01155576

Component

The connectivity of vehicular ad hoc networks (VANets) can be affected by the special distribution patterns, usually dependent and non-uniform, of vehicles in a transportation network. In this study, we introduce a new framework for computing the connectivity in a VANet for continuous distribution patterns of communication nodes on a line in a transportation network. With this model, we obtain a new closed-form solution to the connectivity when communication nodes follow homogeneous Poisson distributions and a recursive model when communication nodes follow non-homogeneous Poisson distributions. In the same framework, we derive an approximate closed-form solution to the connectivity when distribution patterns of communication nodes are given by spatial renewal processes. With the developed models, we also discussed the impacts on connectivity of road-side stations and different distribution patterns of vehicles. Given continuous traffic conditions, the connectivity model could be helpful for designing routing protocols in VANets and implementing vehicle-infrastructure integration systems.

01147878

10-1814

English

26p

2010

Transportation Research Board 89th Annual Meeting

DVD

Figures (4) ; References (35)

Advanced driver information systems; Communication systems; Mathematical models; Network analysis (Planning); Network nodes; Poisson distributions; Vehicle to vehicle communications; Vehicular ad hoc networks

Data and Information Technology; Highways

Transportation Research Board Annual Meeting 2010 Paper #10-1814

BTRIS, TRIS, TRB

Jan 25 2010 10:50AM