Surveillance with Wireless Sensor Networks

Abstract—Recent work has addressed the impact of link burstiness as a local phenomenon. To achieve better end-to-end performance in a mission-critical application of wireless sensor networks, such as the infrastructure surveillance system, the routing faces three issues in message delivery: whether this link burstiness has any mutual impact with other delay factors, whether a failed transmission is worthy to retry, how the number of retrials is determined so that the delay cost can be calculated for the use of an alternative path. In this paper, we provide a fully distributed solution with a new measurement. Our routing uses this reference information to select a relatively better successor candidate in each 1-hop advance. Our analytical and experimental results show the effectiveness of this approach in reducing the end-to-end delay, even though many unexpected changes of link quality or node availability occur. I