基于WSN会聚点部署及拥塞控制策略研究

Control Tactics Study of Aggregation Forwarding Node Disposition and Congestion Based on WSN

为了解决无线传感器网络中会聚点(AFN,Aggregation Forwarding Node)的部署及拥塞控制策略问题,根据传感器网络的自身特点,并通过对传统网络和无线传感器网络中QoS的对比研究,提出了将AFN放置在具有最高分组流量的源端方案。这样既能够增加网络的可靠性,又能降低分组延迟和减少传输能耗。在网络拥塞期间,为了保证实时数据流的质量和关键性业务流的精度,采用了自适应的拥塞控制策略,并对其算法进行了分析研究,通过创建多元路径自适应地调整资源供应,增加传送的分组精度,实验表明效果良好。

In the interest of resolving the issue of AFN disposition and congestion control tactics of Wireless Sensor Networks （ WSN）, based on the self problems of WSN, and by using the contrast research of QoS between tradition networks and WSN, this paper brings forward the scheme that AFN is laid at source where there are tiptop grouping flows. So, not only reliability of networks is enhanced, but also grouping delay and transmission costs are reduced. In the process of networks congestion, this paper puts forward the self - improvement congestion control tactics in order to guarantee quality of real time streams and precision of key flows. Researching and analyzing the arithmetic established multi - path routes are established in order to adjust resource provision and increase grouoing nrecision. The effect is good.