This document deals with techniques used to reduce the number of nullmessages in a distributed discrete{event simulation. Nullmessages are used to avoid deadlocks which can occurr when simulating physical systems (networks) consisting of one or more physical processes. In the brute{force simplest algorithm 10] the number of nullmessages is very high. Reducing the nullmessages number assures imp...

Wireless Sensor Networks (WSNs) offer inherent packet redundancy since each point within the network area is covered by more than one sensor node. This phenomenon, which is known as sensors co-coverage, is used in this paper to detect unauthenticated events. Unauthenticated event broadcasting in a WSN imposes network congestion, worsens the packet loss rate, and increases the network energy con...

Lindén, J. 2018. Synchronization Techniques in Parallel Discrete Event Simulation. Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Science and Technology 1634. 57 pp. Uppsala: Acta Universitatis Upsaliensis. ISBN 978-91-513-0241-6. Discrete event simulation is an important tool for evaluating system models in many fields of science and engineering. To improve the pe...