Mobility

Enabling Low Bit-Rate and Reliable Video Surveillance Over Practical Wireless Sensor Network

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Executive Summary

With the rapid development of hardware and embedded systems, Wireless Sensor Networks (WSNs) are being developed for surveillance applications. While meriting more in-depth research and development, deploying a practical WSN for surveillance is challenging due to the limited power and bandwidth of the battery operated sensor nodes. In this paper, the authors first propose an energy-efficient image transportation strategy through motion detection. In case of data delivery over long distance, this paper further investigates the use of cooperative communications to design a reliable image transmission scheme over WSN, and demonstrates its effectiveness in improving network reliability in wireless multimedia sensor networks.

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