Title :
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
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;
Conference_Titel :
Radio and Wireless Conference, 1999. RAWCON 99. 1999 IEEE
Conference_Location :
Denver, CO
Print_ISBN :
0-7803-5454-0
DOI :
10.1109/RAWCON.1999.810919
