无线传感器网络拓扑控制策略研究

节能设计是无线传感器网络的首要设计目标，拓扑控制是实现该目标的重要技术之一，其主要目标是在保证网络连通和覆盖的前提下剔除不必要的通信链路，降低节点能耗和减少通信干扰，为MAC协议和路由协议的顺利执行提供基础。文中对传感器网络拓扑控制策略进行了的分析。最后针对目前传感器节点成本仍然很高这一特点，通过仿真得出了在节点随机配置的情况下，保证网络连通和覆盖所需的至少节点数目。并通过仿真分析证明了方案的可行性。

Topology Control Strategy for Wireless Sensor Networks

Energy-saving design is the primary design objective for wireless sensor networks. Topology control strategy aims at deleting the unnecessary communication links on condition that the coverage and the connectivity of the network are ensured, decreasing energy consumption of the node and reducing the communication interference. Besides, topology control algorithm also provides the foundation for the implementation of MAC protocol and routing protocols. This paper sums up and analyzes the existing topology control algorithms. Finally, on considering the high cost of certain sensor nodes, simulation is carried out, and it indicates, under the random deployment of nodes, the least number of sensor nodes that can ensure the coverage and connectivity of the network. Simulation experiment has also proved the feasibility of this topology control strategy.