Apparatus and method for multicasting data in a communication network
    41.
    发明授权
    Apparatus and method for multicasting data in a communication network 有权
    在通信网络中组播数据的装置和方法

    公开(公告)号:US08514861B2

    公开(公告)日:2013-08-20

    申请号:US11324483

    申请日:2006-01-03

    IPC分类号: H04L12/56

    摘要: Techniques are provided for providing information to a group of nodes over a medium. Before transmitting information to the group of nodes, a source can analyze factors to determine transmission reliability of a first transmission technique and a second transmission technique and generate an analysis result. Based on the result of this analysis, the source can select one of the first transmission technique and the second transmission technique for providing the information to the group of nodes over the medium.

    摘要翻译: 提供了用于通过介质向一组节点提供信息的技术。 在将信息发送到节点组之前,源可以分析因素来确定第一传输技术和第二传输技术的传输可靠性并产生分析结果。 基于该分析的结果,源可以选择第一传输技术和第二传输技术之一,以将信息提供给介质上的节点组。

    Optimizing positions of time slots in a hybrid time division multiple access (TDMA)-carrier sense multiple access (CSMA) medium access control (MAC) for multi-hop ad hoc networks
    42.
    发明授权
    Optimizing positions of time slots in a hybrid time division multiple access (TDMA)-carrier sense multiple access (CSMA) medium access control (MAC) for multi-hop ad hoc networks 有权
    在多跳自组织网络的混合时分多址(TDMA)载波多址接入(CSMA)媒体接入控制(MAC)中优化时隙的位置

    公开(公告)号:US08320321B2

    公开(公告)日:2012-11-27

    申请号:US11767171

    申请日:2007-06-22

    IPC分类号: H04W4/00

    摘要: A hybrid TDMA-CSMA MAC protocol is provided for allocating time slots within a frame having a structure in which transmission time is divided into a first number of actual TDMA time slots and a second number of “virtual” CSMA time slots. Each time a given node receives a Hello message, it can calculate variables based on an HSN field. A ratio of the first number to the second number can be dynamically adjusted depending upon the traffic conditions. When TDMA time slots within the frame are freed (e.g., no longer being used), slot position optimization techniques are provided for moving these freed TDMA time slots back into the CSMA portion of the frame and reallocating or moving other TDMA time slots into the portion of the frame that was previously occupied by the freed TDMA time slots to thereby maximize resource utilization.

    摘要翻译: 提供混合TDMA-CSMA MAC协议用于在具有传输时间被划分为第一数量的实际TDMA时隙和第二数量的虚拟CSMA时隙的结构的帧内分配时隙。 每次给定节点接收到一个Hello消息时,它可以根据HSN字段计算变量。 可以根据交通状况来动态地调整第一数量与第二数量的比率。 当帧内的TDMA时隙被释放(例如,不再被使用)时,提供时隙位置优化技术,用于将这些释放的TDMA时隙移回到帧的CSMA部分,并将其他TDMA时隙重新分配或移动到该部分中 先前被释放的TDMA时隙占据的帧,从而最大化资源利用率。

    System and method for distributing proxying error information in wireless networks
    43.
    发明授权
    System and method for distributing proxying error information in wireless networks 有权
    在无线网络中分发代理错误信息的系统和方法

    公开(公告)号:US07894408B2

    公开(公告)日:2011-02-22

    申请号:US11383042

    申请日:2006-05-12

    IPC分类号: H04W4/00

    摘要: A system and method for distributing proxying error information in wireless networks is provided. The includes associating a proxy node with a non-routable node; sending a data packet from an initiator node to the proxy node for delivery to the non-routable node; determining by the proxy node that the non-routable device has disassociated from the proxy node; sending a proxy error message from the proxy node to the initiator node to inform the initiator node that the non-routable node is no longer proxied by the proxy node; and starting a route discovery process for the non-routable device by the initiator node.

