Research And Implementation Of Anti-jamming Technology In Zigbee Network

Along with the rapid development of the Internet of Things and smart homes and the reduction in the cost of wireless communication equipment in recent years,the zigbee technology has been rapidly developed.However,this technology adpots the international free ISM band,which strongly interferes the wireless devices that have already been communicated in that band.Currently the zigbee protocol mainly improves the Anti-jamming capability of zigbee device by using direct sequence spread spectrum technology and selecting the best channel communication technology.Nevertheless,there are still lots of limitations extised in the practical using of these traditional methods for performance improvement.Based on the space-time performance of wireless links,a comprehensive parameters interference assessment method is designed in this paper and by which the interference degree of zigbee network is evaluated.And on this basis the writer takes the optimized channel sequence as an entry point and the prediction results of hidden Markov model as theoretical support.Firstly,fuzzy C-means clustering is used to classify the channel state.Then the interference is avoided in accordance with the interference avoidance process to improve the zigbee network's anti-jamming capability and zigbee network communication performance.