Spectrum efficiency of microcellular systems

Author

Prasad, Ramjee ; Kegel, Adriaan

Author_Institution

Delft Univ. of Technol., Netherlands

fYear

1991

fDate

19-22 May 1991

Firstpage

357

Lastpage

361

Abstract

A description is given of microcellular mobile radio systems having a Rician faded desired signal, uncorrelated Rayleigh-faded cochannel interferers, and UHF ground-wave path loss characteristics dependent on the location of the turning point which causes two different values of path loss slope. Cochannel interference probability is evaluated as a function of reuse distance, with carried traffic, protection ratio, and turning point as parameters using the Erlang-B formula. The radio spectrum efficiency is analyzed in terms of cochannel interference probability. Contrary to macrocells, the spectrum efficiency of a microcell for practical values of the interference probability (⩽0.1) increases with increases in carried traffic, i.e., blocking probability. As expected, the microcells offer higher spectrum efficiency than macrocells for a specific value of cochannel interference probability

Keywords

cellular radio; fading; probability; radiofrequency interference; telecommunication channels; Erlang-B formula; Rayleigh-faded cochannel interferers; Rician faded desired signal; UHF ground-wave path loss; blocking probability; carried traffic; cochannel interference probability; microcellular mobile radio systems; protection ratio; radio spectrum efficiency; reuse distance; turning point; Antennas and propagation; Attenuation; Interchannel interference; Land mobile radio; Macrocell networks; Mathematical model; Microcell networks; Rician channels; Traffic control; Turning;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 1991. Gateway to the Future Technology in Motion., 41st IEEE

Conference_Location

St. Louis, MO

ISSN

1090-3038

Print_ISBN

0-87942-582-2

Type

conf

DOI

10.1109/VETEC.1991.140510

Filename

140510