    摘要翻译: 提供了一种用于在无线网络中分发代理错误信息的系统和方法。 包括将代理节点与不可路由的节点相关联; 将数据分组从发起者节点发送到代理节点,以传送到不可路由节点; 由所述代理节点确定所述不可路由设备已经从所述代理节点取消关联; 从所述代理节点向所述发起方节点发送代理错误消息以通知所述发起方节点所述不可路由节点不再被所述代理节点代理; 以及由发起者节点启动不可路由设备的路由发现过程。

    System and method for providing a congestion-aware routing metric for selecting a route between nodes in a multihopping communication network
    44.
    发明授权
    System and method for providing a congestion-aware routing metric for selecting a route between nodes in a multihopping communication network 有权
    用于提供用于选择多行通信网络中的节点之间的路由的拥塞感知路由度量的系统和方法

    公开(公告)号:US07609641B2

    公开(公告)日:2009-10-27

    申请号:US11268102

    申请日:2005-11-07

    IPC分类号: G01R31/08 H04W4/00

    摘要: A system and method for calculating a routing metric that can select the route providing the best throughput in a multihopping network (100), based on one or more parameters including completion rates, data rates, MAC overhead and congestion. The system and method are capable of selecting a route in a multihopping network (100) having a high throughput, comprising calculating a routing metric at one or more nodes (102, 106, 107), wherein the routing metric enables the one or more nodes (102, 106, 107) to select the route in the network (100). The routing metric can include network information such as the raw data rate, the completion rate, and the media access control overhead and congestion.

    摘要翻译: 一种用于计算路由度量的系统和方法,所述路由度量可以基于包括完成率,数据速率,MAC开销和拥塞在内的一个或多个参数来选择在多行业网络(100)中提供最佳吞吐量的路由。 所述系统和方法能够选择具有高吞吐量的多行业网络(100)中的路由,包括计算一个或多个节点(102,106,107)处的路由度量,其中所述路由度量允许所述一个或多个节点 (102,106,107)以选择网络(100)中的路由。 路由度量可以包括诸如原始数据速率,完成率和媒体访问控制开销和拥塞的网络信息。

    System and method for detecting node mobility based on network topology changes in a wireless communication network
    45.
    发明授权
    System and method for detecting node mobility based on network topology changes in a wireless communication network 有权
    基于无线通信网络中的网络拓扑变化来检测节点移动性的系统和方法

    公开(公告)号:US07447174B2

    公开(公告)日:2008-11-04

    申请号:US11329239

    申请日:2006-01-10

    申请人: Avinash Joshi

    发明人: Avinash Joshi

    IPC分类号: H04Q7/28

    CPC分类号: H04W40/14 H04W40/24

    摘要: Techniques are provided for determining mobility of a first node in an ad hoc network. A particular node generates a fixed neighbor node table comprising second nodes in the area of the particular node which are not mobile. The particular node can monitor changes between the first node and the second nodes, and then determine if the first node is mobile based on the changes.

    摘要翻译: 提供了用于确定自组织网络中的第一节点的移动性的技术。 特定节点生成固定的邻居节点表,该表包括特定节点的不是移动的区域中的第二节点。 特定节点可以监视第一节点和第二节点之间的变化,然后基于变化确定第一节点是否是移动的。

    SYSTEM AND METHOD FOR DISTRIBUTING PROXYING ERROR INFORMATION IN WIRELESS NETWORKS
    46.
    发明申请
    SYSTEM AND METHOD FOR DISTRIBUTING PROXYING ERROR INFORMATION IN WIRELESS NETWORKS 有权
    在无线网络中分配代理错误信息的系统和方法

    公开(公告)号:US20070266143A1

    公开(公告)日:2007-11-15

    申请号:US11383042

    申请日:2006-05-12

    IPC分类号: G06F15/173

    摘要: A system and method for distributing proxying error information in wireless networks is provided. The includes associating a proxy node with a non-routable node; sending a data packet from an initiator node to the proxy node for delivery to the non-routable node; determining by the proxy node that the non-routable device has disassociated from the proxy node; sending a proxy error message from the proxy node to the initiator node to inform the initiator node that the non-routable node is no longer proxied by the proxy node; and starting a route discovery process for the non-routable device by the initiator node.

