International Journal of Vehicular Technology 
Volume 2008 (2008), Article ID 721386, 6 pages
doi:10.1155/2008/721386
Research Article

A Deterministic Simulation Model for Sojourn Time in Urban Cells with Square Street Geometry

Georgios S. Paschos,1 Ioannis G. Tsoulos,2 Efstathios D. Vagenas,3 Stavros A. Kotsopoulos,3 and George K. Karagiannidis4

 1National Research Center, VTT, P.O. Box 1000, Vuoremiehentie 5, 02150 Espoo, Finland
2Department of Computer Science, University of Ioannina, P.O. Box 1186, 45110 Ioannina , Greece
3Wireless Telecommunications Laboratory, Department of Electrical and Computer Engineering, University of Patras, 26500 Kato Kastritsi, Greece
4Division of Telecommunications, Department of Electrical and Computer Engineering, Aristotle University of Thessaloniki, Serres, 54124 Veria, Greece
Received 25 May 2007; Revised 31 January 2008; Accepted 8 April 2008

Recommended by Chung-Ju Chang

Abstract

A deterministic simulation model for the calculation of sojourn time statistics is proposed. The model is designed for urban cells taking into account city movement in street pattern, traffic lights, and crossings. Sojourn time and remaining sojourn time are assumed to be random variables that follow a gamma distribution. The parameters of gamma are found for a range of the chosen cell parameters (road length, probability of stopping at a crossing and cell radius) using Monte Carlo simulation. Then, the values are fitted to the empirical model using genetic algorithms with grammatical evolution. The model can be used to calculate sojourn time statistical parameters for any urban circular cell with square street pattern.