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Analysis of Radio Interference through Ducting for 2.5 GHz WiMAX Service

  • Son, Ho-Kyung (Radio Technology Research Department, Electronics and Telecommunications Research Institute) ;
  • Kim, Jong-Ho (Radio Technology Research Department, Electronics and Telecommunications Research Institute) ;
  • Kim, Che-Young (School of Electrical Engineering and Computer Science, Kyungpook National University)
  • Received : 2011.08.25
  • Accepted : 2012.02.07
  • Published : 2012.03.31

Abstract

Radio interference has been occurring in mobile communication services on the southern seashore in Korea. Monitoring the radio interference signal revealed that the main reason for the radio interference was a radio ducting signal coming from the seaside of Japan. In this paper, we have analyzed the effect of interference on WiMAX service using a 2.5 GHz frequency band between Korea and Japan. We focus on the interference scenario from base station to base station and we use the Minimum Coupling Loss (MCL) method for interference analysis and the Advanced Propagation Model (APM) for calculating the propagation loss in ducts. The propagation model is also compared with experimental measurement data. We confirm that the interfering signal strength depends on the antenna height and this result can be applied to deployment planning for each system with an interference impact acceptable to both parties.

Keywords

References

  1. H. S. Lee, "An analysis of radio interference in 800 MHz band between Korea and Japan," The Journal of Korea Information and Communication Society, vol. 8, no. 23, pp. 1952-1962, 1998.
  2. N. H. Jeong, "The analysis of radio interference between Korea and China/Japan using split-step DMFT algorithm," The Journal of Korea Institute of Electromagnetic Engineering and Science, vol. 2, no. 13, pp. 196-207, 2002.
  3. P. Gerstoft, D. F. Gingras, L. T. Rogers, and W. S. Hodgkiss, "Estimation of radio refractivity structure using matched-field array processing," IEEE Trans. Antennas Propagation, vol. 48, no. 3, Mar. 2000.
  4. Recommendation ITU-R SM. 337-6, "Frequency and distance separations," Oct. 2008.
  5. CEPT Report 30, "The identification of common and minimal technical conditions for 790-862 MHz for the digital dividend in the European Union," Oct. 2009
  6. Herbert V. Hitney, "Hybrid ray optics and parabolic equation methods for radar propagation modeling," IEE International Conference Radar 92, Oct. 1992.
  7. Mireille Levy, "Parabolic equation methods for electromagnetic wave propagation," 2000.
  8. G. Daniel Dockery, "Modeling electromagnetic wave propagation in the troposphere using the parabolic equation," IEEE Trans. on Antennas & Propagation, vol. 36, no. 10, Oct. 1988.
  9. H. K. Son, "The prediction of radio interference through ducting and proposal measures for protecting interference," Proc. Vehicular Technology Conference, vol. 1, pp. 502-506, 2002.