Measurement and Analysis of Extra Propagation Loss of Tunnel Curve

Wave propagation experiences extra loss in curved tunnels, which is highly desired for network planning. Extensive narrow-band propagation measurements are made in two types of Madrid subway tunnels (different cross sections and curvatures) with various configurations (different frequencies and polarizations). A ray tracer validated by the straight and curved parts of the measuring tunnels is employed to simulate the reference received signal power by assuming the curved tunnel to be straight. By subtracting the measured received power in the curved tunnels from the simulated reference power, the extra loss resulting from the tunnel curve is extracted. Finally, this paper presents the figures and tables quantitatively reflecting the correlations between the extra loss and radius of curvature, frequency, polarization, and cross section, respectively. The results are valuable for statistical modeling and the involvement of the extra loss in the design and network planning of communication systems in subway tunnels.

[1]  Gorazd Kandus,et al.  Four-slope channel model for path loss prediction in tunnels at 400 MHz , 2010 .

[2]  Thomas Zwick,et al.  A novel ray-optical approach to model wave propagation in curved tunnels , 1999, Gateway to 21st Century Communications Village. VTC 1999-Fall. IEEE VTS 50th Vehicular Technology Conference (Cat. No.99CH36324).

[3]  S. Mahmoud,et al.  On modal propagation of high frequency electromagnetic waves in straight and curved tunnels , 2004, IEEE Antennas and Propagation Society Symposium, 2004..

[4]  Gorazd Kandus,et al.  Adjacent channel interference analyses in TETRA direct mode operation , 2008 .

[5]  Yue Ming,et al.  Robust regional bounding spherical descriptor for 3D face recognition and emotion analysis , 2015, Image Vis. Comput..

[6]  Ke Guan,et al.  Modeling of the Division Point of Different Propagation Mechanisms in the Near-Region Within Arched Tunnels , 2013, Wirel. Pers. Commun..

[7]  Bo Ai,et al.  Complete Propagation Model Structure Inside Tunnels , 2013 .

[8]  David G. Michelson,et al.  Effect of antenna array properties on multiple-input-multiple-output system performance in an underground mine , 2013 .

[9]  Gorazd Kandus,et al.  A Survey of Radio Propagation Modeling for Tunnels , 2014, IEEE Communications Surveys & Tutorials.

[10]  Te-Shun Wang,et al.  Simulations and measurements of wave propagations in curved road tunnels for signals from GSM base stations , 2003, IEEE Antennas and Propagation Society International Symposium. Digest. Held in conjunction with: USNC/CNC/URSI North American Radio Sci. Meeting (Cat. No.03CH37450).

[11]  Bo Ai,et al.  Complete Propagation Model in Tunnels , 2013, IEEE Antennas and Wireless Propagation Letters.

[12]  Xiang Cheng,et al.  Challenges Toward Wireless Communications for High-Speed Railway , 2014, IEEE Transactions on Intelligent Transportation Systems.

[13]  Ke Guan,et al.  Propagation mechanism modelling in the near region of circular tunnels , 2012 .

[14]  Qiuqi Ruan,et al.  Robust sparse bounding sphere for 3D face recognition , 2012, Image Vis. Comput..

[15]  M. Lienard,et al.  Theoretical and experimental approach of the propagation at 2.5 GHz and 10 GHz in straight and curved tunnels , 1999, Gateway to 21st Century Communications Village. VTC 1999-Fall. IEEE VTS 50th Vehicular Technology Conference (Cat. No.99CH36324).

[16]  Bo Ai,et al.  Assessment of LTE-R Using High Speed Railway Channel Model , 2011, 2011 Third International Conference on Communications and Mobile Computing.

[17]  Ke Guan,et al.  Measurement of Distributed Antenna Systems at 2.4 GHz in a Realistic Subway Tunnel Environment , 2012, IEEE Transactions on Vehicular Technology.

[18]  Gorazd Kandus,et al.  Path Loss Analyses in Tunnels and Underground Corridors , .

[19]  Bei Zhang,et al.  Shadow fading cross-correlation of multi-frequencies in curved subway tunnels , 2014, 17th International IEEE Conference on Intelligent Transportation Systems (ITSC).

[20]  Andrej Hrovat,et al.  Analysis of Radio Propagation Models for Smart City Applications , 2014 .

