Abstract
VANET은 안전 운전 및 효율적인 교통 환경을 제공하는 다양한 ITS 서비스 실현을 위한 기술 중 하나이다. VANET에서의 데이터 전송은 노드들의 높은 이동성으로 인하여 복잡성을 야기한다. 본 논문에서는 VANET에서 패킷을 안정적이고 적시에 전달하는 새로운 포워딩 기법을 제안한다. 제안된 기법은 차량 만남을 예측하기 위해 트래픽 통계를 이용하고, 만남 장소에서의 성공적인 무선 전송 확률을 고려함으로써 포워딩 결정을 최적화 한다. 시뮬레이션을 통하여 제안된 포워딩 기법이 VANET 환경에서 신뢰성있는 데이터 전송을 달성함을 확인하였다. Vehicular Ad hoc Network (VANET) is one of technologies to realize various ITS services for safe driving and efficient traffic control. However, data delivery in VANETs is complicated due to high mobility and unreliable wireless transmission. In this paper, we develop a novel forwarding scheme to deliver packets in a reliable and timely manner. The proposed forwarding scheme uses traffic statistics to predict the encounter of two vehicles, and optimize its forwarding decision by taking into consideration the probability of successful transmission between them at the encounter place. We evaluate our scheme through simulations and show that our proposed scheme provides reliable data delivery in VANETs.
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