Journal of Tashkent Institute of Railway Engineers


The high demand for mobile services observed in recent years poses a challenge for telecom operators to expand service areas not only in populated areas, but also in places with a specific architecture and terrain. These places include car tunnels. In this article, the authors discuss some issues of mobile communications in long car tunnels. The requirements for the characteristics of a mobile communication channel and some expressions for calculating signal levels inside rectangular tunnels are considered.

First Page


Last Page



1. Zhi Sun, Ian F. Akyildiz. Influences of Vehicles on Signal Propagation in Road Tunnels. // IEEE ICC Proceedings, 2010, PP.208-214.

2. J.S. Lamminmaki, J.J.A. Lempianinen. Radio propagation characteristics in curved tunnels. //IEE Proc.-Microw. Antennas and Propag., Vol. 145, No. 4, August, 1998, PP. 327-331.

3. Ph. Mariage, M. Lienard, and P. Degauque, Member, IEEE. Theoretical and Experimental Approach of the Propagation of High Frequency Waves in Road Tunnels. //IEEE Transactions on Antennas and Propagation, vol. 42, No.1, JANUARY, 1994, PP.5-81.

4. Y. Yamaguchi, T. Abe and T. Sekiguchi, Radio wave propagation loss in the VHF to microwave region due to vehicle in tunnel. // IEEE Trans. on Electromagn. Compat., Vol. EMC 31, No. 1, Feb. 1989.PP. 87-91,

5. S.F. Mahmoud and J.R. Wait. Guided electromagnetic waves in a curved rectangular mine tunnel. //Radio Sci., Vol. 9, No. 5. 1974. PP. 567-572,

6. J.Chiba and K. Sugiyama. Effects of trains on cutoff frequency and field in rectangular tunnels as waveguide. //IEEE Trans. Microwave Theory Tech., vol. 30, No.

5,1982. PP. 757-759.

7. Donald G. Dudley. Wireless Propagation in Circular Tunnels //IEEE Trans. Antennas and Propagat., vol. 53, No.1, 2005. PP. 435-441.

8. Shahobiddinov A.Sh., Likoncev D.N., Cjunjak A.V. Raschet velichiny oslablenija signala v avtodorozhnom tunnele prjamougol'noj formy //Vestnik TUIT. -2009. -№2. -S.65-66.

9. Vol'man V.I., Pimenov Ju.V. Tehnicheskaja jelektrodinamika. – M.: Svjaz', 2002.

10. During D. Theory of multipath shape factors for small-scale fading wireless channels //IEEE Trans. Ant. Propag. - 2000. - V. 48. -№ 5. - P.682-693.



To view the content in your browser, please download Adobe Reader or, alternately,
you may Download the file to your hard drive.

NOTE: The latest versions of Adobe Reader do not support viewing PDF files within Firefox on Mac OS and if you are using a modern (Intel) Mac, there is no official plugin for viewing PDF files within the browser window.