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Analysis of Receiving Environment Changes According to Channel Reallocation Method of Terrestrial DMB

지상파 DMB 채널 재배치 방안에 따른 송수신환경 변화 분석

  • Kim, Joo-Seok (Department of Electrical and Electronic Engineering, Chungbuk National University) ;
  • Kim, Kyung-Seok (Department of Electrical and Electronic Engineering, Chungbuk National University)
  • 김주석 (충북대학교 전파통신공학과) ;
  • 김경석 (충북대학교 전파통신공학과)
  • Received : 2013.11.28
  • Accepted : 2013.12.13
  • Published : 2013.12.31

Abstract

Many communications and broadcast media have emerged by the rapid development of wireless communication and broadcasting technologies, so the radio resources are insufficient for these services. DMB can use the regional integrated channel due to the SFN broadcasting network, so DMB uses the frequency efficiently. However, the domestic DMB uses the existing analog TV frequency band and uses a plurality of channels in some areas because of the interference with the analog TV. However, the broadcasting of the analog TV was terminated, so the channel reallocation of the terrestial DMB is necessary for the efficient use of frequencies. This paper proposes the channel reallocation method of the terrestial DMB and analyzes the change of transmission and reception environments by using simulations.

무선 통신과 방송 기술의 급격한 발전에 의해 다양한 통신, 방송 매체들이 등장하였고 이를 서비스하기 위한 주파수 자원이 부족한 실정이다. DMB는 SFN 방송망을 구성하여 권역별로 하나의 통합 채널을 통해 방송을 서비스할 수 있어 주파수 사용효율측면에서 유리하다. 하지만 국내 DMB는 기존 아날로그 TV 대역을 사용하고 있으며, 아날로그 TV와의 간섭문제 때문에 일부 지역에서는 다수의 채널을 사용하고 있다. 하지만 아날로그 TV 방송이 종료됨에 따라 간섭문제가 해결되었고, 이에 따라 주파수의 효율적인 사용을 위해 지상파 DMB의 채널 재배치가 필요한 실정이다. 본 논문에서는 지상파 DMB의 채널 재배치 방안을 제안하고 이에 따른 송수신환경 변화를 모의실험을 통해 분석하고 검증하였다.

Keywords

References

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Cited by

  1. National SFN Composition Method based on T-DMB considering Local Broadcasting Station vol.14, pp.4, 2014, https://doi.org/10.7236/JIIBC.2014.14.4.21