一种用于道路交通的无线传感网拓扑结构

Wireless Sensor Network Topology for Road Traffic

无线传感器网络在道路交通监控中的应用日益广泛.在公路带上形成无线传感器网络拓扑结构时,传统的做法是将结点随机放置在公路带上,这种做法不仅消耗了大量结点能量,且降低了整个网络的吞吐量.本研究提出了一种新的用于道路交通的无线传感网拓扑结构.该拓扑结构采用了新的数据帧传输格式和线形置放策略,从而可减少网络负载量和冗余信息的传输.仿真结果表明,该策略可以节省结点的能耗,有效延长网络的生存时间,提高网络的吞吐量.

Applications of wireless sensor network in road traffic monitoring are rapidly expanded. Traditional topology places network nodes randomly, leading to waste of energy and decreased network throughput. We propose a new way to form the network topology for road traffic. This is achieved by applying a new data frame and a linear placement strategy to reduce both the network load and the redundant information transmission. Simulation results show that the proposed strategy can save node energy, prolong the network life span, and increase network throughput.