energy consumption vs. latency in a new boundary identification method for wsns with a mobile sink
In a recent paper we introduced the boundary identification scheme MoSBoD for wireless sensor networks. This method exploits a mobile sink equipped with a directional antenna to accomplish the desired task. In this paper we provide a careful analysis of the MoSBoD scheme in terms of energy efficiency and completion time (latency). Based on the results, we extend our previous work along two fronts. On the one hand, in order to improve the quality of the boundary identified using MoSBoD, we use a more restrictive definition of the boundary, which leads to reduced completion time for the boundary identification as well as to reduced energy consumption from the network. On the other hand, we propose a modification of the MoSBoD method which further reduces the completion time based on a selective increase of the duty cycles of sensor nodes. This strategy also increases the energy consumption. It is therefore required to carefully balance the expected reduction in the completion time with the increase in energy consumption. Thus, we also provide a deterministic model based analysis for energy consumption and completion time of the new boundary identification scheme, comparing it with the state-of-the-art.
boundary identification sensor networks energy vs. latency