Best cover set selection with multi-criteria approach in mission-critical surveillance for Wireless Image Sensor Networks

Mission-critical surveillance applications such as intrusion detection or disaster response have vital requirement in QoS. We consider a Wireless Image Sensor Network (WISN) with a scheduling of image sensor node´s activity based on the application criticality level. This approach allows sentry nodes capable of detecting intrusions with a higher probability and alerting neighbor nodes as well as activating one of its cover sets for disambiguation purposes for instance. In this paper, we propose a multi-criteria approach to select the suitable cover set for reliable transmission of images in mission-critical applications. The proposed approach takes into account cover set size and energy, topology and routing information that affect the image quality at the sink in a multi-hop transmission network. The results show that our proposal provides low packet loss probability, low latency, and higher visual quality of received images at the Sink.