Die Dozenten der Informatik-Institute der Technischen Universität Braunschweig laden im Rahmen des Informatik-Kolloquiums zu folgendem Vortrag ein.

Ahmad Dehwah, PhD Candidate in the Electrical Engineering at King Abdullah University of Science and Technology: Energy Aware Routing Schemes in Solar Powered Wireless Sensor Networks for Flash Flood and Traffic Monitoring Applications

Beginn: 10.11.2015, 16:30 Uhr Ort: TU Braunschweig, Informatikzentrum, Mühlenpfordtstraße 23, 1. OG, Hörsaal M 161 Webseite: http://www.ibr.cs.tu-bs.de/cal/kolloq/2015-11-10-dehwah.html Kontakt: Prof. Dr.-Ing. Lars Wolf

Wireless sensor networks have enabled the existence of many accurate and inexpensive monitoring systems that could help in saving people lives as well as monitoring the environment. Nevertheless, having a long term operational network is associated with multiple challenges especially for critical and emergency applications. Our focus is on real-time traffic monitoring and flash flood detection system using solar powered wireless sensor networks. As a real-time application, system reliability and energy management is critical to ensure the system operation thus, we consider data routing policies in order to optimize the energy. Motivated by multi-purpose sensor networks, the objective is to find the best network policy that maximizes the minimal energy among nodes in a sensor network, over a finite time horizon, given uncertain energy input forecasts. We first show the derivation of the Mixed Integer Linear Programming (MILP) counterpart for solving the problem in a centralized manner. Then we drive the optimal policy that maximizes our specific problem over some time horizon using forward dynamic programming. Finally, we present a derivation for the proposed greedy policy that is distributed, and exhibits significantly lower complexity with a computational time that outperforms both aforementioned approaches along with the experimental validation.