Radio wave propagation in curved rectangular tunnels at 5.8 GHz for metro applications, simulations and measurements

• Published in: EURASIP journal on wireless communications and networking Vol. 2011; no. 1; pp. 1 - 8
• Main Authors: Masson, Emilie, Cocheril, Yann, Combeau, Pierre, Aveneau, Lilian, Berbineau, Marion, Vauzelle, Rodolphe, Fayt, Etienne
• Format: Journal Article
• Language: English
• Published: Cham Springer International Publishing 15.12.2011; Springer Nature B.V; BioMed Central Ltd; SpringerOpen
• Subjects: Communications Engineering; Cross sections; Curved; Electromagnetism; Engineering; Engineering Sciences; Fading; Information Systems Applications (incl.Internet); Metropolitan area networks; Metros; Networks; Radio waves; Signal,Image and Speech Processing; Tunnels (transportation); Wave propagation; Wireless communication; curved tunnels; ray launching; wave propagation; metro applications; arch-shaped tunnels
• ISSN: 1687-1499; 1687-1472; 1687-1499
• DOI: 10.1186/1687-1499-2011-202

Nowadays, the need for wireless communication systems is increasing in transport domain. These systems have to be operational in every type of environment and particularly tunnels for metro applications. These ones can have rectangular, circular or arch-shaped cross section. Furthermore, they can be straight or curved. This article presents a new method to model the radio wave propagation in straight tunnels with an arch-shaped cross section and in curved tunnels with a rectangular cross section. The method is based on a Ray Launching technique combining the computation of intersection with curved surfaces, an original optimization of paths, a reception sphere, an IMR technique and a last criterion of paths validity. Results obtained with our method are confronted to results of literature in a straight arch-shaped tunnel. Then, comparisons with measurements at 5.8 GHz are performed in a curved rectangular tunnel. Finally, a statistical analysis of fast fading is performed on these results.