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1. 发明授权

US08761175B2 Distributed method for minimum delay multi-hop data delivery in vehicular networks 有权
标题翻译：车载网络中最小延迟多跳数据传输的分布式方法
公开(公告)号：US08761175B2
公开(公告)日：2014-06-24
申请号：US12408221
申请日：2009-03-20
申请人： Ratul K. Guha , Wai Chen , Stephanie Demers , Jasmine Chennikara-Varghese
发明人： Ratul K. Guha , Wai Chen , Stephanie Demers , Jasmine Chennikara-Varghese
IPC分类号： H04L12/28 , H04J3/16 , G06F15/173
CPC分类号： G08G1/161 , H04L2012/40273 , H04W40/20
摘要： 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.
摘要翻译：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，并且在每个交点处，选择头部车辆，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。

2. 发明申请

US20100074114A1 Achieving High-Rate Multi-Hop Data Delivery in Vehicular Networks 有权
标题翻译：实现车载网络中的高速多跳数据传输
公开(公告)号：US20100074114A1
公开(公告)日：2010-03-25
申请号：US12563420
申请日：2009-09-21
申请人： Ratul K. Guha , Wai Chen , Jasmine Chennikara-Varghese , Stephanie Demers
发明人： Ratul K. Guha , Wai Chen , Jasmine Chennikara-Varghese , Stephanie Demers
IPC分类号： H04L12/26 , H04W4/00
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.
摘要翻译：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。

3. 发明授权

US08169897B2 Achieving high-rate multi-hop data delivery in vehicular networks 有权
标题翻译：在车载网络中实现高速多跳数据传输
公开(公告)号：US08169897B2
公开(公告)日：2012-05-01
申请号：US12563420
申请日：2009-09-21
申请人： Ratul K. Guha , Wai Chen , Jasmine Chennikara-Varghese , Stephanie Demers
发明人： Ratul K. Guha , Wai Chen , Jasmine Chennikara-Varghese , Stephanie Demers
IPC分类号： H04J1/16
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.
摘要翻译：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。

4. 发明申请

US20090238187A1 Distributed Method for Minimum Delay Multi-Hop Data Delivery in Vehicular Networks 有权
标题翻译：车载网络中最小延迟多跳数据传送的分布式方法
公开(公告)号：US20090238187A1
公开(公告)日：2009-09-24
申请号：US12408221
申请日：2009-03-20
申请人： Ratul K. Guha , Wai Chen , Jasmine Chennikara-Varghese , Stephanie Demers
发明人： Ratul K. Guha , Wai Chen , Jasmine Chennikara-Varghese , Stephanie Demers
IPC分类号： H04L12/56
CPC分类号： G08G1/161 , H04L2012/40273 , H04W40/20
摘要： 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.
摘要翻译：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。

5. 发明申请

US20120093015A1 Systems and Methods for Multi-Beam Optic-Wireless Vehicle Communications 有权
标题翻译：多光束无线车辆通信系统与方法
公开(公告)号：US20120093015A1
公开(公告)日：2012-04-19
申请号：US13276375
申请日：2011-10-19
申请人： Wai Chen , John Lee , Ratul K. Guha , Ryokichi Onishi , Rama Vuyyuru
发明人： Wai Chen , John Lee , Ratul K. Guha , Ryokichi Onishi , Rama Vuyyuru
IPC分类号： H04W24/00 , H04L12/26 , H04W92/00 , H04B7/00 , H04L12/02
CPC分类号： H04L45/48 , H04W4/06 , H04W4/90 , H04W40/06 , H04W76/50 , H04W84/18
摘要： The present invention offers systems and methods for effective multiple-hop routing, multicasting and media access control for vehicle group communications that employ directional wireless radio technology. Multi-beam optic-wireless media and streamlined operations provide low-overhead communications among vehicles. Systems and methods are provided to maintain a quasi-stationary group of neighboring vehicles, enable high-throughput on-demand switching among multiple vehicles, enable group coding in the vehicle group to achieve higher throughput, and enable dynamic adjustment of link to maintain desirable vehicle group. The proposed solution builds upon the conception of a MAC-free wireless operation and quasi-stationary vehicular switched network to achieve ultra-low-overhead and high-throughput vehicle communications.
摘要翻译：本发明提供了采用定向无线电技术的用于车载组通信的有效多跳路由，组播和媒体访问控制的系统和方法。多光束无线介质和简化的操作在车辆之间提供低开销的通信。提供系统和方法以维持相邻车辆的准静止组，使得能够在多个车辆之间实现高吞吐量按需切换，使得车辆组中的组编码能够实现更高的吞吐量，并且能够动态调整链路以维持所需的车辆组。所提出的解决方案建立在无MAC无线操作和准静态车载交换网络的概念基础上，以实现超低开销和高吞吐量车辆通信。

