Analysis of Radio Interference through Ducting for 2.5 GHz WiMAX Service

Son, Ho-Kyung; Kim, Jong-Ho; Kim, Che-Young

doi:2012.12.1.94

J. Electromagn. Eng. Sci > Volume 12(1); 2012 > Article

Journal of the Korean Institute of Electromagnetic and Science 2012;12(1):94-100.
DOI: https://doi.org/10.5515/JKIEES.2012.12.1.94

Analysis of Radio Interference through Ducting for 2.5 GHz WiMAX Service

Ho-Kyung Son¹, Jong-Ho Kim¹, Che-Young Kim²

¹Radio Technology Research Department, Electronics and Telecommunications Research Institute
²School of Electrical Engineering and Computer Science, Kyungpook National University

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.

Key words: WiMAX, Ducting, Interference Analysis, Minimum Coupling Loss (MCL), Advanced Propagation Model (APM)