Alternative Path-based Congestion Control in WSN设计了一种用于多对一的网络中的资源聚合的机制，-we design a mechanism using spare

resources to mitigate congestion in a many to one network.We

classify the node congestion into two categories according to the

reasons and propose two distributed algorithms which can find

an alternative path using the neighbor table efficiently.At the

end of this paper,we simulate the drop rate of WSN to evaluate

our mechanism.The simulation shows that using our mechanism

improves network transmission quality significantly.