Energy-aware test connection assignment for the self-diagnosis of a wireless sensor network

作     者：Weber, Andréa Kutzke, Alexander Robert Chessa, Stefano 

作者机构：Dept. Informatics Centro Politécnico Federal University of Paraná Jdim. Américas 81531-990 Curitiba Pr Brazil Institute for Science and Technology of Information Via G. Moruzzi 1 56124 Pisa Italy Computer Science Department University of Pisa Largo Pontecorvo 3 56127 Pisa Italy 

出 版 物：《Journal of the Brazilian Computer Society》 (J. Braz. Comput. Soc.)

年 卷 期：2012年第18卷第1期

页      面：19-27页

核心收录：

学科分类：0810[工学-信息与通信工程] 08[工学] 0807[工学-动力工程及工程热物理] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

主　　题：Energy utilization 

摘      要：Sensor nodes in Wireless Sensor Networks (WSNs) are prone to failures due to the fragile hardware, malicious attacks, or hostile or harsh environment. In order to assure reliable, long-term monitoring of the phenomenon under investigation, a major challenge is to detect node malfunctions as soon as possible and with an energy efficient approach. We address this problem by using a system-level diagnosis strategy in which the sink issues to the WSN a self-diagnosis task that involves a number of mutual tests among sensors. Based on the test outcomes, the sink executes the diagnosis procedure. This work presents an algorithm for the assignment of tests among the sensors of a WSN that assures the desired system diagnosability and that is aware of energy consumption. We show by simulation experiments that the present approach, as compared to a previous one, enables consistent energy savings on the sensors. © 2012 The Brazilian Computer Society.