Analytical evaluation of blocking probability in a mobile radio system with directed retry

Author

Verdone, Roberto ; Zanella, Alberto

Author_Institution

CSITE-CNR, Bologna Univ., Italy

Volume

19

Issue

2

fYear

2001

fDate

2/1/2001 12:00:00 AM

Firstpage

322

Lastpage

331

Abstract

The blocking probability in a cellular network implementing directed retry (DR) is analyzed as a function of the main characteristics of the scenario (the density of base stations), the propagation model (path loss and shadowing), and the speed of mobiles. The analytical approach allows the evaluation of the blocking probability as a function of the maximum number of cells that can be considered at call setup by the DR algorithm. It is shown that the effectiveness of the DR strategy depends on the values of the variance of shadowing and the path loss model. Moreover, the blocking probability is found to be approximately independent from the mobile speed. The analytical results are compared to those obtained by means of simulation: a good agreement has been found, and the analytical model has been shown to be able to reflect the main effects of propagation and mobility on the advantages of DR in a real cellular network

Keywords

cellular radio; fading channels; losses; probability; radio networks; radiowave propagation; telecommunication traffic; Poisson process; base stations density; blocking probability; call setup; cellular network; directed retry algorithm; mobile radio system; mobile speed; path loss model; propagation model; shadowing; simulation; teletraffic; Algorithm design and analysis; Analytical models; Base stations; Fluctuations; Intelligent networks; Land mobile radio; Land mobile radio cellular systems; Propagation losses; Shadow mapping; Telecommunication traffic;

fLanguage

English

Journal_Title

Selected Areas in Communications, IEEE Journal on

Publisher

ieee

ISSN

0733-8716

Type

jour

DOI

10.1109/49.914510

Filename

914510