Title :
A generalised site shielding procedure for radio system planning at microwave frequencies
Author_Institution :
Dept. of Electron. & Inf. Technol, Univ. of Glamorgan, Pontypridd, UK
Abstract :
The author begins by discussing the requirements for a generalized site shielding procedure. The results of detailed studies into the propagation modes and factors affecting the relative levels of wanted and unwanted signals received in the shadow of an obstacle are presented. Prediction models for diffraction, reflection and scatter from buildings are presented. These can be applied to determine the site shielding factor (SSF) obtained from a building and the limitation on the SSF caused by lateral contributions, expected in urban radio path geometries. In addition the effects of vegetation media which may be present in urban areas can also be quantified
Keywords :
electromagnetic shielding; electromagnetic wave diffraction; electromagnetic wave reflection; electromagnetic wave scattering; microwave links; microwave propagation; millimetre wave propagation; telecommunication network planning; 9.6 to 57.6 GHz; buildings; diffraction; generalised site shielding procedure; microwave frequencies; prediction models; propagation modes; radio system planning; reflection; scatter; shadow; site shielding factor; urban radio path geometries; vegetation media; Buildings; Costs; Diffraction; Geometry; Information technology; Interchannel interference; Microwave frequencies; Scattering; Technology planning; Vegetation;
Conference_Titel :
Radio Science Conference, 1998. NRSC '98. Proceedings of the Fifteenth National
Conference_Location :
Cairo
Print_ISBN :
0-7803-5121-5
DOI :
10.1109/NRSC.1998.711445
