Delay analysis of large-scale wireless sensor networks

Abstract

For wireless sensor network applications, the latency from the sensing of the event to the reporting through the network is critical. In this paper, we try to characterize the delay incurred by sensed packets traversing across the network. We derive the source and destination distance, hop count distribution under typical sensor traffic patterns. Then how various network parameters, such as the node density and the transmission range, impact on delay and delay distribution is investigated. The results of our research can provide insights in designing both flat and cluster-based sensor networks to meet the specified delay requirement. © Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering 2010.