University of Delaware - College of Engineering
ELECTRICAL & COMPUTER ENGINEERING

Research

Computer Systems

Propagation and Mobility Modeling for Urban Mesh Networks

Stephan Bohacek

While many cities are deploying or planning to deploy large-scale mesh networks, there has been relatively little research focused on these networks. One reason for this lack of research is that there have been no simulation tools/ The UDelModels is a set of tools for realistic simulation of urban mesh networks. The propagation models are based on ray-tracing and include reflections off of walls and the ground, transmission through walls, and diffraction around the corners of buildings and over the top of buildings. The mobility models are based on a data from a number of research areas. For example, surveys performed by the US Department of Labor are used to model the times people arrive at work, go to lunch, take breaks, etc. Studies from the business research community are used to model how people move inside office buildings. Data from various city and state governments is used to model the density of vehicle traffic at various times of day. The mobility models can also model evacuation of cities.

Recent publications

Vinay Sridhara, Jonghyun Kim and Stephan Bohacek, "Models and Methodologies for Simulating Mobile Ad-Hoc Networks," Proceedings of the 3-rd IEEE MobiWac, 2005

Vinay Sridhara, Hwee-Chul Shin and Stephan Bohacek, "Observations and Models of Time-Varying Channel Gain in Crowded Areas," The Second International Workshop On Wireless Network Measurement, 2006

Vinay Sridhara and Stephan Bohacek, "Realistic Simulation of Propagation for Mesh Networks," Submitted to COMNETS, 2005


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