The Journal of Korean Institute of Communications and Information Sciences (한국통신학회논문지)

The Korean Institute of Commucations and Information Sciences (한국통신학회)
권호 표지
DOI QR코드

DOI QR Code

Sea-Experiment Test of a Shipborne Ad-Hoc Network (SANET) for Maritime VHF Digital Data Communications

해상 초단파 대역 디지털 데이터 통신을 위한 선박 애드혹 네트워크의 실해역 실증 연구

  • Received : 2016.04.06
  • Accepted : 2016.06.17
  • Published : 2016.06.30
Download PDF
⟨ Previous Next ⟩

Abstract

Several VHF bands for the use in analog communications has been changed to those for the use in new maritime digital communications by WRC-12. ITU-R M. 1842-1 has been also standardized, recommending the characteristics of maritime digital communication systems. In addition, a Shipborne Ad-hoc Network (SANET) has been introduced by IMO in order to provide ships, which cannot be connected to a shore directly, with maritime digital data exchange services with the help of ad-hoc communication. In this paper, several functionalities of the SANET, including channel access, route determination to a shore, and data exchange, are verified via sea trials. It is expected that the SANET can be applicable to collecting and analyzing maritime information, facilitating the entry and departure of vessels, and the communication infrastructure of e-navigation.

해상에서 새로운 디지털 데이터 교환 서비스를 제공하기 위해 기존 아날로그 통신용으로 사용하던 초단파 대역 일부를 디지털 통신용으로 전환하는 것을 2012년 세계 전파 회의에서 결의하였고, 국제 전기통신연합 무선통신섹터는 ITU-R M. 1842-1 표준을 통해 해상 디지털 데이터 통신 시스템의 기술 특성을 권고하였다. 수십 해리 정도의 제한적인 초단파 대역의 통신 거리를 극복하기 위해 애드혹 통신을 이용하여 육상국으로부터 멀리 떨어진 선박국에게도 디지털 데이터 교환 서비스를 제공할 수 있도록 선박 애드혹 네트워크 (SANET; Shipborne Ad-hoc Network)의 개념이 국제해사기구를 통해 소개되었다. 본 논문에서는 해상 초단파 대역 디지털 데이터 통신을 위해 개발된 ITU-R M. 1842-1 기반의 통신 시스템에 계층별로 SANET 프로토콜을 구현하고, 실해역에서 네트워크를 구축하여 채널 접속, 경로 설정, 데이터 송수신 등의 기능 들을 검증하였다. 구축된 SANET은 해상정보 수집 및 분석, 입출항 간소화에 활용할 수 있으며, e-navigation을 위한 해상 디지털 통신 인프라로 활용 가능할 것이다.

Keywords

References

  1. J. Kim and W. Shim, "A survey of e-navigation standardization," , vol. 126, pp. 38-44, Nov. 2009.
  2. J. Kim, "A survey of VDES for e-navigation services," vol. 154, pp. 66-71, Jul. 2014.
  3. Y. Lee, "WRC-12," , vol. 140, pp. 113-117, 2012.
  4. C. Yun and Y.-K. Lim, "ASO-TDMA: ad-hoc self-organizing TDMA protocol for shipborne ad-hoc networks," , vol. 12. no. 10, pp. 1-16, Oct. 2012.
  5. C. Yun, A. Cho, S.-G. Kim, J. Park, and Y.-K. Lim, "Design of multiband maritime network for ships and its applications," vol. 7, no. 3, pp. 314-322, Sept. 2009.
  6. ITU, ITU-R M.1842-1: Characteristics of VHF radio systems and equipment for the exchange of data and electronic mail in the maritime mobile service RR appendix 18 channels, 2009.
  7. IMO, IMO FAL-38 INF.2: A study of a data communication network at sea for efficient maritime logistics, 2013.
  8. IMO, IMO NCSR-2 INF.9: A study on enhancing maritime logistics efficiency utilizing maritime VHF digital communication technology and facilitation method, 2014.
  9. S.-M. Kim, S.-H. Byun, S.-G. Kim, C. Yun, and Y.-K. Lim, "Statistical analysis of VHF channel over the sea surface for various ranges," J. KICS, vol. 36, no. 8, pp. 1021-1027, Aug. 2011. https://doi.org/10.7840/KICS.2011.36B.8.1021
  10. S.-G. Kim, S.-M. Kim, C. Yun, and Y.-K. Lim, "Measurements on the propagation path loss exponent at maritime VHF channel using single carrier signal," J. KICS, vol. 40, no. 7, pp. 1450-1456, Jun. 2015. https://doi.org/10.7840/kics.2015.40.7.1450
  11. S.-G. Kim, C. Yun, S.-M. Kim, and Y.-K. Lim, "Baseband receiver design for maritime VHF digital communications," J. KICS, vol. 36, no. 8, pp. 1012-1020, Jun. 2011. https://doi.org/10.7840/KICS.2011.36B.8.1012
  12. S.-G. Kim, S.-Y. Sung, C. Yun, S.-J. Seo, and Y.-K. Lim, "A 28.8kbps Digital Communication modem implementation over the maritime VHF band," in Proc. KICS Int. Conf. Commun., pp. 414-415, Jun. 2014.
  13. S.-G. Kim, S.-Y. Sung, C. Yun, and Y.-K. Lim, "Test results of maritime VHF digital modem complying with the annex 1 of ITU-R M.1842-1," in Proc. KICS Int. Conf. Commun., pp. 371-372, Jun. 2015.
  14. C. Yun and Y.-K. Lim, "EASO-TDMA: enhanced ad-hoc self-organizing TDMA MAC protocol for shipborne ad-hoc networks (SANETs)," EURASIP WCN, vol. 2015. no. 1, pp. 1-12, Jul. 2015.
  15. Y. Choi and Y.-K. Lim, "Geographical AODV protocol for multi-hop maritime communications," IEEE Oceans, pp. 1-3, Jun. 2013.
  16. ITU, ITU-R M.1371-5: Technical characteristics for a universal shipborne automatic identification system using time division multiple access in the VHF maritime mobile band, 2014.

Cited by

  1. 멀티대역 네트워크 선택기 시스템 구현 vol.21, pp.10, 2017, https://doi.org/10.6109/jkiice.2017.21.10.1999