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    • 1. 发明授权
    • Achieving high-rate multi-hop data delivery in vehicular networks
    • 在车载网络中实现高速多跳数据传输
    • US08169897B2
    • 2012-05-01
    • US12563420
    • 2009-09-21
    • Ratul K. GuhaWai ChenJasmine Chennikara-VargheseStephanie Demers
    • Ratul K. GuhaWai ChenJasmine Chennikara-VargheseStephanie Demers
    • H04J1/16
    • H04L45/00H04L45/02H04L45/125H04L45/44H04L67/12
    • A method for high rate data delivery in a multi-hop vehicular network comprises at each source vehicle, initiating a packet having a flow tag, assigning an identifier of the content and the current location to the flow tag, and forwarding the packet; at each destination vehicle, setting a flow request and broadcasting at the current intersection; further on movement, setting the flow request at the new intersection, and at each intersection, selecting a header vehicle at the intersection, computing backlog and congestion indicators and listening for broadcasts with a matrix and the flow requests at the header vehicle, determining if the matrix is present, updating the matrix in accordance with the backlog and congestion indicators if the matrix is present, initializing the matrix and estimating the delay on the outgoing road segments if the matrix is not present, forwarding the packet flow, and broadcasting the matrix from the header vehicle.
    • 一种多跳车辆网络中高速率数据传输的方法,包括在每个源车辆发起具有流标签的分组,向流标签分配内容的标识符和当前位置,以及转发分组; 在每个目的地车辆,在当前交叉点设置流量请求和广播; 进一步运动,在新路口设置流量请求,在每个交点处,在交点处选择一个头部车辆,计算积压和拥塞指示符,并用矩阵和头部车辆的流量请求监听广播,确定是否 矩阵存在,如果矩阵存在,则根据积压和拥塞指示更新矩阵,如果矩阵不存在则初始化矩阵并估计出站道路段上的延迟,转发分组流,并且从矩阵广播矩阵 头部车辆。
    • 2. 发明申请
    • Distributed Method for Minimum Delay Multi-Hop Data Delivery in Vehicular Networks
    • 车载网络中最小延迟多跳数据传送的分布式方法
    • US20090238187A1
    • 2009-09-24
    • US12408221
    • 2009-03-20
    • Ratul K. GuhaWai ChenJasmine Chennikara-VargheseStephanie Demers
    • Ratul K. GuhaWai ChenJasmine Chennikara-VargheseStephanie Demers
    • H04L12/56
    • G08G1/161H04L2012/40273H04W40/20
    • An inventive method for data delivery in a multi-hop vehicular network with multiple vehicles and intersections is presented. The method comprises, at each source vehicle, initiating packet flow, labeling packets with destination coordinates and a current location, and forwarding the packet flow, and at each intersection, selecting a header vehicle, computing a backlog indicator and listening for broadcasts with a matrix and delay information, updating the matrix in accordance with the backlog indicator if the matrix is present, otherwise initializing the matrix, forwarding the packet flow, and broadcasting the matrix from the header vehicle. In one embodiment, selection of the header vehicle is performed based on random countdown and vehicle ID. The method converges to the optimal (lowest latency) state irrespective of the initial starting point of the network and continues to tend towards the optimal state even as the network conditions alter.
    • 提出了一种在多车辆和交叉路口的多跳车辆网络中进行数据传输的创新方法。 该方法包括:在每个源车辆处,发起分组流,标记具有目的地坐标和当前位置的分组,以及转发分组流,并且在每个交叉路口选择一个头部车辆,计算积压指示符并用矩阵收听广播 和延迟信息,如果矩阵存在,则根据积压指示符更新矩阵,否则初始化矩阵,转发分组流,以及从头部车辆广播矩阵。 在一个实施例中,基于随机倒计时和车辆ID执行头部车辆的选择。 该方法收敛到最优(最低等待时间)状态,而与网络的起始起始点无关,并且即使网络条件发生变化,也继续趋向于最佳状态。
    • 4. 发明申请
    • ARCHITECTURE AND METHOD FOR REALISTIC VEHICULAR NETWORKING AND APPLICATIONS VISUALIZATION
    • 现实的车辆网络结构和应用可视化的架构和方法
    • US20120197618A1
    • 2012-08-02
    • US13015544
    • 2011-01-27
    • Marcus PangWai ChenJasmine Chennikara-VargheseYibei LingRama VuyyuruJunichiro Fukuyama
    • Marcus PangWai ChenJasmine Chennikara-VargheseYibei LingRama VuyyuruJunichiro Fukuyama
    • G06G7/76
    • G01C21/26G08G1/0133G08G1/096775
    • A system and method for vehicular networking and applications visualization comprises selecting a simulation area, converting the selected simulation area to graph representation, eliminating streets outside the simulation area, generating, using the graph representation, vehicles and random vehicle traffic in the simulation area, calculating vehicle movement in coordinates, transforming the calculated coordinates into a format compatible with a general purpose communication networking simulation tool, simulating, using the transformed calculated coordinates and the general purpose communication networking simulation tool, an application, and performing visualization of the simulation. The application can be local traffic information, the vehicle movement and communication among the vehicles. The simulation can be at least 2000 seconds and communication can be disruption tolerant. The visualization of the simulation can comprise a global view of all vehicles and one or more local views, each local view of one vehicle. The simulation area can be selected from a geographic map.
