Network-Calculus-Based Analysis of Power Management in Video Sensor Networks

This paper considers two important issues for video sensor networks: timely delivery of captured video stream and energy-efficient network design. Based on network calculus, it presents a unified analytical framework that is able to quantitatively weigh the tradeoff between these two factors. In particular, it derives the service curve, buffer and delay bound under single-hop and multi-hop scenarios for video sensor networks under power management. To the best of the authors' knowledge, this is the first paper that extends the network calculus theory to the domain of wireless network with the consideration of power management and wireless interference. Their analysis has been validated through experiments conducted on a video sensor network testbed.