Title :
Indoor penetration and interference studies
Author :
De Coster, I. ; Van Lil, E. ; van de Capelle, A. ; Pérez-Fontán, F.
Author_Institution :
ESAT, Katholieke Univ., Leuven, Heverlee, Belgium
Abstract :
This paper deals with the computation of protection margins for co-channel indoor systems. Starting from classical GO/UTD (geometrical optics/uniform theory of diffraction) simulations with EPICS/G attenuation, margins are computed for low-frequency systems (433 MHz and 2.4 GHz). From those results protection margins are determined to allow estimations of the channel separations depending on the modulation techniques used. To determine this separation for classical FM and AM modulation ITU-R recommendations are used and a DS-SS (direct sequence spread spectrum) SIMULINK emulator has been written to determine the BER for a BPSK modulated radio interface
Keywords :
UHF radio propagation; amplitude modulation; code division multiple access; error statistics; frequency modulation; geometrical optics; geometrical theory of diffraction; indoor radio; phase shift keying; radiofrequency interference; spread spectrum communication; telecommunication channels; telecommunication computing; 2.4 MHz; 433 MHz; AM; BER; BPSK modulated radio interface; CDMA; DS-SS; EPICS/G attenuation margins; FM; GO/UTD simulations; ITU-R recommendations; SIMULINK emulator; channel separations; co-channel indoor systems; indoor interference studies; indoor penetration studies; low-frequency systems; modulation techniques; protection margins; Bit error rate; Computational modeling; Geometrical optics; Interference; Optical attenuators; Optical computing; Physical theory of diffraction; Protection; Solid modeling; Spread spectrum communication;
Conference_Titel :
Vehicular Technology Conference, 1999. VTC 1999 - Fall. IEEE VTS 50th
Conference_Location :
Amsterdam
Print_ISBN :
0-7803-5435-4
DOI :
10.1109/VETECF.1999.797349
