Detection and Repair of Software Errors in Hierarchical Sensor Networks

Abstract— Sensor networks are being increasingly deployed for collecting critical data in various applications. Once deployed, a sensor network may experience faults at the individual node level or at an aggregate network level due to design errors in the protocol, implementation errors, or deployment conditions that are significantly different from the target environment. In many applications, the deployed system may fail to collect data in an accurate, complete, and timely manner due to such errors. If the network produces incorrect data, the resulting decisions on the data may be incorrect, and negatively impact the application. Hence, it is important to detect and diagnose these faults through run-time observation. Existing technologies face difficulty with wireless sensor networks due to the large scale of the networks, the resource constraints of bandwidth and energy on the sensing nodes, and the unreliability of the observation channels for recording the behavior. This paper...

• Type: Conference
• Year: 2006
• Where: SUTC
• Authors: Douglas Herbert, Yung-Hsiang Lu, Saurabh Bagchi, Zhiyuan Li
• Keywords: Individual Nodes, Observed Variables, Sensor Network, SUTC 2006