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10 条记录 (耗时 0.018 秒)

    Method and apparatus for adaptive bandwidth reservation in wireless ad-hoc networks
    1.
    发明授权
    Method and apparatus for adaptive bandwidth reservation in wireless ad-hoc networks 失效
    无线自组织网络中自适应带宽预留的方法和装置

    公开(公告)号：US06665311B2

    公开(公告)日：2003-12-16

    申请号：US10007321

    申请日：2001-11-09

    申请人： George Kondylis ,  Bong K. Ryu ,  Mahesh Marina ,  Ulas Kozat

    发明人： George Kondylis ,  Bong K. Ryu ,  Mahesh Marina ,  Ulas Kozat

    IPC分类号： H04J1228

    CPC分类号： H04W28/16 ,  H04W28/26 ,  H04W72/0406 ,  H04W74/0816 ,  H04W84/18

    摘要： An apparatus, a method, and a computer program product for effective communication routing of unicast and broadcast data traffic in wireless ad-hoc networks are presented. The routing technique separates the signaling and data transmission portions of a data frame such that the length of the signaling portion is independent of the length of the data portion. In the signaling portion, reservations are able to be performed and confirmed, while the data portion also includes a reservation confirmation portion which allows reservations made in during the signaling portion of the frame to be confirmed immediately prior to transmission of the data. In addition, the present invention also provides a mechanism for dynamically adjusting reservations.

    摘要翻译： 提出了一种用于无线自组织网络中的单播和广播数据业务的有效通信路由的装置，方法和计算机程序产品。 路由技术分离数据帧的信令和数据传输部分，使得信令部分的长度与数据部分的长度无关。 在信令部分中，可以执行和确认预约，而数据部分还包括允许在数据发送之前立即确认在帧的信令部分期间作出的预约的预约确认部分。 此外，本发明还提供了一种用于动态调整预约的机制。

    Network protocol for wireless ad hoc networks
    5.
    发明授权
    Network protocol for wireless ad hoc networks 有权
    无线自组织网络的网络协议

    公开(公告)号：US06791949B1

    公开(公告)日：2004-09-14

    申请号：US09561399

    申请日：2000-04-28

    申请人： Bong K. Ryu ,  Jason C. Erickson ,  James X. Smallcomb ,  Son K. Dao

    发明人： Bong K. Ryu ,  Jason C. Erickson ,  James X. Smallcomb ,  Son K. Dao

    IPC分类号： H04Q720

    CPC分类号： H04W84/18 ,  H04W88/04

    摘要： A method for establishing and maintaining a wireless ad hoc network comprising backbone nodes which forward packets through the network and non-backbone nodes which are capable of using the network, but do not forward packets. Signaling packets containing one or more protocol support records are periodically generated and transmitted by each node to neighboring nodes and are forwarded through the network by backbone nodes. Non-network nodes are initially selected to become backbone members during a SELECTION process based on an assessment of the node's connectivity relative to its neighbors. Link quality between nodes is monitored and used during an EXPANSION process in which additional non-network nodes may become backbone members. Disconnected backbone segments are interconnected during a CONNECTION process and the network is maintained during a MAINTENANCE process by periodically assessing the value of a backbone node's membership in the backbone. Efficient multicast routing is supported over the backbone by dynamically establishing and maintaining multicast trees. Signaling packets are periodically and frequently generated, thereby facilitating rapid adaptation to network changes. Further, the signaling packets are efficiently forwarded only by backbone nodes, thereby reducing bandwidth associated with establishing and maintaining the network.

    摘要翻译： 一种用于建立和维护无线自组织网络的方法，所述无线自组织网络包括骨干节点，所述骨干节点通过网络转发分组，并且能够使用网络，但不转发分组。 周期性地生成包含一个或多个协议支持记录的信令分组，并由每个节点发送到相邻节点，并由骨干节点通过网络转发。 基于对节点相对于其邻居的连接性的评估，最初选择非网络节点在SELECTION进程期间成为骨干成员。 在扩展过程中监视和使用节点之间的链路质量，其中附加的非网络节点可能成为骨干成员。 断开的骨干段在连接过程中互连，并且在MAINTENANCE过程期间通过周期性地评估主干节点在骨干网中的成员资格的值来维护网络。 通过动态建立和维护组播树，在骨干网上支持高效的组播路由。 定期和频繁地生成信令分组，从而有助于快速适应网络变化。 此外，信令分组仅由骨干节点有效地转发，从而减少与建立和维护网络相关联的带宽。