    • 一种用于车辆网络和应用可视化的系统和方法,包括选择仿真区域,将所选择的仿真区域转换为图形表示,消除模拟区域外的街道,在模拟区域中使用图形表示,车辆和随机车辆交通,计算 将坐标转换为与通用通信网络仿真工具兼容的格式,使用变换的计算坐标和通用通信网络仿真工具,应用程序,以及进行模拟的可视化。 该应用可以是本地交通信息,车辆运动和车辆之间的通信。 模拟可以至少为2000秒,通信可以容忍中断。 模拟的可视化可以包括所有车辆的全局视图和一个或多个局部视图,一个车辆的每个局部视图。 模拟区域可以从地理图中选择。
    • 7. 发明授权
    • Architecture, method, and program for generating realistic vehicular mobility patterns
    • 用于生成逼真的车辆移动模式的架构,方法和程序
    • US08894413B2
    • 2014-11-25
    • US12887824
    • 2010-09-22
    • Marcus PangWai ChenJasmine Chennikara-VargheseRatul GuhaJohn LeeRama VuyyuruJunichiro Fukuyama
    • Marcus PangWai ChenJasmine Chennikara-VargheseRatul GuhaJohn LeeRama VuyyuruJunichiro Fukuyama
    • G09B9/02
    • G09B9/02
    • A method, simulator and program for simulating vehicular movement based upon user input parameters related to simulation topology and simulation vehicles including, but not limited to linear vehicular density. The simulator generates the simulation topology having a simulation area using the user input parameters, places a plurality of simulation vehicles within the simulation area at an initial placement using at least two input parameters related to simulation vehicle and the generated simulation topology; and determines movement of the plurality of simulation vehicles starting with the initial placement using a plurality of movement models. Each of the plurality of simulation vehicles has mobility characteristics generated using the plurality of movement models. When vehicle moves outside the simulation area, the vehicle re-emerges at a location within the simulation area. The vehicle re-emerges with new movement characteristics.
    • 一种用于模拟车辆运动的方法,模拟器和程序,其基于与仿真拓扑和模拟车辆相关的用户输入参数,包括但不限于线性车辆密度。 模拟器使用用户输入参数生成具有模拟区域的模拟拓扑,使用与模拟车辆和所生成的仿真拓扑有关的至少两个输入参数,将模拟区域内的多个模拟车辆放置在初始位置; 并且使用多个运动模型来确定从初始放置开始的多个模拟车辆的运动。 多个模拟车辆中的每一个具有使用多个运动模型产生的移动特性。 当车辆移动到模拟区域外时,车辆重新出现在模拟区域内的一个位置。 车辆重新出现了新的运动特征。
    • 9. 发明申请
    • Program and Method for Adaptive Mobile Ad-Hoc Wireless Communication
    • 自适应移动无线通信的程序和方法
    • US20110006913A1
    • 2011-01-13
    • US12500685
    • 2009-07-10
    • Wai ChenJasmine Chennikara-VargheseTaek-Jin KwonRyokichi OnishiRama Vuyyuru
    • Wai ChenJasmine Chennikara-VargheseTaek-Jin KwonRyokichi OnishiRama Vuyyuru
    • G08G1/00
    • G08G1/161
    • A method of controlling a wireless communication device that is installed in a moving vehicle. The method comprises receiving roadway topology information and vehicle traffic pattern information, receiving vehicle and wireless communication device performance information from a plurality of other moving vehicles, determining current position information for the moving vehicle; determining a first set of metrics for a performance of the wireless communication device installed in the moving vehicle, estimating at least one second metric related to the performance of the wireless communication device or an ad-hoc network which includes each wireless communication device and changing an operation or routing parameter for the wireless communication device based upon the estimation. The second metric is based upon at least a sub-set of the first set of metrics, the received information and the determined current position information for the moving vehicle.
    • 一种控制安装在移动车辆中的无线通信装置的方法。 该方法包括接收道路拓扑信息和车辆交通模式信息,从多个其他移动车辆接收车辆和无线通信设备性能信息,确定移动车辆的当前位置信息; 确定用于安装在所述移动车辆中的所述无线通信设备的性能的第一组度量,估计与所述无线通信设备的性能相关的至少一个第二度量,或包括每个无线通信设备的ad-hoc网络,以及改变 基于估计的无线通信设备的操作或路由参数。 第二度量基于至少第一组度量的子集,所接收的信息和用于移动车辆的所确定的当前位置信息。