NeTS: Small: Information Dissemination in Vehicular Networks for Reducing Traffic Congestion

NeTS：小型：车载网络中的信息传播以减少交通拥堵

• 批准号: 1217572
• 负责人: David Du
• 金额: $ 42万
• 依托单位: University of Minnesota-Twin Cities
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-08-01 至 2017-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1217572&HistoricalAwards=false
• 关键词: NeTS; Small; Information; Dissemination; Vehicular

The goal of this project is to develop solutions to reduce congestion problem in urban area. Each vehicle will be equipped with GPS and dedicated short-range communications (DSRC) capability in the near future. In congested urban areas, Road Side Units (RSUs) and Relay Nodes (RNs) are deployed. Each vehicle entering these areas will report its trajectory (i.e., a selective path to a destination) based on GPS to a Control Center via an RSU. RSUs can monitor the vehicles passing by and assist the data delivery between Control Center and vehicle or vehicle to RSUs. The Control Center will be responsible for deciding how to smooth the traffic based on the current traffic load by adjusting the trajectories of some vehicles or sending warning message to vehicles in certain areas. This project is to investigate the feasibility and three associated research issues of such an infrastructure. The research issues to be addressed are 1) How to cost effectively deploy the minimum numbers of RSUs and RNs in a given roadmap to guarantee the delay and performance of data dissemination in such an infrastructure? 2) How to effectively deliver data from vehicles to RSU and from RSU to vehicles? 3) How to disseminate traffic related warning messages to vehicles that may be affected by a given traffic incidence in a timely and effective manner? This project is expected to advance the understanding of vehicle-to-vehicle and vehicle-to-infrastructure communications to a higher level. Moreover, this project has a substantial impact to the society. Not only can the commute of each person be shortened, but also the total energy saving and its associated environmental impact can be huge.

该项目的目标是制定解决方案以减少城市地区的拥堵问题。在不久的将来，每辆车都将配备 GPS 和专用短程通信 (DSRC) 功能。在拥挤的城市地区，部署路边单元（RSU）和中继节点（RN）。每辆进入这些区域的车辆都将根据 GPS 通过 RSU 向控制中心报告其轨迹（即到达目的地的选择性路径）。 RSU可以监控经过的车辆，并协助控制中心和车辆之间或车辆到RSU之间的数据传输。控制中心将负责根据当前的交通负荷，通过调整部分车辆的轨迹或向某些区域的车辆发送警告信息来决定如何畅通交通。该项目旨在调查此类基础设施的可行性和三个相关研究问题。要解决的研究问题是： 1）如何在给定路线图中经济高效地部署最少数量的 RSU 和 RN，以保证此类基础设施中数据传播的延迟和性能？ 2）如何有效地从车辆到RSU以及从RSU到车辆传输数据？ 3）如何及时有效地向可能受到特定交通事件影响的车辆发布交通相关警告信息？该项目有望将车对车和车对基础设施通信的理解提升到更高水平。此外，该项目对社会产生了重大影响。不仅可以缩短每个人的通勤时间，而且总体节能及其相关的环境影响也可能是巨大的。