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

The Korean Institute of Commucations and Information Sciences (한국통신학회)
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LTE Femtocell Network Configuration and an Off-Load Scheme According to Traffic Type within Smart Shipyard Area

스마트 조선소내 LTE 펨토셀 네트워크 구성과 트래픽 종류에 따른 오프로드 방식

  • Kim, Su-Hyun (Dept. of Electronics and Communications Engineering, Kwangwoon University) ;
  • Jung, Min-A (Dept. of Computer Engineering, Mokpo National University) ;
  • Lee, Seong Ro (Dept. of Information & Electronics Engineering, Mokpo National University) ;
  • Min, Sang-Won (Dept. of Electronics and Communications Engineering, Kwangwoon University)
  • Received : 2014.05.02
  • Accepted : 2014.08.07
  • Published : 2014.08.31
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Abstract

In a smart shipyard area, it is possible to integrate a variety of ship modules from separate sites into a final ship construction by using mobile applications. In this paper, we proposed the LTE femtocell network configuration which is applicable to sub shipyard, the traffic exchange method with shipyard headquarter and offload method to separate the general traffic. We defined the mode change in a femtocell gateway for supporting offload for general traffic between the main server in shipyard headquarter and sub shipyard, the offload data managements and message definition. We check the transmitted/received message flow in the wireless link, and consider the performance of the proposed method using state the transition diagram. It is expected that our results can improve the productivity within a smart shipyard by mobile communications and LTE femtocell network.

스마트 조선소는 조선소 내 여러 사이트에서 제작되는 모듈부터 최종통합하기까지의 모든 업무를 모바일 애플리케이션을 이용하여 현장에서 바로 처리 가능하게 한다. 본 논문에서는 하위조선소에 적용할 수 있는 LTE 펨토셀 네트워크 구성과 상위조선소와 중요정보를 주고받는 트래픽을 주고받기 위한 일반 트래픽을 분리하는 오프로드 방식을 제안하였다. 상위 조선소의 메인서버와 하위 조선소 간에 정보와 일반 트래픽의 오프로드를 지원하기 위한 펨토셀 게이트웨이에서의 모드전환, 오프로드 관련 정보 관리, 관련 메시지를 정의하였다. 제안한 방안을 통해 무선구간에서의 과부화된 트래픽을 최적화된 경로로 보낼 수 있는지 기능 수행여부를 송수신 메시지 플로우와 state transition diagram을 이용하여 확인하였다. 우리는 이동통신망과 LTE 펨토셀 네트워크를 스마트 조선소내에 적용하여 조선소 업무와 생산성 향상이 기대된다.

Keywords

References

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