Journal of IKEEE (전기전자학회논문지)

Institute of Korean Electrical and Electronics Engineers (한국전기전자학회)
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Random Early Beacon Broadcast (REB2) for Cooperative Vehicle Safety Applications

차량안전 응용을 위한 임의 조기 비컨방송

  • Jeong, Han-You (Department of Electrical Engineering, Pusan National University) ;
  • Nguyen, Hoa-Hung (Department of Electrical Engineering, Pusan National University)
  • Received : 2020.11.30
  • Accepted : 2020.12.14
  • Published : 2020.12.31
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Abstract

In the V2X communications, each vehicle periodically broadcasts a message, called a beacon, so that its neighbor vehicles can accurately predict the near-future positions of the sending vehicle. In particular, the mobility-adaptive beacon broadcast (MAB2) scheme keeps the tracking error of a sending vehicle below a fixed threshold within a few consecutive beacon losses. In this paper, we present a random-early beacon broadcast (REB2) scheme that addresses the beacon aging problem of the MAB2 scheme. The simulation results show that, for a neighbor vehicle within 100 m distance, the tracking failure probability of REB2 scheme can be reduced to less than 1/10 of that of MAB2 scheme.

V2X 통신에서 차량들은 비컨(Beacon)이라고 불리는 메시지의 주기적 방송을 통해 주변 차량들이 송신 차량의 이동상태를 정확하게 예측할 수 있도록 지원한다. 특히, 이동 적응형 비컨 방송 기술(MAB2)은 일정한 한도 내에서 연속된 비컨 손실이 발생하더라도 송신차량의 추적 오차를 임계치 이하로 유지할 수 있는 비컨방송기법이다. 본 논문에서는 MAB2 기술이 야기할 수 있는 비컨의 노후화 문제를 해결하기 위한 임의 조기 비컨 방송 기법을 제시하고, 시뮬레이션을 통해 충돌사고가 발생할 수 있는 100 m 이내 근거리 차량의 추적실패확률이 1/10 이하로 감소함을 보인다.

Keywords

Acknowledgement

This work was supported by a 2-Year Research Grant of Pusan National University

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