Abstract: For wireless sensor network，according to the protocol of directed diffusion，this paper introduces an energy-efficient topology control protocol based on gradient（ETBG） to reduce the level of the hierarchical clustering，so that time delay can be reduced.At the same time，Mobile-Base-Station is used to balance the energy and the network lifetime is loaded and prolonged.The simulation result shows the effectiveness of the method.

摘要： 对无线传感器网络，根据定向扩散协议提出一种基于梯度场拓扑控制算法（ETBG），以减少分级簇等级，从而达到降低时延的目的，同时采用基站移动的方法平衡网络负载，进一步提高网络的生存期。最后通过仿真验证算法的有效性。