对无线传感器网络的设计和布局中，多Sink 节点的布局是其拓扑设计的关键，对网络通信的能量控制至关重 要。本文通过分析其Sink 节点布局模型，提出一种改进的三链混合遗传算法对Sink 节点布局求取最优解。实验表明，三链混 合遗传算法在针对Sink 节点的布局算法中相对于枚举算法，具有较优解，并且算法效率高，可降低无线传感器网络的能耗，改 善网络性能。

In the design and layout of Wireless Sensor Networks (WSNs), multiple Sink node locating is the key step in network topology. It is very important to control energy-consumption of network communication. By analyzing the layout of Sink node model, an improved three chain hybrid genetic algorithm is proposed to solve the Sink node’s optimal location problem. The experimental results show that compared with the enumeration algorithm, the three chain hybrid genetic algorithm for the Sink node has better solutions and higher efficiency of the algorithm, which can reduce the energy consumption of wireless sensor networks and improve the network performance.