Date Added: Sep 2012
Nodes that are part of a multi-hop wireless network, typically deployed in mission critical settings, are expected to perform specific functions. Establishing a notion of reliability of the nodes with respect to each function (referred to as Functional Reliability or FR) is essential for efficient operations and management of the network. This is typically assessed based on evidence collected by nodes with regards to other nodes in the network. However, such evidence is often affected by factors such as channel induced effects and interference. In multi-hop contexts, unreliable intermediary relays may also influence evidence. The authors design a framework for collaborative assessment of the FR of nodes, with respect to different types of functions; their framework accounts for the above factors that influence evidence collection.