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

The Korean Institute of Commucations and Information Sciences (한국통신학회)
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Study of Efficient Device Discovery Method for Fast Connection in Wi-Fi Direct

Wi-Fi Direct 환경에서 Fast Connection을 위한 효과적인 Device Discovery 기법 연구

  • Received : 2016.04.15
  • Accepted : 2016.06.09
  • Published : 2016.06.30
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Abstract

Wi-Fi Direct standard technology has been widely deployed on the recently manufactured products such as smart phone, smart monitor, TV, set-top box, and gaming console, and it was published from Wi-Fi Alliance with the name of Wi-Fi Peer-to-Peer Technical Specifications (v1.4, 2014) for direct connection on the wireless communication environment. However, the connection process of this standard needs 5 to 10 seconds so it can lead to user's inconvenience as well as long delay for connection. From the focus of that this problem was derived from long discovery process composed of Scan and Find, as a result, the proposed scheme on this paper modified and adapted Scan and Find processes with reassembling steps of them for reducing the connection delay. In addition, the analysis and experiments were progressed for the evaluations of the proposed scheme.

현재 Wi-Fi Alliance에서 발표한 Wi-Fi Peer-to-Peer Technical Specification (v1.4, 2014) 기술은 Wi-Fi Direct 접속을 위하여 개발되었으며, 최근 출시되는 대부분의 스마트폰과 TV, 모니터, 셋톱박스, 게임콘솔 등의 장치에서 상용화되고 있다. 하지만, 위 기술 표준에서 정의되는 초기 접속 절차는 5~10 초의 시간이 소모되며, 이는 해당 기술의 성능과 더불어 사용의 편의성 측면에서도 문제가 될 수 있다. 이러한 문제는 현재 표준 기술의 Scan 절차와 Find 절차로 구성된 초기 Discovery 절차의 비효율성으로 인하여 발생되며, 본 고는 이와 같은 문제를 해결하기 위하여 Wi-Fi Direct 절차를 구성하는 Scan 및 Find 절차를 재구성하여 Discovery 소요 시간을 단축시키고 접속 환경에 대한 효율을 향상시켰으며, 객관적 검증을 위하여 성능분석과 실험을 진행하였다.

Keywords

References

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