方法完成网络的螺旋形路由.最后MA将迁移过程中收集的全网数据带回给Sink节点.仿真表明：EBSRMA可以有效平衡网络能量、延长网络寿命以及提高数据收集率.与定向扩散（DD）路由算法相比,该路由算法节能效果显著.

Energy balanced spiral routing algorithm based on mobile agent

For uniform distributed wireless sensor networks （WSNs）, put forward an energy-balanced spiral routing algorithm based on mobile agent （EBSRMA）. At first, using directed diffusion method, the minimum hop gradient ring is established. Then, MA works from the outset loop and migrates based on shortest time delay strategy and priority visiting tl~ outer loop strategy, and accomplishes the spiral routing by the way of visiting neighbor, marking trace and finding source. At last, MA will take the whole network data which are collected during migrating back to sink node. Simulation results shows that, by EBSRMA, the energy of network can be balanced effectively, the life of the network can be prolonged and the rate of data collection can be improved. Compared with DD routing algorithm, energy saving effect of EBSRMA is obvious.