6. 发明授权

US08068463B2 Systems and methods for multi-beam optic-wireless vehicle communications 有权
标题翻译：多光束无线车辆通信的系统和方法
公开(公告)号：US08068463B2
公开(公告)日：2011-11-29
申请号：US12178338
申请日：2008-07-23
申请人： Wai Chen , John Lee , Ratul K. Guha , Ryokichi Onishi , Rama Vuyyuru
发明人： Wai Chen , John Lee , Ratul K. Guha , Ryokichi Onishi , Rama Vuyyuru
IPC分类号： H04W4/00 , H04L12/28 , H04L12/56 , H04B7/00 , G06F15/16
CPC分类号： H04L45/48 , H04W4/06 , H04W4/90 , H04W40/06 , H04W76/50 , H04W84/18
摘要： The present invention offers systems and methods for effective multiple-hop routing, multicasting and media access control for vehicle group communications that employ directional wireless radio technology. Multi-beam optic-wireless media and streamlined operations provide low-overhead communications among vehicles. Systems and methods are provided to maintain a quasi-stationary group of neighboring vehicles, enable high-throughput on-demand switching among multiple vehicles, enable group coding in the vehicle group to achieve higher throughput, and enable dynamic adjustment of link to maintain desirable vehicle group. The proposed solution builds upon the conception of a MAC-free wireless operation and quasi-stationary vehicular switched network to achieve ultra-low-overhead and high-throughput vehicle communications.
摘要翻译：本发明提供了采用定向无线电技术的用于车载组通信的有效多跳路由，组播和媒体访问控制的系统和方法。多光束无线介质和简化的操作在车辆之间提供低开销的通信。提供系统和方法以维持相邻车辆的准静止组，使得能够在多个车辆之间实现高吞吐量按需切换，使得车辆组中的组编码能够实现更高的吞吐量，并且能够动态调整链路以维持所需的车辆组。所提出的解决方案建立在无MAC无线操作和准静态车载交换网络的概念基础上，以实现超低开销和高吞吐量车辆通信。

7. 发明申请

US20090310608A1 Systems and Methods for Multi-Beam Optic-Wireless Vehicle Communications 有权
标题翻译：多光束无线车辆通信系统与方法
公开(公告)号：US20090310608A1
公开(公告)日：2009-12-17
申请号：US12178338
申请日：2008-07-23
申请人： Wai Chen , John Lee , Ratul K. Guha , Ryokichi Onishi , Rama Vuyyuru
发明人： Wai Chen , John Lee , Ratul K. Guha , Ryokichi Onishi , Rama Vuyyuru
IPC分类号： H04L12/56
CPC分类号： H04L45/48 , H04W4/06 , H04W4/90 , H04W40/06 , H04W76/50 , H04W84/18
摘要： The present invention offers systems and methods for effective multiple-hop routing, multicasting and media access control for vehicle group communications that employ directional wireless radio technology. Multi-beam optic-wireless media and streamlined operations provide low-overhead communications among vehicles. Systems and methods are provided to maintain a quasi-stationary group of neighboring vehicles, enable high-throughput on-demand switching among multiple vehicles, enable group coding in the vehicle group to achieve higher throughput, and enable dynamic adjustment of link to maintain desirable vehicle group. The proposed solution builds upon the conception of a MAC-free wireless operation and quasi-stationary vehicular switched network to achieve ultra-low-overhead and high-throughput vehicle communications.
摘要翻译：本发明提供了采用定向无线电技术的用于车载组通信的有效多跳路由，组播和媒体访问控制的系统和方法。多光束无线介质和简化的操作在车辆之间提供低开销的通信。提供系统和方法以维持相邻车辆的准静止组，使得能够在多个车辆之间实现高吞吐量按需切换，使得车辆组中的组编码能够实现更高的吞吐量，并且能够动态调整链路以维持所需的车辆组。所提出的解决方案建立在无MAC无线操作和准静态车载交换网络的概念基础上，以实现超低开销和高吞吐量车辆通信。

