ISEP | Auditório CISTER
11 DEZ 2012 | 12:15
O Centro de Investigação em Sistemas Confiáveis e de Tempo-Real (CISTER) recebe Jens Schmitt para a sessão dupla dos CISTER Distinguished Seminar Series. O professor da Universidade de Kaiserslautern (Alemanha) vem ao Porto apresentar a comunicação “Design Problems in Large-Scale, Time-Sensitive Wireless Sensor Networks”.
DESIGN PROBLEMS IN LARGE-SCALE, TIME-SENSITIVE WIRELESS SENSOR NETWORKS
In this talk, I will first present a high-level view of the (sensor) network calculus and the current state-of-the art in this active research area. The focus will then be on using the system equations from this mathematical framework to address network design problems in wireless sensor networks. In particular, some results on node and sink placement will be discussed as well as the more sophisticated problem of planning the trajectories of multiple mobile sinks will be presented. In all these cases the concurrent objectives of maximizing lifetime of the network and minimizing information transfer delay are traded off against each other in one or the other way resulting into hard computational problems even under typical design time abstractions. As we further aim at large-scale WSNs, most of the time heuristic approaches become necessary. Rationales and intuitions of these heuristics are discussed throughout the talk.
PROF. DR.-ING. JENS B. SCHMITT
University of Kaiserslautern, Germany
Professor for Computer Science at the TU Kaiserslautern. Since 2003 he has been the head of the Distributed Computer Systems Lab (disco). His research interests are broadly in performance and security aspects of networked and distributed systems. Currently, his main interest in performance is in the development of the network calculus, both deterministic and stochastic. In security, his focus is on wireless networks and leveraging from physical characteristics of radio transmissions. He received his PhD from TU Darmstadt in 2000 on the topic "Heterogeneous Network Quality of Service Architectures".