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Study on the Spectrum Sharing between IMT and FSS Systems Considering MIMO SDMA Interference Mitigation Technique in C Band  

Kang, Young-Heung (School of Electronic & Information Eng., Kunsan National Univ.)
Abstract
Spectrum sharing between wireless systems becomes a critical issue clue to emerging new technologies and spectrum shortage. Recently, IMT system has been allocated in the same frequency C band (3400-4200MHz) along with FSS services on co-primary basis which means that harmful. interference probability may be inspired. In this paper, to estimate the spectrum sharing between IMT and FSS systems, I propose the minimum separation distances as a sharing criterion of I/N=-10dB using the interference to noise ratio(I/N) received at the reference FSS earth station from IMT multiple base station. Especially, same results imply that I/N values can be greatly reduced with MMO SDMA interference mitigation technique of IMT base station so that FSS and IMT systems can co-exist in the sam e frequency with appropriate separation distance.
Keywords
Spectrum sharing; IMT; FSS; MIMO; SDMA; C band;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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1 Z. A. Shamsan and T. A. Rahman, "On the comparison of intersystem interference scenarios between IMT-advanced and fixed services over various deployment areas at 3500MHz", Progress In Electromagnetic Research C. vol.5, pp,169-185, 2008.   DOI
2 강영홍, "C 대역에서 IMT와 FSS 시스템간주파수 공유를 위한 최소 이격거리 분석," 한국항행학회 논문지, 제13권 제6호, pp.907-915, 2009.12.
3 ITU-R Recommendation M1645, Framework and overall objectives of the future development of IMT-2000 and systems beyond IMT-2000, June 2006.
4 ITU-R Report M2078, Estimated spectrum bandwidth requirements for the future development of IMT-2000 and IMT-Advanced, 2006.
5 WiMAX Forum, Compatibility of service using WiMAX technology with satellite services in the 2.3-2.7 GHz and 3.3-3.8 GHz bands, 2007.
6 ITU-R Report M2109, Sharing studies between IMT-Advanced systems and geostationary satellite networks in teh fixed-satellite service in the 3400-4200 and 4500-4800MHz frequency bands, 2007.
7 TU-R Recommendation P.452-12, Prediction procedure for the evaluation of microwave interference between stations on the surface of the Earth at frequencies above about 0.7GHz, 2005.
8 ITU-R Recommendation S.465-5, Reference earch-station radiation pattern for use in coordination and interference assessment in the frequency range from 2 to about 30GHz, Aprill 1993.
9 ITU-R Recommendation F.758-3, Condiderations in the development of criteria for sharing between the terrestrial fixed service and other services, 2003.