Assessment of cochannel interference in fixed wireless cellular systems

Author

Farahvash, S. ; Kavehrad, M.

Author_Institution

Dept. of Electr. Eng., Pennsylvania State Univ., University Park, PA, USA

fYear

1999

fDate

1999

Firstpage

13

Lastpage

16

Abstract

In wireless cellular systems cochannel interference is the limiting factor in determining the capacity. Fixed wireless systems such as MMDS and LMDS are no exception to this rule. We analyzed the signal-to-interference ratio in a highly-overlapped cellular architecture. Through macro diversity, such a cellular architecture can provide significant diversity gains but it is vulnerable to excess cochannel interference. Analyzing the cochannel interference at the worst case point in the center of a cell shows that polarization interleaving can increase signal-to-interference ratio by several decibels

Keywords

cellular radio; channel capacity; cochannel interference; diversity reception; electromagnetic wave polarisation; fading; millimetre wave propagation; radio access networks; radio networks; rain; tropospheric electromagnetic wave propagation; LMDS; MMDS; SIR; attenuation; bandwidth; broadband local loops; channel capacity; cochannel interference; diversity gains; fixed wireless cellular systems; foliage depolarization; macro diversity; millimeter-wave frequencies; overlapped cellular architecture; polarization interleaving; radiowave propagation; rain fading; sector antenna; signal-to-interference ratio; Bandwidth; Base stations; Directive antennas; Diversity reception; Interchannel interference; Microwave frequencies; Shadow mapping; Shape; Signal analysis; Wireless cellular systems;

fLanguage

English

Publisher

ieee

Conference_Titel

Radio and Wireless Conference, 1999. RAWCON 99. 1999 IEEE

Conference_Location

Denver, CO

Print_ISBN

0-7803-5454-0

Type

conf

DOI

10.1109/RAWCON.1999.810919

Filename

810919