Access Control Model Based on Time Synchronization Trust in Wireless Sensor Networks

• DOI: 10.3390/s18072107
• Publication Date: 2018-07-02T14:56:52Z
• Authors: Zhaobin Liu; Qiang Ma; Wenzhi Liu; Victor S. Sheng; Liang Zhang; Gang Liu
• Keywords: interference noise; reliability; Chemical technology; access control; 0202 electrical engineering, electronic engineering, information engineering; TP1-1185; 02 engineering and technology; time synchronization; wireless sensor networks; Article

Internal reliability and external safety of Wireless Sensor Networks (WSN) data transmission have become increasingly outstanding issues with the wide applications WSN. This paper proposes a new method for access control mitigation interfering noise in time synchronization environments. First, formal definition is given regarding impact interference has on clock skew offset each node. The degree node behavior estimated dynamically from perspective time-stamp changes caused by noise. Secondly, general model proposed to resist invasion interference. A prediction constructed using Bayesian calculating neighbor model. Interference noise, which attacks synchronization, regarded as key factor probability estimation reliability. result calculations determines whether it necessary initiate filtering. Finally, division trust levels bilinear employed lower improve quality detection. Experimental results show that this advantages system overhead, energy consumption testing errors, compared its counterparts. When disturbance intensity WSN increases, optimized algorithm converges faster network communication load.