Abstract: This paper proposes an energy-efficient route finding scheme based on the directional antenna in Wireless Sensor Network(WSN). This paper derives the relationship between the number of hops and the energy consumption within a certain source-destination distance by analyzing the major factor influencing the power consumption on wireless channels. Combined with the benefits from directional antennas, it proposes an energy-efficient routing scheme which selects the next hop according to the optimal route and geographic coordinates of sink and sensors. Simulation result shows the significant improvement by reducing the flooding cost, selecting an energy-efficient route and saving energy.

Key words: WSN, directional antenna, route finding

摘要： 提出无线传感器网络中基于定向天线的能量有效的路由方案。结合无线信道的特点对无线传感网中的能耗因素进行分析，得出给定源宿节点之间的距离时路径消耗总能量与中继节点数的关系。提出一个节省能量的寻路机制，在初始化阶段根据sink和邻居节点的地理信息决定能量最优的理想路径，以此为依据，结合定向天线进行能量有效的路径选择。仿真结果证明，该方案能选择一条较优路径，有效地节省能量。

关键词: 无线传感器网络, 定向天线, 寻路

CLC Number: 

• TP393