Evaluating Communication Architectures

1. CACTUS Communication Scenario Manager: Evaluating Communication Architectures Jan de Jongh, TNO Telecom, J.F.C.M.DeJongh@FEL.TNO.NL, http://www.telecom.tno.nl • Context • Novel communication paradigms: • ad hoc networks; • 3G-cellular networks; • WLAN-hotspot networks; • meshed networks; • hybrid (4G) networks. • Technical and economical trade-offs. • Features • General: • suite of extensible Java software tools for scenario management; • several example scenarios. • Graphical Core: • user-defined finite-state symbols; • bitmaps from file; • event processor. • Mobility Models: • Random Waypoint; • Reference-Point Group Mobility; • Ornstein-Uhlenbeck; • Wiener; • Gauss-Markov; • … • Link-Availability Models: • distance based; • micro-cellular models. • Traffic Models: • message inter-arrival time; • message length; • message type; • several stochastic models available. • Information Storage and Retrieval: • information sources and sinks; • caching, replication, synchronization; • performance measurement: • information timeliness; • information accuracy; • information completeness. • Objectives • Gain insight into the communication aspects of a mobile information and/or entertainment system. • Study feasibility of and trade-offs in using/deploying a communication infrastructure. • Study feasibility of and trade-offs in the information architecture: • locations of databases; • caching, replication, synchronization; • information timeliness, accuracy, and completeness. • Do not study these trade-offs in isolation, but stay in the problem domain. J. de Jongh v02 20030821 • Applications • CACTUS: a scenario of tourists visiting a city and exchanging multimedia content (more info at Delft University stand!). • Traffic and Control • Military