Survey of Congestion Control Technology for Wireless Sensor Networks

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.