Browse > Article
http://dx.doi.org/10.7236/JIIBC.2018.18.2.63

A Study on Frequency Coordination between the Same or Different Wireless Systems based upon Minimum Coupling Loss  

Suh, Kyoung-Whoan (Dept. of IoT Electronics Engineering, Kangnam University)
Publication Information
The Journal of the Institute of Internet, Broadcasting and Communication / v.18, no.2, 2018 , pp. 63-72 More about this Journal
Abstract
Theoretical modelling and computational results for frequency coordination are presented based upon minimum coupling loss regarding the same or different wireless systems. Essential parameters involved in frequency coordination are discussed in view of system characteristics, propagation model, availability and protection ratio, frequency dependent rejection or adjacent channel interference ratio, discrimination angle, and its computational results are also evaluated. To illustrate frequency coordination procedure, received interference power between fixed wireless system of victim and mobile base station of interferer are analyzed in urban or sub-urban area and also compared with maximum allowable interference power as functions of discrimination angle and distance for assumed system parameters. The proposed method will play a practical role in technical analysis on co-existence or interoperability for the various wireless systems needed for frequency coordination.
Keywords
Availability; frequency coordination; minimum coupling loss; protection ratio; frequency dependent rejection;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 ETSI EN 301 669 1.2.1 2001-02, Fixed Radio Systems; Point-to-point equipment; High capacity digital radio systems carrying STM-4 in two 40 MHz channels or 2 $\times$ STM-1 in a 40 MHz channel with alternate channel arrangement, Sophia Antipolis, France, 2001.
2 ITU, Rec. ITU-R P.452, "Prediction procedure for the evaluation of microwave interference between stations on the surface of the Earth at frequencies above about 0.7 GHz", Switzerland, 2015.
3 ITU, Rec. ITU-R F.1336, "Reference radiation patterns of omnidirectional, sectoral and other antennas for the fixed and mobile services for use in sharing studies in the frequency range from 400 MHz to about 70 GHz", Switzerland, 2014.
4 ITU, Radiocommunication sector (ITU-R), http://www.itu.int/itu-r.
5 A study on analysis methodology of multi-interferences under dynamic warfare environment, Research Report, ADD, Dec. 2012.
6 K.W. Suh and J.H. Lee, "Experimental analysis of frequency reallocation to FM broadcasting link system for effective use in 900 MHz band," Journal of Broadcast Engineering, Vol. 15, No. 1, pp.99-111, 2010.   DOI
7 K.W. Suh, A study on multi-site radar operations based on LFM signal, The Journal of the Institute of Internet, Broadcasting and Communication, Vol. 15, No. 3, pp. 91-98, 2015. DOI: https://dx.doi.org/JIIBC.2015.15.3.91
8 NTIA technical report: INTERFERENCE PROTECTION CRITERIA Phase 1-Compilation from Existing Sources, NTIA Report 05-432, US Department of Commerce, Oct. 2005.
9 K. W. Suh and J. S. Jang, " A study on compatibility analysis based on minimum coupling loss applicable to frequency coordination combined with geographic information", IJMUE, Vol. 8, No. 6, 2013.
10 ITU, Rec. ITU-R SM.337, Frequency and distance separations, Switzerland, 2008.
11 ITU, Report ITU-R SM.2028, "Monte Carlo simulation methodology for the use in sharing and compatibility studies between different radio services or systems", Switzerland, 2017.
12 K.W. Suh and Y.M. Park, "A Study on frequency coordination between fixed wireless and mobile base station in urban or sub-urban area", JIIBC, Vol. 17, No. 6, 2017. DOI: https://doi.org/10.7236/JIIBC.2017.17.6.41
13 NTIA technical report, "Technical characteristics of radiolocation systems operating in the 3.1-3.7 GHz band and procedures for assessing emc with fixed earth station receivers, NTIA TR-99-361. Dec. 1999.
14 ECC Report 174: Compatibility between the mobile service in the band 2500-2690 MHz and the radiodetermination service in the band 2700-2900 MHz, March 2012.
15 ITU, Rec. ITU-R SF.766, "Methods for determining the effects of interference on the performance and the availability of terrestrial radio-relay systems and systems in the fixed satellite service", Switzerland, 1992.
16 L. F. Abdulrazak and A. O. Arshed, "Interference Mitigation Technique through shielding and antenna discrimination," IJMUE, Vol. 10, No. 3, pp. 343-352, 2015.
17 A. A. R. Townsend, "Digital line-of-sight radio links: A handbook", Prentice-Hall, Upper Saddle River, N. J., 1988.
18 ITU, Rec. ITU-R M.2030, ",Coexistence between IMT-2000 time division duplex and frequency division duplex terrestrial radio interface technologies around 2 600 MHz operating in adjacent bands and in the same geographical area", Switzerland, 2003.
19 A study on measurement of the radio frequency quality regarding frequency bands and their services for frequency reallocation, Research Report, KCA, Korea, 2017.
20 A study on radio frequency quality and service for frequency reallocation, Research Report, KCA, Korea, 2010.
21 ITU, Rec. ITU-R F.1095, "A procedure for determination coordination area between radio-relay stations of the fixed service", Switzerland, 1994.
22 ITU, Rec. ITU-R SF.1486, "Sharing methodology between fixed and wireless access systems in the fixed service and very small aperture terminals in the fixed-satellite service in the 3400-3700 Band. Switzerland, 2000.
23 ITU, Rec. ITU-R P.453, "The radio refractive index: its formula and refractivity data", Switzerland, 2017.
24 ITU, Rec. ITU-R F. 699, "Reference radiation patterns for fixed wireless system antennas for use in coordination studied and interference assessment in the frequency range from 100 MHz to about 70 GHz", Switzerland, 2006.
25 K. W. Suh, "A generalized formulation of the protection ratio applicable to frequency coordination in digital radio relay networks," Radio Science, vol. 42, RS1007, doi:10.1029/2006RS 003470, 2007.
26 ITU, Rec. ITU-R P.530, "Propagation data and prediction methods required for the design of terrestrial line-of-sight systems", Switzerland, 2017.