[21]  D. Caratelli,et al.  A Numerical Scheme for the Solution of the Vector Parabolic Equation Governing the Radio Wave Propagation in Straight and Curved Rectangular Tunnels , 2009, IEEE Transactions on Antennas and Propagation.

[22]  Yue Ming,et al.  Hand fine-motion recognition based on 3D Mesh MoSIFT feature descriptor , 2015, Neurocomputing.

[23]  Costas D. Sarris,et al.  Ray-tracing based modeling of ultra-wideband pulse propagation in railway tunnels , 2011, 2011 IEEE International Symposium on Antennas and Propagation (APSURSI).

[24]  Leandro Juan-Llacer,et al.  Analysis of path loss and delay spread at 900 MHz and 2.1 GHz while entering tunnels , 2001, IEEE Trans. Veh. Technol..

[25]  B. Ai,et al.  FIVE-ZONE PROPAGATION MODEL FOR LARGE-SIZE VEHICLES INSIDE TUNNELS , 2013 .

[26]  P. Degauque,et al.  Wireless propagation in tunnels , 2007, IEEE Antennas and Propagation Magazine.

[27]  Y. P. Zhang,et al.  Characterization of UHF radio propagation channels in tunnel environments for microcellular and personal communications , 1998 .

[28]  Zhang Chuanlei,et al.  Analysis of transmission characteristics of curved tunnel with arbitrary cross section using hybrid mode matching/finite elements approach , 2005, IEEE International Symposium on Communications and Information Technology, 2005. ISCIT 2005..

[29]  Sima Noghanian,et al.  A Survey of Wireless Communications and Propagation Modeling in Underground Mines , 2013, IEEE Communications Surveys & Tutorials.

[30]  Cesar Briso-Rodríguez,et al.  Measurements and Modeling of Distributed Antenna Systems in Railway Tunnels , 2007, IEEE Transactions on Vehicular Technology.

[31]  Marion Berbineau,et al.  Radio wave propagation in curved rectangular tunnels at 5.8 GHz for metro applications , 2011 .

[32]  Ramakrishna Janaswamy,et al.  Modeling Radio Transmission Loss in Curved, Branched and Rough-Walled Tunnels With the ADI-PE Method , 2010, IEEE Transactions on Antennas and Propagation.

[33]  Tao Tang,et al.  Measurements and Analysis of Large-Scale Fading Characteristics in Curved Subway Tunnels at 920 MHz, 2400 MHz, and 5705 MHz , 2015, IEEE Transactions on Intelligent Transportation Systems.

[34]  P. C. Ching,et al.  Characterization of UHF radio propagation channel in curved tunnels , 1996, Proceedings of PIMRC '96 - 7th International Symposium on Personal, Indoor, and Mobile Communications.

[35]  Xiang Cheng,et al.  Social Network Services for Rail Traffic Applications , 2014, IEEE Intelligent Systems.

[36]  Zhangdui Zhong,et al.  Propagation Mechanism Modeling in the Near-Region of Arbitrary Cross-Sectional Tunnels , 2012 .

[37]  Bo Ai,et al.  Propagation channel measurements and analysis at 2.4 GHz in subway tunnels , 2013 .

[38]  Werner Wiesbeck,et al.  Ray-density normalization for ray-optical wave propagation modeling in arbitrarily shaped tunnels , 2000 .

[39]  A. V. Popov,et al.  Modeling radio wave propagation in tunnels with a vectorial parabolic equation , 2000 .

[40]  A. G. Emslie,et al.  Theory of the propagation of UHF radio waves in coal mine tunnels , 1975 .

[41]  Shin-Hon Chen,et al.  SBR image approach for radio wave propagation in tunnels with and without traffic , 1996 .

[42]  J. S. Lamminmaki,et al.  Radio propagation characteristics in curved tunnels , 1998 .

[43]  C. Beckman,et al.  Wave propagation in curved road tunnels , 1998, IEEE Antennas and Propagation Society International Symposium. 1998 Digest. Antennas: Gateways to the Global Network. Held in conjunction with: USNC/URSI National Radio Science Meeting (Cat. No.98CH36.

[44]  W.C.Y. Lee,et al.  Estimate of local average power of a mobile radio signal , 1985, IEEE Transactions on Vehicular Technology.

[45]  Yue Ping Zhang.  Novel model for propagation loss prediction in tunnels , 2003, IEEE Trans. Veh. Technol..