26 research outputs found
AIS for Misbehavior Detection in Wireless Sensor Networks: Performance and Design Principles
A sensor network is a collection of wireless devices that are able to monitor
physical or environmental conditions. These devices (nodes) are expected to
operate autonomously, be battery powered and have very limited computational
capabilities. This makes the task of protecting a sensor network against
misbehavior or possible malfunction a challenging problem. In this document we
discuss performance of Artificial immune systems (AIS) when used as the
mechanism for detecting misbehavior.
We show that (i) mechanism of the AIS have to be carefully applied in order
to avoid security weaknesses, (ii) the choice of genes and their interaction
have a profound influence on the performance of the AIS, (iii) randomly created
detectors do not comply with limitations imposed by communications protocols
and (iv) the data traffic pattern seems not to impact significantly the overall
performance.
We identified a specific MAC layer based gene that showed to be especially
useful for detection; genes measure a network's performance from a node's
viewpoint. Furthermore, we identified an interesting complementarity property
of genes; this property exploits the local nature of sensor networks and moves
the burden of excessive communication from normally behaving nodes to
misbehaving nodes. These results have a direct impact on the design of AIS for
sensor networks and on engineering of sensor networks.Comment: 16 pages, 20 figures, a full version of our IEEE CEC 2007 pape
Scheduling of offshore wind farm installation using simulated annealing
This paper focuses on the scheduling problem in the offshore wind farm installation process, which is strongly influenced by the offshore weather condition. Due to the nature of the offshore weather condition, i.e., partially predictable and uncontrollable, it is urgent to find a way to schedule the offshore installation process effectively and economically. For this purpose, this work presents a model based on Timed Petri Nets (TPN) approach for the offshore installation process and applies simulated annealing algorithm to find the optimal schedule
Artificial immune systems: Survey and applications in ad hoc wireless networks
artificial immune system. This document reviews recent efforts in the area of Artificial immune systems (AIS) and their applications for (ad hoc) wireless networks. It presents basic mechanism of Human immune systems, introduces the reader to the learning paradigms of AIS, sums up misbehavior in ad hoc wireless networks and discusses pros and cons of AIS in increasing robustness of ad hoc wireless networks against misbehavior
Is AIS Based Misbehavior Detection Suitable for Wireless Sensor Networks
Abstract — Sensor networks are a flavor of ad hoc wireless networks with limited computational capabilities. The task to protect such networks against misbehavior is therefore more complicated as any detection mechanism has to be simple and efficient. We employed mechanisms based on Artificial immune systems (AIS) in order to detect misbehavior. We conclude that AIS based misbehavior detection offers a decent detection performance at a very low computational cost. We show that misbehavior detection when applied at both the MAC and network layers may still not be sufficient, instead it will be necessary to extend it to layers with end-to-end connection information; this would also allow for classifying misbehavior by its potential to cause harm. These results have a direct impact on the design of AIS for sensor networks and on engineering of sensor networks. I