中文摘要：

根据无线传感器网络中每个节点到汇聚节点的角度不同，提出一种新的角度路由协议，通过仿真和理论推导，给出了当源节点与目的节点距离固定时以平均路径跳数为指标的协议多跳性能，表明协议能以一半活动邻节点获得和地理位置路由协议相同的路由成功率，在采用载波侦听的介质访问控制（MAC）协议下，理论推导出单跳内传输单个数据包所需的能量消耗和总时间，进而分析了数据包传输时延性能，仿真表明，本协议相对于地理位置路由协议能减少能量和时延，且受优先区域个数的影响小，能有效延长网络的使用寿命。

英文摘要：

A novel routing protocol was proposed according to the angle of inclination of the nodes involved in wireless sensor network. Simulation and analysis results showed the multi-hop performance in terms of average number of hops to reach the sink node when the distance between a source and a destination was fixed. The protocol needs only half active nodes to maintain the same probability of route failure in geographical routing protocols. A media access control （MAC） protocol with collision avoidance was proposed and its energy and time performance for transmitting a packet in one hop were evaluated. Furthermore, the latency performance was analyzed. The protocol can effectively decline energy consumption and latency and both of the parameters are less sensitive to the number of priority region compared with geographical routing protocols, then the network＇s lifetime was prolonged.