Abstract: The existing energy efficient protocols, reprogramming WSNs（Wireless Sensor Networks）, are more concentrated in a static single sink network environment, which limits the network size. However, those energy efficient protocols based on dynamic multi-sink can adapt themselves to the large-scale network environment. A new energy efficient reprogramming protocols for WSNs based on multi-mobile-sink is presented in this paper. With a circular deployment whose coordinate is the center, the network topology which is divided into eight quadrants is adopted. Each mobile sink moves along the line, a straight line of the intersection of eight quadrants, and communicates with other sensors at the IEP（Information Exchange Point） which locates at the line and is apart from a distance to each other. The simulation results show that the proposed protocol has a advantage in node average energy consumption and single data packet transmission energy consumption, compared with MNP protocol.

Key words: WSN reprogramming, Mobile Sink, energy efficient

摘要： 现有的WSN再编程能量有效协议多集中在单个Sink的静态网络环境下，这就限制了网络规模。基于多Sink的动态WSN再编程能量有效协议能够适应大规模网络环境。提出一种基于多Mobile-Sink能量有效的WSN再编程协议，在该协议中，网络拓扑采用圆形部署，以圆心为坐标系原点，将圆形拓扑分为八个半象限，而每一个mobile sink沿着八个半象限相交的直线往返运动，在每条直线上隔一定距离设置一个信息交换点IEP，Sink在IEP同周围的节点通信。仿真结果表明，提出的方案同MNP协议相比，在节点平均能耗和单个数据包传输能耗两项上更有效率和优势。

关键词: WSN再编程, Mobile Sink, 能量有效