【摘要】 针对传感器网络的特点,提出了一种具有实时性的路由协议.该路由协议可以保证端到端的数据传输具有确定的最大时延.该协议采用基于地理位置的数据转发,相邻传感器节点之间定时交换信息,使用无状态单跳延迟保证转发策略,实现了端到端数据传输的实时性保证.当网络某处发生拥塞时,采用后退重新路由策略,实现了对网络拥塞的自适应性.仿真结果显示该实时协议是可行的和有效的,能满足传感器网络实时性应用的需要.更多还原

【Abstract】 Based on the characteristics of the wireless sensor networks, a real-time routing protocol was proposed. The protocol provided a predictable upper bound for the end-to-end delivery delay. The real-time end-to-end guarantee was achieved by geographic forwarding, periodic message exchange between neighbor nodes, and stateless one-hop delay guarantee. If congestion appears, back-off rerouting is adopted. This method can be adaptive to network congestion. Experimental results show that the real-time routing protocol is correct and efficient. It can be used for real-time sensor network applications.更多还原