Abstract:

As the rapid development of wireless sensor network（WSN）,the demands of limited radio frequency spectrum rose sharply,thereby dealing with the frequency assignment of WSN scientifically and efficiently was a hard nut to crack.To improve the frequency utilization rate and solve the dynamic frequency configuration problem of multi-nodes in WSN,a novel spectrum management system for WSN combined with cloud computing technology was proposed in this paper.The frequency assignment system was based on the network architecture of WSN.The system also took advantage of cloud resource allocation,distributed memory and self-adaptive analysis so that it allotted the frequency dynamically and automatically in WSN.This was an efficient path to meet the needs of WSN spectrum management.

Key words: wireless sensor network, dynamic frequency assignment, cloud computing, self-adaptive analysis