无线传感器网络拥塞控制技术研究进展

Survey of Congestion Control Technology for Wireless Sensor Networks

无线传感器网络中的数据传输模式主要是多对一的。由于传感器节点资源严重受限、通信链路易受干扰等因素,使得拥塞问题十分严重。而传统的传输控制协议,不管是有线网络上的还是自组织网络上的,并不完全适用于无线传感器网络。拥塞控制技术作为传输层协议的关键技术之一,是传感器网络协议研究中的一个热点问题。从拥塞控制技术的研究背景入手,综述了当前该领域具有代表性的工作,对涉及的主要方法进行了分析比较。最后进行了总结并指出了传感器网络拥塞控制技术未来的研究方向。

In Wireless Sensor Networks （WSN）, the main communication mode is many-to-one. Because of the energy limitation of motes,and interference of wireless links, congestion control problem is very severe. Traditional transport protocols in neither wired network nor Ad-Hoc network can be applied in WSN directly. Congestion control technology, as a key component of transport protocol, is the research focus in WSN. This paper introduced the research background of congestion control technology firstly,and then gave a survey on the recent novel mechanisms. Then we analyzed and compared details of the main approach concerned. In the end,we summaried the current research work and pointed out the future research direction.