    System and method for an energy efficient RF transceiver
    6.
    发明授权
    System and method for an energy efficient RF transceiver 有权
    节能射频收发器的系统和方法

    公开(公告)号：US08483649B2

    公开(公告)日：2013-07-09

    申请号：US12153424

    申请日：2008-05-19

    申请人： Harry Lee ,  Fred E. Schader ,  Bong K. Ryu ,  Liangping Ma ,  Hua Zhu

    发明人： Harry Lee ,  Fred E. Schader ,  Bong K. Ryu ,  Liangping Ma ,  Hua Zhu

    IPC分类号： H04B1/16 ,  H04W52/02

    CPC分类号： H04W52/0229 ,  H04W52/029 ,  Y02D70/00

    摘要： An energy efficient radio having a clocking system utilizing two clocks with very different precision and power characteristics. In another aspect, the time that a radio spends on listening/receiving is optimized so that energy is not wasted when there is no need to keep receiving. In another aspect, to further improve the energy efficiency, two receive portions with drastic difference in power consumption, instead of a single receive portion as is used in a typical wireless receiver, and are used to process different parts of a received packet.

    摘要翻译： 一种节能无线电，具有利用两个具有非常不同精度和功率特性的时钟的计时系统。 在另一方面，无线电在收听时花费的时间被优化，使得当不需要继续接收时，能量不被浪费。 在另一方面，为了进一步提高能量效率，两个接收部分具有功率消耗的巨大差异，而不是像典型的无线接收机中使用的单个接收部分，并且被用于处理接收的分组的不同部分。

    System and method for an energy efficient RF transceiver
    7.
    发明申请
    System and method for an energy efficient RF transceiver 有权
    节能射频收发器的系统和方法

    公开(公告)号：US20080304432A1

    公开(公告)日：2008-12-11

    申请号：US12153424

    申请日：2008-05-19

    申请人： Harry Lee ,  Fred E. Schader ,  Bong K. Ryu ,  Liangping Ma ,  Hua Zhu

    发明人： Harry Lee ,  Fred E. Schader ,  Bong K. Ryu ,  Liangping Ma ,  Hua Zhu

    IPC分类号： G08C17/00

    CPC分类号： H04W52/0229 ,  H04W52/029 ,  Y02D70/00

    摘要： An energy efficient radio having a clocking system utilizing two clocks with very different precision and power characteristics. In another aspect, the time that a radio spends on listening/receiving is optimized so that energy is not wasted when there is no need to keep receiving. In another aspect, to further improve the energy efficiency, two receive portions with drastic difference in power consumption, instead of a single receive portion as is used in a typical wireless receiver, and are used to process different parts of a received packet.

    摘要翻译： 一种节能无线电，具有利用两个具有非常不同精度和功率特性的时钟的计时系统。 在另一方面，无线电在收听时花费的时间被优化，使得当不需要继续接收时，能量不被浪费。 在另一方面，为了进一步提高能量效率，两个接收部分具有功率消耗的巨大差异，而不是像典型的无线接收机中使用的单个接收部分，并且被用于处理接收的分组的不同部分。

    System and method for clock modeling in discrete-event simulation
    8.
    发明申请
    System and method for clock modeling in discrete-event simulation 有权
    离散事件仿真中时钟建模的系统和方法

    公开(公告)号：US20090119086A1

    公开(公告)日：2009-05-07

    申请号：US12213118

    申请日：2008-06-13

    申请人： Hua Zhu ,  Liangping Ma ,  Bong K. Ryu

    发明人： Hua Zhu ,  Liangping Ma ,  Bong K. Ryu

    IPC分类号： G06F17/50

    CPC分类号： G06F17/5009 ,  G06F2217/10 ,  G06F2217/62

    摘要： Local clock modeling for a discrete event simulator is described. A local clock generator provides realistic clock characteristics in terms of clock precision and clock drift and clock mapping utilities provide API for other modules and/or protocols in the discrete event simulator to schedule events on local clocks instead of global clock of the simulator.

    摘要翻译： 描述了离散事件模拟器的本地时钟建模。 本地时钟发生器在时钟精度和时钟漂移方面提供逼真的时钟特性，时钟映射实用程序为离散事件仿真器中的其他模块和/或协议提供API，以在本地时钟上调度事件，而不是模拟器的全局时钟。