The Journal of Korean Institute of Electromagnetic Engineering and Science (한국전자파학회논문지)

The Korean Institute of Electromagnetic Engineering and Science (한국전자파학회)
권호 표지

Frequency Sharing of TDD-OFDM/OFDMA Based Systems beyond 3G with Fixed Satellite Service Earth Station

TDD-OFDM/OFDMA 기반의 차세대 이동 통신 시스템과 고정 위성서비스 지구국 간의 주파수 공유 분석

  • Jo Han-Shin (Department of Electrical and Electronic Engineering, Yonsei University) ;
  • Yoon Hyun-Goo (Department of Computer and Electronic Engineering, Myongji College) ;
  • Yook Jong-Gwan (Department of Electrical and Electronic Engineering, Yonsei University)
  • 조한신 (연세대학교 전기전자공학과) ;
  • 윤현구 (명지전문대학 컴퓨터전자과) ;
  • 육종관 (연세대학교 전기전자공학과)
  • Published : 2006.05.01
Download PDF
⟨ Previous Next ⟩

Abstract

In this paper, the frequency sharing issue between time division duplex-orthogonal frequency division multiplexing/orthogonal frequency division multiple access(TDD-OFDM/OFDMA) based systems beyond third generation(B3G) and fixed Satellite Service(FSS) earth station has been studied. The conventional advanced minimum coupling loss(A-MCL) is adopted to assess the interference from a single base station(BS) of B3G systems. The aggregated interferences from base stations and mobile stations(MS) are evaluated by applying the extended A-MCL and analysed with a cumulative density function(CDF). The minimum distances that enable a single FSS earth station to sharing the frequency with a single BS are between 4 and 53.3 km. In the case of 20 MS per sector, the BS-to-BS distance and the minimum distance between a ES and BS are 6.5 and 2.8 km, respectively.

본 논문에서는 TDD-OFDM/OFDMA(Time Division Duplex-Orthogonal Frequency Division Multiplexing/Orthogonal Frequency Division Multiple Access) 기반의 차세대 이동 통신 시스템과 고정 위성 지구국간의 주파수 공유 분석 결과를 제시하였다. 기존의 A-MCL을 이용하여 한 기의 차세대 이동 통신 기지국에 의한 간섭 전력을 평가하였다. 그리고 셀룰라 서비스를 가정한 다수의 기지국과 이동국에 의한 간섭은 확장된 A-MCL을 이용하여 평가하고 누적 밀도 함수(CDF)를 이용하여 확률적으로 분석하였다. 분석 결과를 통해 한 기의 기지국과의 공유를 위한 최소 이격 거리는 $4{\sim}5.33$ km임을 알 수 있었다. 또한 셀룰라 시스템인 경우 섹터 당 평균 20명의 사용자를 동시에 서비스할 때 기준 간섭치를 만족하는 기지국 간 거리는 6.5km이고 이때 위성 지구국으로부터 가장 인접해 있는 기지국까지의 거리는 2.8 km임을 확인할 수 있었다.

Keywords

References

  1. ITU-R Recommendation M. 1645, 'Framework and overall objectives of the future development of IMT-2000 and systems beyond IMT-2000', Jun. 2003
  2. ITU-R WP 8F/TEMP/209-E, 'Preliminary draft new report on radio aspects for the terrestrial component of IMT-2000 and systems beyond IMT-2000', Feb. 2005
  3. CEPT ERC Report 64, 'Frequency sharing between UMTS and existing fixed services', May 1999
  4. CEPT ERC Report 65, 'Adjacent band compatibility between UMTS and other services in the 2 GHz band', May 1999
  5. R. Nee, R. Prasad, OFDM for Wireless Multimedia Communications, Artech House, Boston, 2000
  6. Han-Shin Jo et al., 'The coexistence of OFDMbased systems beyond 3G with fixed service microwave systems', Journal of Communications and Networks Special Issue on Spectrum Resource Optimization Accepted for Publication, Jun. 2006
  7. 정우기 외, '차세대 이동 통신 시스템의 주파수 공유분석을 위한 개선된 MCL 방법', 한국전자파학회논문지, 17(3), pp. 307-316, 2006년 3월
  8. ITU-R Recommendation SF.1006, 'Determination of the interference potential between earth stations of the fixed-satellite service and stations in the fixed service', Apr. 1993
  9. Dipl.-Ing., Dirk Poppen, 'Spectrum sharing between a fixed-service microwave system and a cellular CDMA mobile radio system', in Proc. IEEE Vehicular Technology Conf. (VTC1993), pp. 564-567, May 1993
  10. ITU-R Document 8F/TEMP/232, 'Draft report on the coexistence between IMT-2000 TDD and FDD radio interface technologies operating in adjacent bands and in the same geographical area', Mar. 2002
  11. ITU-R Recommendation SM.1448, 'Determination of the coordination area around an earth station in the frequency bands between 100 MHz and 105 GHz', May 2000
  12. IEEE802.16e/D9, 'Draft IEEE standard for local and metropolitan area networks. Part 16: Air interface for fixed and mobile broadband wireless access systems', Jun. 2005
  13. NOKIA, '1xEV-DV Evaluation Methodology (V1-2.1)', 3GPP2/TSG-C.R1002, 2003
  14. Jarno Niemela, 'Impact of base station site and antenna configuration on capacity in WCDMA cellular networks', Master of Science Thesis, Tampere University of Technology, Feb. 2003
  15. ITU-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 0.7 GHz', Mar. 2005
  16. COST Action 231, 'Digital mobile radio towards future generation systems, final report', Tech. Rep., European Communities, EUR 18957, 1999
  17. ITU-R Recommendation M.1225, 'Guidelines for evaluation of radio transmission technologies for IMT-2000', Feb. 1997