首页> 外文期刊>IEEE transactions on mobile computing >Enabling Situation Awareness at Intersections for IVC Congestion Control Mechanisms
【24h】

Enabling Situation Awareness at Intersections for IVC Congestion Control Mechanisms

机译:在IVC拥塞控制机制的交叉口处启用情境意识

获取原文
获取原文并翻译 | 示例

摘要

An Intersection Assistance System aim to assist road users in avoiding collisions at intersections, either by warning the driver or by triggering automated actions. Such a system can be realized based on passive scanning only (e.g., using LiDAR) or supported by active Inter-Vehicle Communication (IVC). The main reason to use Inter-Vehicle Communication (IVC) is its ability to provide situation awareness even when a possible crash candidate is not yet in visual range. The IVC research community has identified beaconing, i.e., one-hop broadcast, as the primary communication primitive for vehicular safety applications. Recently, adaptive beaconing approaches have been studied and different congestion control mechanisms have been proposed to cope with the diverse demands of vehicular networks. In this paper, we show that current state-of-the-art congestion control mechanisms are not able to support IAS adequately. Specifically, current approaches fail due to their inherent fairness postulation, i.e., they lack fine grained prioritization. We propose a solution that extends congestion control mechanisms by allowing temporary exceptions for vehicles in dangerous situations, that is, situation-based rate adaptation. We show the applicability for two state-of-the-art congestion control mechanisms, namely Transmit Rate Control (TRC) and Dynamic Beaconing (DynB), in two different vehicular environments, rural and downtown.
机译:交叉口辅助系统旨在通过警告驾驶员或触发自动操作来帮助道路使用者避免在交叉口发生碰撞。可以仅基于被动扫描(例如,使用LiDAR)来实现这样的系统,或者可以通过主动车辆间通信(IVC)来支持这种系统。使用车内通信(IVC)的主要原因是,即使可能的碰撞候选者不在可视范围内,它也能够提供态势感知能力。 IVC研究界已将信标即一跳广播确定为用于车辆安全应用程序的主要通信原语。近年来,已经研究了自适应信标方法,并且已经提出了不同的拥塞控制机制来应对车辆网络的各种需求。在本文中,我们证明了当前最先进的拥塞控制机制无法充分支持IAS。具体而言,由于其固有的公平性假设,因此当前方法失败,即它们缺乏细粒度的优先级。我们提出了一种解决方案,它通过允许危险情况下的车辆暂时例外(即基于情况的速率调整)来扩展拥塞控制机制。我们展示了两种最先进的拥塞控制机制,即传输速率控制(TRC)和动态信标(DynB)在两种不同的车辆环境(农村和市区)中的适用性。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号