8. 发明申请

US20110250836A1 INTERFERENCE-ADAPTIVE UWB RADIO-BASED VEHICLE COMMUNICATION SYSTEM FOR ACTIVE-SAFETY 审中-公开
标题翻译：用于主动安全的干扰自适应UWB无线电车辆通信系统
公开(公告)号：US20110250836A1
公开(公告)日：2011-10-13
申请号：US12757078
申请日：2010-04-09
申请人： Ratul K. Guha , Wai Chen
发明人： Ratul K. Guha , Wai Chen
IPC分类号： H04B7/24
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.
摘要翻译：提出了一种在使用UWB无线电通信的通信车辆中增加传输并发性的系统和方法。该方法包括将发送车辆周围的区域划分为传输区域，并且对于每个传输区域，从发送车辆广播消息，等待一段时间，并且当未收到不明确的发送响应时，向发送区域，以及使用基于消息中的位置和种子的跳时序列发送的信息。消息还可以具有帧长度和目标区域。该方法还可以包括确定何时收到不发送是否响应于来自发送车辆的消息，并且当不发送不响应于来自发送车辆的消息时，发送信息传输到区域。该系统和方法可用于主动安全车辆通信。

9. 发明申请

US20100309823A1 FULL-DUPLEX WIRELESS COMMUNICATION USING A SINGLE TRANSMITTER 有权
标题翻译：全双工无线通信使用单个发射机
公开(公告)号：US20100309823A1
公开(公告)日：2010-12-09
申请号：US12700123
申请日：2010-02-04
申请人： Ratul K. Guha , Wai Chen
发明人： Ratul K. Guha , Wai Chen
IPC分类号： H04B7/005 , H04W72/04 , H04W4/00
CPC分类号： H04B7/0608 , H04B7/0689 , H04B7/0691
摘要： A system for fall-duplex communication using a single transmitter is presented. The system comprises a base station with a signal and data processor, peripheral detectors each placed at a distance from the transmitting antenna, and a mobile device having at least a dipole antenna having a switch and a loop antenna having a switch, wherein the sending device modulates the shorting state, i.e., the electromagnetic configuration, of the wire and coil antennas using the switches, the modulating resulting in alteration in load at the base station. This alteration can be calculated based on input from the transmitting antenna and the detectors, each input having time coding. The input from the transmitting antenna can be magnitude of propagated signal and the input from each detector can comprise a quantified signal level and the quantified signal level time-delayed by propagation time. The detectors can be peripheral signal level detecting antennas.
摘要翻译：提出了一种使用单个发射机进行全双工通信的系统。该系统包括具有信号和数据处理器的基站，每个远离发送天线的外围检测器，以及至少具有开关的偶极子天线和具有开关的环形天线的移动设备，其中发送设备使用开关调制线圈和线圈天线的短路状态，即电磁配置，调制导致基站的负载发生变化。可以基于来自发射天线和检测器的输入来计算该改变，每个输入具有时间编码。来自发射天线的输入可以是传播信号的幅度，并且来自每个检测器的输入可以包括量化的信号电平和由传播时间延迟的量化的信号电平。检测器可以是外围信号电平检测天线。

10. 发明授权

US08199683B2 Full-duplex wireless communication using a single transmitter 有权
标题翻译：使用单个发射机的全双工无线通信
公开(公告)号：US08199683B2
公开(公告)日：2012-06-12
申请号：US12700123
申请日：2010-02-04
申请人： Ratul K. Guha , Wai Chen
发明人： Ratul K. Guha , Wai Chen
IPC分类号： H04B7/005
CPC分类号： H04B7/0608 , H04B7/0689 , H04B7/0691
摘要： A system for fall-duplex communication using a single transmitter is presented. The system comprises a base station with a signal and data processor, peripheral detectors each placed at a distance from the transmitting antenna, and a mobile device having at least a dipole antenna having a switch and a loop antenna having a switch, wherein the sending device modulates the shorting state, i.e., the electromagnetic configuration, of the wire and coil antennas using the switches, the modulating resulting in alteration in load at the base station. This alteration can be calculated based on input from the transmitting antenna and the detectors, each input having time coding. The input from the transmitting antenna can be magnitude of propagated signal and the input from each detector can comprise a quantified signal level and the quantified signal level time-delayed by propagation time. The detectors can be peripheral signal level detecting antennas.
摘要翻译：提出了一种使用单个发射机进行全双工通信的系统。该系统包括具有信号和数据处理器的基站，每个远离发送天线的外围检测器，以及至少具有开关的偶极子天线和具有开关的环形天线的移动设备，其中发送设备使用开关调制线圈和线圈天线的短路状态，即电磁配置，调制导致基站的负载发生变化。可以基于来自发射天线和检测器的输入来计算该改变，每个输入具有时间编码。来自发射天线的输入可以是传播信号的幅度，并且来自每个检测器的输入可以包括量化的信号电平和由传播时间延迟的量化的信号电平。检测器可以是外围信号电平检测天线。

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