DOI QR코드

DOI QR Code

A improved back-off algorithm using the gaussian model in the vehicular networks

차량 간 통신에서 가우시안 모델을 적용한 개선된 백오프 알고리즘

  • 오상엽 (가천대학교 IT 대학 인터랙티브미디어)
  • Received : 2012.06.20
  • Accepted : 2012.07.10
  • Published : 2012.07.31

Abstract

When a car accident happened, the accident vehicle should broadcast a safe message to its neighbors in multi-hop. However, the pure flooding is difficult to protect a chain-reaction collision because of the frequent collision and the communication delay. To solve this problem, we proposes a back-off algorithm applied to the estimation of the neighbor node count using the t-distribution. And we proposes a MAC protocol preventing the communication delay by separating the neighbor's count collection channel and data channel. As a result, we show the frame reception success rate of our protocol improved more 10% than the previous protocol.

Keywords

vehicular networks;multi-hop;safe message;gaussian model;multi-channel;back-off

Acknowledgement

Supported by : 가천대학교