Title :
Propagation in urban environments based on asymptotic methods and ray tracing techniques
Author :
Carrancio, José M ÁLvarez ; Santos, Ángel M Bravo ; Casal, Carlos Rodríguez
Author_Institution :
Dept. Teoria de la Senal y Comunicaciones i I.T., Valladolid Univ., Spain
Abstract :
A model to characterize the radio wave propagation in urban environments is presented. This model is based on asymptotic methods, such as the geometrical optics (GO) and the uniform theory of diffraction (UTD). Because of the complexity of ray tracing techniques, a geometrical modeling of buildings is necessary in order to simplify the process. Simulations are carried out along several routes within a particular urban environment at 900 MHz. Their results provide some conclusions about the influence of the environment in the radio wave propagation
Keywords :
UHF radio propagation; building; geometrical theory of diffraction; land mobile radio; multipath channels; noise; ray tracing; 900 MHz; GO; UHF; UTD; asymptotic methods; buildings; geometrical modeling; geometrical optics; mobile radio; multipath components; radiowave propagation; ray tracing techniques; receiver noise; simulations; uniform theory of diffraction; urban environments; Electromagnetic fields; Electromagnetic propagation; Electromagnetic scattering; Optical propagation; Physical theory of diffraction; Ray tracing; Receivers; Reflection; Solid modeling; Working environment noise;
Conference_Titel :
Communications, Computers and Signal Processing, 1997. 10 Years PACRIM 1987-1997 - Networking the Pacific Rim. 1997 IEEE Pacific Rim Conference on
Conference_Location :
Victoria, BC
Print_ISBN :
0-7803-3905-3
DOI :
10.1109/PACRIM.1997.619976
