A new hierarchical belief-rule-based method for reliability evaluation of wireless sensor network |
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| Affiliation: | 1. Harbin University of Science and Technology, Harbin, HeiLongJiang 150080, PR China;2. HeiLongJiang Agricultural Engineering Vocational College, Harbin, HeiLongJiang 150088, PR China;3. HaiNan Normal University, HaiKou, HaiNan 571158, PR China;4. High-Tech Institute of Xi''an, Xi''an, Shaanxi 710025, PR China;5. Xi''an University of Technology, Xi''an 710048, PR China;1. School of Mechatronic Engineering, Changchun University of Technology, Changchun, China;2. High-Tech Institute of Xi''an, Xi''an, China;3. School of Information Science and Technology, Hainan Normal University, Haikou, China;1. School of Automation, Hangzhou Dianzi University, Hangzhou 310018, PR China;2. School of Software Engineering, Shenzhen Institute of Information Technology, Shenzhen 518172, PR China;3. High-Tech Institute of Xi''an, Xi''an 710025, PR China;4. Decision and Cognitive Science Research Centre, Manchester Business School, The University of Manchester, Manchester M15 6PB, United Kingdom;5. School of Information System and Management, National University of Defense Technology, Changsha 410073, PR China;6. State Key Laboratory of Complex System Simulation, Beijing Institute of System Engineering, 10 An Xiang Bei Li Road, Beijing, PR China;1. School of Mechanical Engineering, Institute of Intelligent Manufacturing and Information Engineering, Shanghai Jiao Tong University, Shanghai 200240, China;2. Heudiasyc Laboratory, UMR CNRS 7253, Research Center of Royallieu, Sorbonne Universités, Université de Technologie de Compiègne, Compiègne 60203, France;3. Shanghai Key Lab of Advanced Manufacturing Environment, Shanghai, China |
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| Abstract: | With the wide applications of wireless sensor network (WSN), its reliability evaluation has been attracted more attention. The reliability of a WSN is affected mainly by internal and external factors, which include internal faults and external attacks. In this paper, a reliability evaluation method based on a hierarchical belief rule base (BRB) method is proposed for the reliability evaluation of the WSN. First, the factors affecting the reliability of a WSN are analysed, and the reliability evaluation process that considers the WSN fault evaluation and WSN security evaluation is described. Second, the reliability evaluation model is constructed based on the hierarchical BRB model. The qualitative knowledge is used by the BRB model to build initial belief rules, and the quantitative data are used to optimize the initial parameters of the BRB model, which can utilize various types of uncertainty information effectively. Therefore, the proposed method can be applied to the WSN reliability evaluation, which is a complex and uncertain problem. Finally, a simulation case study and an actual case study of wellhead blowout monitoring are conducted to verify the effectiveness of the proposed method. The reliability results of actual WSN are obtained by the standard testing method, where the loss and accuracy rates of the collected data are treated as the observation factors for obtaining the actual reliability values. The estimated results of hierarchical BRB model are very close to the actual reliability values, which shows that the proposed method can be used for evaluating the reliability of the actual WSN accurately. |
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