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    ARCHITECTURE, METHOD, AND PROGRAM FOR GENERATING REALISTIC VEHICULAR MOBILITY PATTERNS
    3.
    发明公开
    ARCHITECTURE, METHOD, AND PROGRAM FOR GENERATING REALISTIC VEHICULAR MOBILITY PATTERNS 审中-公开
    架构，方法和程序创建真实的车辆运动PATTERN

    公开(公告)号：EP2619709A1

    公开(公告)日：2013-07-31

    申请号：EP11827158.4

    申请日：2011-08-17

    申请人： Telcordia Technologies, Inc. ,  Toyota Info Technology Center U.S.A., Inc.

    发明人： PANG, Marcus ,  CHEN, Wai ,  CHENNIKARA-VARGHESE, Jasmine ,  GUHA, Ratul ,  LEE, John ,  VUYYURU, Rama ,  FUKUYAMA, Junichiro

    IPC分类号： G06G7/48

    CPC分类号： G09B9/02

    摘要： 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.

    ACHIEVING HIGH-RATE MULTI-HOP DATA DELIVERY IN VEHICULAR NETWORKS
    7.
    发明公开
    ACHIEVING HIGH-RATE MULTI-HOP DATA DELIVERY IN VEHICULAR NETWORKS 有权
    制作一个多跳数据输出，高吞吐量车载网络

    公开(公告)号：EP2342852A1

    公开(公告)日：2011-07-13

    申请号：EP09815321.6

    申请日：2009-09-21

    申请人： Telcordia Technologies, Inc.

    发明人： GUHA, Ratul, K. ,  CHEN, Wai ,  DEMERS, Stephanie ,  CHENNIKARA-VARGHESE, Jasmine

    IPC分类号： H04J3/24

    CPC分类号： H04L45/00 ,  H04L45/02 ,  H04L45/125 ,  H04L45/44 ,  H04L67/12

    摘要： 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.

    DISTRIBUTED REUEST ROUTING
    8.
    发明公开
    DISTRIBUTED REUEST ROUTING 有权
    分布式REUEST路由

    公开(公告)号：EP1782231A2

    公开(公告)日：2007-05-09

    申请号：EP05729897.8

    申请日：2005-03-24

    申请人： Telcordia Technologies, Inc. ,  Toyota Infotechnology Center Co., Ltd.

    发明人： CHEN, Chung-Min ,  CHEN, Wai ,  LING, Yibei ,  PANG, Marcus ,  CAI, Shengwei

    IPC分类号： G06F15/16

    CPC分类号： H04L47/10 ,  H04L47/125

    摘要： A plurality of servers (802, 204, 202, 203) for processing client (210) requests (220, 222, 810) forward the requests (220, 222, 810) among themselves to achieve a balanced load. When a server (802, 204, 202, 203) initially receives a client request (220, 222, 810), it randomly selects another of the plurality of servers (802, 204, 202, 203), referred to as a first-chance server, and forwards the request (220, 222, 810) to this server. Upon receiving the request, the first-chance server determines if it is overloaded and if not, process the request. However, if overloaded, the first-chance server compares its load to the load of one or more predetermined next-neighbor servers. If the next-neighbor server(s) are more loaded than the first-chance server, the first-chance server processes the request. Otherwise, the first-chance server forwards the request to the least loaded next-neighbor server. The next-neighbor receiving the request either processes it directly, or alternatively, based on its current load and that of its next-neighbor server(s), forwards the reques to another next-neighbor server for processing.

    AN INTERFERENCE-ADAPTIVE UWB RADIO-BASED VEHICLE COMMUNICATION SYSTEM FOR ACTIVE-SAFETY
    10.
    发明公开
    AN INTERFERENCE-ADAPTIVE UWB RADIO-BASED VEHICLE COMMUNICATION SYSTEM FOR ACTIVE-SAFETY 审中-公开
    干扰自适应UWB基于无线技术的车载通信系统主动安全

    公开(公告)号：EP2556359A1

    公开(公告)日：2013-02-13

    申请号：EP11766701.4

    申请日：2011-04-07

    申请人： Telcordia Technologies, Inc.

    发明人： GUHA, Ratul, K. ,  CHEN, Wai

    IPC分类号： G01M17/00

    CPC分类号： H04B1/719 ,  G08G1/161

    摘要： A system and method for increasing transmission concurrency amongst communicating vehicles using UWB radio-based communication is presented. The method comprises dividing an area around a sending vehicle into transmission areas, and, for each transmission area, broadcasting a message from the sending vehicle, waiting for a time, and when a not clear to send response is not received, sending information to the transmission area, and the information being sent using a time-hopping sequence based on a location and seed in the message. The message can also have a frame length and a target region. The method can also comprise determining, when a no- send is received, whether the no-send was in response to the message from the sending vehicle, and when the no- send is not in response to the message from the sending vehicle, sending the information to the transmission area. The system and method can be used for active-safety vehicle communication.