Abstract:

Our aim with this paper is to introduce a new protocol for self-organization and data-collection in heterogeneous wireless sensor networks (WSNs) called SDCP (Self-organization and Data-collection Protocol). This protocol is supported by two types of special mobile nodes (SƿN) that are rich in resources (those that can move by flying (such as Unmanned Aerial Vehicle - UAVs) and those that can move on the ground (Actors)). Through our SDCP protocol, we plan to ensure optimal performance measures, such as energy efficiency, low latency, high success rate, a moderate number of hops, and suitably interactions between static sensors and SpNs while benefiting from their mobility (in a hierarchical heterogeneous network with unstable architecture due to mobility). The SƿN moves conforming to a particular mobility model, namely random waypoint mobility model, which allows pause time. Each SƿN, while it is suspended, forms a transitory cluster that heads for collecting and processing sensed data (sensed by static sensor nodes in that cluster). During his trip, SƿN piggybacks the collected data and returns it to a base station (BS). Once the data transferred to the BS, SƿN continues its movement again for a new data collection. The simulations carried out, delighted us with valuable performance outcomes.