Characterization of a Mobile Urban Radio Channel with an Improved Multicarrier Sounding Technique

Authors

  • L. H. Gonsioroski
  • L. da Silva MelloL. da Silva Mello
  • C. R. Ron
  • L. J. Matos

Keywords:

Broadband sounding, channel characterization and radio propagation

Abstract

This paper presents results of temporal dispersion characteristics of a broadband channel measured at 2.5 GHz in a dense urban environment. The cumulative distributions of the number of multipath components and the rms delay spread were
obtained, as well as the mean value and the standard deviation of the rms delay spread. A new sounding technique was employed that combines characteristics of the multicarrier sounding and pulse compression sounding techniques by using a pseudo-noise (PN) sequence as input to a multicarrier OFDM modulator. It was found that it provides improvement over the traditional multicarrier sounding technique by allowing better synchronization of the received signal and the capture of a higher number of multipath components.

References

[1] Parsons, J. D., D. A. Demery and A. M. D. Turkmanil, “Sounding techniques for wideband mobile radio channels: a
review”, IEE Processing communication, speech and vision, Vol. 138, No. 5, 437-446, 1991.
[2] Rappaport, T. S., “Characterization of UHF Radio Channels in Factory Buildings”, IEEE Transactions on Antennas and
Propagation, vol. 37, pp. 1058-1069, 1989.
[3] D. Cox, “Delay Doppler characteristics of multipath propagation at 910 MHz in a suburban mobile radio environment”,
IEEE Transactions on Antennas and Propagation, vol. 20, no. 5, pp. 625-635, Jan. 1972.
[4] Silva R. M. L., Siqueira G. L., Gonsioroski L. H., Ron C. R. V., “Comparison between OFDM and STDCC mobile
channel sounders at 3.5 GHz”, Journal of Microwaves, Optoelectronics and Electromagnetic Applications, Vol. 12, No.
1, 2013
[5] Acosta-Marum, Guillermo, “Measurements, Modeling, and OFDM Synchronization for the Wideband Mobile-toMobile Channel”, PhD Thesis, Georgia Institute of Technology, 2007.
[6] Propagation data and prediction methods for the planning of short-range outdoor radiocommunication systems and
radio local area networks in the frequency range 300 MHz to 100 GHz, Recommendation ITU-R P.1411-6, 2012.
[7] L. Wei and C. Schlegel, “Synchronization requirements for multi-user OFDM on satellite mobile and two-path
Rayleigh fading channels”, IEEE Trans. Commun., vol. 43, pp. 887–895, 1995.
[8] J. A. C. Bingham, “Multicarrier modulation for data transmission: An idea whose time has come”, IEEE Commun.
Mag., vol. 28, no. 5, pp. 5–14, 1990.
[9] T. Pollet and M. Moeneclaey, “Synchronizability of OFDM signals”, in Proc. Globecom’95, Singapore, vol. 3, pp.
2054–2058, Nov. 1995.
[10] T. Pollet, M. van Bladel, and M. Moeneclaey, “BER sensitivity of OFDM systems to carrier frequency offset and
Wiener phase noise”, IEEE Trans. Commun., vol. 43, pp. 191–193, 1995.
[11] T. Lv, H. Li, “Joint estimation of symbol timing and carrier frequency offset of OFDM signals over fast time-varying
multipath channels”, IEEE Trans. Signal Process., vol. 53, no. 12, pp. 4526-4535, 2005.
[12] Van de Beek, J.J., M. Sandell, P.O. Borjesson, "ML estimation of time and frequency offset in OFDM systems", IEEE
Transactions on Signal Processing, vol. 45, no. 7, July 1997.
[13] Schmidl, T.,, D. Cox, "Robust frequency and timing synchronization for OFDM", IEEE Transactions on
Communications, vol. 45, no. 12, pp. 1613-1621, Dec. 1997.
[14] Minn, H., Zeng, M., e Bhargava, V. K., “On timing offset estimation for OFDM systems”, IEEE Commun. Lett., vol. 4,
pp. 242–244, 2000 .
[15] PARK, B., CHEON, H., KANG, C., e HONG, D., “A Novel Timing Estimation Method for OFDM Systems”, IEEE
Commun. Lett. Vol.7, pp.239-241, 2003.
[16] Elvino S. Sousa, V. M. Jovanovié, C. Daigneault, “Delay Spread Measurements for the Digital Cellular Channel in
Toronto”, IEEE Trans. on Vehicular Technology, Vol.43, No.4, pp.837-847, 1999.
[17] A. Algans, K. I. Pedersen, P. E. Mogensen, "Experimental analysis of the joint statistical properties of azimuth spread,
delay spread, and shadow fading", IEEE Journal on Selected Areas in Communications, V.20, p.523-531, 2006.
[18] X. Zhao, J. Kivinen, P.Vainikainen, K. Skog, "Propagation Characteristics for Wideband Outdoor Mobile
Communications at 5.3 GHz", IEEE Journal on Selected Areas in Communications, V.20, April 2002, p.507-514.

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Published

2015-08-01

How to Cite

L. H. Gonsioroski, L. da Silva MelloL. da Silva Mello, C. R. Ron, & L. J. Matos. (2015). Characterization of a Mobile Urban Radio Channel with an Improved Multicarrier Sounding Technique. Journal of Microwaves, Optoelectronics and Electromagnetic Applications (JMOe), 14, SI-158 SI. Retrieved from http://www.jmoe.org/index.php/jmoe/article/view/501