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Implementation of Mobile Hot-spot Network for Subway Wireless Backhaul Network

모바일 핫스팟 네트워크 기반의 도시철도 무선백홀망 구현

  • Kim, Dongha (Department of Railroad Electric and Signaling Engineering, Graduate School of Railway, Seoul National University of Science and Technology) ;
  • Kim, Ilgyu (Giga Communication Research Section2 of Electronics Telecommunications Research Institute) ;
  • Choi, Kyuhyoung (Department of Railroad Electric and Signaling Engineering, Graduate School of Railway, Seoul National University of Science and Technology)
  • Received : 2014.12.29
  • Accepted : 2015.04.23
  • Published : 2015.06.30

Abstract

This paper proposes a new wireless backhaul technology based on MHN(Mobile Hotspot Network) which uses a wide frequency band of millimeter wave to provide wideband Wi-Fi services for subway passengers. Performance analysis of MHN up and down links, based on data: up and down links structure analysis of physical layer and simulation study of the MHN wireless backhaul link model, show that the proposed MHN-based wireless backhaul network can transmit data at a 1.2Gbps data rate and provide Internet service 100 times faster than that of conventional WiBro-based wireless backhaul networks. These results indicate that the proposed MHN technology is appropriate for subway mobile networks.

도시철도 전동차 승객에게 초고속 Wi-Fi 서비스를 제공하기 위하여, 밀리미터파 대역의 광대역 주파수를 사용한 차세대 이동통신 네트워크인 MHN(Mobile Hotspot Network)을 이용한 새로운 이동무선백홀망 구축기술을 제안하였다. MHN의 상하향 링크 물리계층의 데이터 전송 구조에 대한 분석 및 이동무선 백홀 링크 모델링에 기반한 시뮬레이션을 수행하여 링크 성능을 분석한 결과, 1.2Gbps의 데이터 전송이 가능하며 기존의 WiBro 기반 이동무선백홀에 비해 100배 이상의 초고속 인터넷 서비스를 제공할 수 있게 됨으로써 도시철도 무선데이터망으로 적합하다는 것을 제시하였다.

Keywords

Acknowledgement

Grant : 초연결 스마트 모바일 서비스를 위한 5G 이동통신 핵심기술 개발

Supported by : 정보통신기술진흥센터

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