Vehicle Motion in Large and Small Cities and Teletraffic Characterization in Cellular Communication Systems

Kazuyoshi SAITOH  Hirotoshi HIDAKA  Noriteru SHINAGAWA  Takehiko KOBAYASHI  

IEICE TRANSACTIONS on Communications   Vol.E84-B   No.4   pp.805-813
Publication Date: 2001/04/01
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on Mobile Multimedia Communications)
mobile communication,  teletraffic,  mobility characterization,  cellular system,  GPS,  

Full Text: PDF(445KB)>>
Buy this Article

Understanding traffic characteristics in mobile communications is invaluable for planning, designing, and operating cellular networks, and various mobility models have therefore come to be developed to predict traffic characteristics. In this paper, cell-dwell-time distribution and transition probability in a virtual cellular system are first estimated from the results of measuring taxi motion using the Global Positioning System (GPS) for large-city and small-city ranges of motion. Then, on the basis of simulations using these estimations, traffic characteristics like handoff rate and channel blocking probability in a cellular system are evaluated. It was found that a difference between large and small cities could be observed in speed distribution and direction-of-travel probability, but only a slight difference in cell-dwell-time distribution.