Title :
WLL systems coverage prediction
Author :
García, Nelson A Pérez ; da Silva Mello, Luiz A R ; Michaelis, J.S.
Author_Institution :
CETUC-PUC/Rio, Rio de Janeiro, Brazil
Abstract :
The increasing demand for voice and data communications, with a practically unpredictable growth in the number of potential users, leads to a continuous search of alternatives to implement system access. One of such alternatives is the use of Wireless Local Loop (WLL) systems. In this paper, coverage distance obtained for some WLL systems, using standard propagation models and considering different environments, are compared. Additionally, considering the use of WLL systems for fixed wireless access, the influence of the subscriber unit antenna directivity in the coverage distance is also analyzed
Keywords :
UHF radio propagation; code division multiple access; cordless telephone systems; losses; radio access networks; CDMA2000 system; DECT systems; W-CDMA systems; WLL systems coverage prediction; coverage distance; fixed wireless access; propagation environments; propagation loss; propagation models; subscriber unit antenna directivity; wireless local loop systems; Antennas and propagation; Cyclic redundancy check; Data communication; Environmental economics; Europe; Investments; Multiaccess communication; Quadrature phase shift keying; Radio spectrum management; Telephony;
Conference_Titel :
Microwave and Optoelectronics Conference, 1999. SBMO/IEEE MTT-S, APS and LEOS - IMOC '99. International
Conference_Location :
Rio de Janeiro
Print_ISBN :
0-7803-5807-4
DOI :
10.1109/IMOC.1999.866268
