QoI-Aware Wireless Sensor Network Management for Dynamic Multi-Task Operations

This paper introduces the novel research area of the multi-task-oriented, quality-of-information (QoI)-aware operations and management of wireless sensor networks (WSNs). Primarily, this includes an investigation of new task admissionnand resource utilization mechanisms for controlling the individual QoI provided to new and existing tasks using real-time feedback-based monitoring mechanisms. The paper describes the following key design elements in support of the above: (a) the QoI satisfaction index of a task, which quantifies the degree to which the required QoI is satisfied by the WSN; (b) the QoI network capacity, which expresses the ability of the WSN to host a new task with specific QoI requirements without sacrificing the QoI of other existing tasks, and (c) an adaptive and negotiation-based admission control mechanism that reconfigures and optimizes the usage of network resources in order to best accommodate all tasks’ QoI requirements. Finally, extensive results are presented for assessing the performance of the proposed solution for the case of an intruder detection application scenario.

By: Chi Harold Liu; Chatschik Bisdikian; Joel W. Branch; Kin K. Leung

Published in: RC24933 in 2010


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