정보처리학회논문지C (The KIPS Transactions:PartC)

한국정보처리학회 (Korea Information Processing Society)
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Wi-Fi 기반 차량 네트워크에서의 인터넷 처리율 분석

Throughput Analysis in Vehicular Wi-Fi Networks

  • 김원중 (고려대학교 전기전자전파공학부) ;
  • 김영현 (고려대학교 전기전자전파공학부) ;
  • 윤주상 (동의대학교 멀티미디어공학과) ;
  • 백상헌 (고려대학교 전기전자전파공학부)
  • 투고 : 2010.08.25
  • 심사 : 2010.11.24
  • 발행 : 2011.02.28
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초록

최근 무선 통신의 발달과 무선 접속 기기의 등장으로 인하여 언제, 어디서든 인터넷을 접속하여 다양한 응용 프로그램을 사용할 수 있게 되었다. 특히, 차량 네트워크의 발달로 이동 중인 차량에서도 인터넷 접속이 가능하게 되었다. 또한, 차량 네트워크와 관련된 다양한 연구들이 활발히 진행되고 있다. 본 논문에서는 실제로 쓰이는 다양한 차량 네트워크의 구조를 살펴보고, 각 구조에서 차량 내에서의 Wi-Fi와 외부의 네트워크를 종합적으로 고려하여 성능 측정을 하였다. 성능 측정 결과를 통해서 현재 사용되고 있는 차량 네트워크의 유용성을 판단하였다.

Due to advances in wireless communications and portable terminals, any-time, any-where, and any-device Internet access is possible. In particular, Internet access in moving vehicles is an emerging and challenging issue. Even though a variety studies have been conduced for vehicular networks, little attention is paid to vehicular Wi-Fi networks where a Wi-Fi access point (AP) is installed at the vehicle and the AP is connected to an external base station (BS). In this paper, we conduct a measurement study on the uplink and downlink throughput for Internet access in vehicular Wi-Fi networks. We consider diverse network environments: high-speed train, car, and subway. Measurement results demonstrate that current Internet access in vehicular Wi-Fi networks are not satisfactory for interactive multimedia applications. Therefore, in-depth study on resource management in vehicular Wi-Fi networks is strongly required.

키워드

참고문헌

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