Journal of Advanced Navigation Technology (한국항행학회논문지)

The Korean Navigation Institute (한국항행학회)
권호 표지
DOI QR코드

DOI QR Code

Interference Analysis for Deployment of the Efficient Village Broadcasting Radio System

마을방송 시스템의 효율적 구축을 위한 간섭분석

  • Kang, Young-Heung (School of Computer, Information and Communication engineering, Kunsan University)
  • 강영흥 (군산대학교 컴퓨터정보통신공학부)
  • Received : 2016.07.17
  • Accepted : 2017.08.17
  • Published : 2017.08.31
Download PDF
⟨ Previous Next ⟩

Abstract

Since the existing analog village broadcasting system has some technical problems in applying and degradations in performance due to its old equipments, it had been required recently to be changed to a wireless digital system and to develop the standardization. However, it is important to analyze the interference between villages in deploying the efficient digital wireless village broadcasting system. In this paper, simulations for co-channel and adjacent channel interference have been carried out considering digital private mobile radio(dPMR) and digital mobile radio(DMR) systems as a representative mobile radio. These results for frequency reuse and channel separation drawn from the separation distance between villages in co-channel interference and the frequency offset in adjacent interference can be helpful to establish a standard and the testing service in the near future.

현재 아날로그 방식의 마을방송 시스템은 기술 적용의 문제 및 시설 노후화로 인한 성능 저하 등의 문제로 인하여 무선 디지털 시스템으로의 전환과 이에 따른 시스템 표준이 요구되고 있다. 그러나 주파수 부족으로 인해 효율적인 디지털 무선 마을 방송 시스템의 구축을 위해서는 이웃마을간의 간섭분석이 중요하므로 여기서는 대표적인 간이무선국 dPMR(digital private mobile radio) 및 DMR(digital mobile radio) 방식을 고려하여 동일채널 간섭과 인접채널 간섭에 대한 시뮬레이션을 수행하였다. 동일채널 간섭분석에서는 마을간 이격거리와 인접채널 간섭분석에서는 주파수 오프셋을 사용하여 주파수 재사용 및 채널분리에 대한 본 논문의 결과는 향후 마을방송 표준개발과 시범 사업화를 위한 자료로 활용될 것이다.

Keywords

References

  1. RRA, Technical regulation notification, [Online] RRA, notification July.2014. [Internet]. Available: https://members.wto.org./crnattachments/2014/tbt/KOR/14_1428_01_x.pdf
  2. S. K. Yang and S. B. Lee, Wireless connection protocol of dPMR Digital Narrowband Radio (6.25 kHz FDMA), TTA, Technical Report TTAE.ET-TS 102 658, Dec. 2015
  3. D. S. Choi and Y. H. Kang, "Standardization of the village announcing system using a private mobile radio," in Proceeding of the 27th Annual Symposium on The Korean Institute of Electromagnetic Engineering and Science Institute, Seoul: Korea, Nov. 2015.
  4. D. S. Choi , and Y. H. Kang, "A service coverage analysis for the digital radio village broadcasting system," The Journal of Korea Navigation Institute, Vol. 19, No. 6, pp. 630-635, Dec. 2015.
  5. D. S. Choi , Y. H. Kang, "Measurement analysis of propagation for the digital radio village broadcasting system," The Journal of Korea Navigation Institute, Vol. 19, No. 6, pp. 630-635, Dec. 2016.
  6. http://www.qsl.net/kb9mwr/projects/dv/ apco25/APCO%20P25%20 Standards.pdf
  7. ETSI, Electromagnetic compatibility and radio spectrum matters (ERM); digital private mobile radio (dPMR) using FDMA with a channel spacing of 6,25kHz, [Online] TS 102 658, Feb. 2013. Available: http://www.etsi.org
  8. ETSI, Electromagnetic compatibility and radio spectrum matters (ERM); digital mobile radio (DMR) general system design, [Online] TS 102 398, Jan. 2013. Available: http://www.etsi.org
  9. ACMA, Derivation of 400MHz band land mobile frequency-distance constraints used in RALI LM8, Aug. 2014.
  10. FCC Regulation Part 90, FCC 90.210: Emission Masks; FCC 90.211: Adjacent channel power limits.
  11. ETSI EN 300 113-1, Electromagnetic compatibility and radio spectrum matters(ERM); Land mobile service; Radio equipment intended for the transmission of data (and/or speech) using constant or non-constant envelope modulation and having an antenna connector; Part 1: Technical characteristics and methods of measurement European Standard, Nov. 2011.
  12. ITU, Prediction procedure for the elevation of interference between stations on the surface of the Earth at frequencies above about 0.1GHz, Recommendation ITU-R P.452-16, July 2015.