Abstract
현재 국내 철도는 철도 통신망의 여러 기능을 통합하고 보완할 뿐만 아니라, 유선으로 구축된 통신망을 무선화하는 통합무선망에 대한 연구가 진행 중이다. 또한 통합무선망 구축에 필요한 철도 주파수 확보를 위한 활동이 진행 중이다. 본 논문은 국내 철도 통신망의 문제점을 분산된 네트워크 구조, 제한된 기능, 상이한 통신방식, 통신방식의 기술적 한계, 비면허 대역 사용을 중심으로 분석한다. 그리고 국내 철도통신과 비교하여, 세계 철도통신의 현황 및 동향에 대하여 분석한다. 분석된 문제점을 해결하기 위한 개선방안에 대하여 제안하고, 이에 대한 기대효과를 도출한다. The research about the Korean integrated wireless network for railways is in progress. The network integrates and complements the various railway functions. In addition, the network is trying to change from wire communication to radio communication. The activities for the railway frequency acquisition are also in progress for the implementation of the network. This paper analyzes the problems for the Korean railway communication networks. The problems revolve around the dispersed network structure, the limited functions, the different communication methods, the technology limitation for the communication methods, and the usage of the non-licensed band. Subsequently, we explain the current state and trend for the foreign communication of the railways. This paper suggests improvement plans for the problems and also explains the expected efficiency for the improvement plans.
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