Efficient route establishment and maintenance in wireless sensor networks with mobile base stations

Abstract

The integration of ground wireless adhoc networks and airborne UAVs is a promising solution for realtime data collection in wireless sensor networks. Such networks play a vital role in many mission critical tasks such as forest firefighting and battlefield support. An important problem is to establish/maintain efficient routing structures in the ground sensor network for packet relaying. Our problem is unique in that the base stations are non-static, which necessitates frequent update of the routing structure. The performance of flooding based methods are evaluated. Particularly, in order to deal with non-uniform node density, we propose to introduce an artificial delay factor to control the flooding pattern. We mathematically prove that the delay should be proportional to local node density. Our simulation results show that the proposed method achieves good load balance among multiple base stations.

Reusable Design of Data Visualization Software Architecture for Unmanned Aerial Vehicles

“…The promise of relatively low costs, together with highly reliable and effective assets that are not subject to the physical, psychological, or training constraints of human pilots, has led to much research effort across the world [4][5][6][7][8][9][10]. In this section, we give a brief overview of existing work related to UAV data visualization software, as well as of design patterns as software development artifacts.…”