    摘要翻译: 提供了一种用于在无线网络中分发代理错误信息的系统和方法。 包括将代理节点与不可路由的节点相关联; 将数据分组从发起者节点发送到代理节点,以传送到不可路由节点; 由所述代理节点确定所述不可路由设备已经从所述代理节点取消关联; 从所述代理节点向所述发起方节点发送代理错误消息以通知所述发起方节点所述不可路由节点不再被所述代理节点代理; 以及由发起者节点启动不可路由设备的路由发现过程。

    Method and apparatus for broadcast in an AD HOC network with dynamic selection of relay nodes
    48.
    发明申请
    Method and apparatus for broadcast in an AD HOC network with dynamic selection of relay nodes 有权
    在具有中继节点动态选择的AD HOC网络中广播的方法和装置

    公开(公告)号:US20070121521A1

    公开(公告)日:2007-05-31

    申请号:US11289833

    申请日:2005-11-30

    IPC分类号: H04J1/16

    CPC分类号: H04B7/155 H04W40/00 H04W84/18

    摘要: Techniques are provided for allowing a node (300) in an ad hoc network to deterministically decide whether to relay broadcast information to another node in the ad hoc network. The node (300) receives broadcast information and measures received signal strength (RSS) of the broadcast information. The node (300) may determine if the measured RSS is below a low threshold, and if so, can relay the broadcast information to neighbor nodes. Otherwise, the node (300) can also determine if the measured RSS is above a high threshold, and if not, wait for a waiting period before relaying the broadcast information to the neighbor nodes. The node (300) may dynamically adjust the low threshold by decreasing the low threshold as the number of neighbor nodes increases and may dynamically adjust the high threshold by increasing the high threshold as the number of neighbor nodes decreases.

    摘要翻译: 提供了允许自组织网络中的节点(300)确定地决定是否将广播信息中继到自组织网络中的另一个节点的技术。 节点(300)接收广播信息并测量广播信息的接收信号强度(RSS)。 节点(300)可以确定测量的RSS是否低于低阈值,如果是,则可以将广播信息中继到相邻节点。 否则,节点(300)还可以确定测量的RSS是否高于高阈值,如果不是,则等待等待周期,然后再将广播信息中继到相邻节点。 节点(300)可以通过随着邻居节点数量的增加而减小低阈值来动态地调整低阈值,并且可以随着邻居节点数的增加而增加高阈值来动态地调整高阈值。

    System and method to improve the overall performance of a wireless communication network
    49.
    发明申请
    System and method to improve the overall performance of a wireless communication network 有权
    提高无线通信网络整体性能的系统和方法

    公开(公告)号:US20060187893A1

    公开(公告)日:2006-08-24

    申请号:US11403245

    申请日:2006-04-13

    申请人: Avinash Joshi

    发明人: Avinash Joshi

    IPC分类号: H04Q7/00 H04Q7/24 H04L12/56

    摘要: A system and method for controlling the dissemination of Routing packets, and decreasing the latency in finding routes between nodes (SD1 through SD5). The system and method provides message exchanges between wireless devices (SD1 though SD5, IAP 130) to determine optimized communication routes with a minimum of overhead messages and buffered data. Exchanged messages are reduced to a specific series of exchanges indicating destination, destination node detection, and route, preferably using a series of IAP devices. Routes are discovered in an efficient manner and latency in finding routes between nodes (SD1 though SD5) is reduced, thereby reducing buffered information levels at individual devices.

    摘要翻译: 一种用于控制路由分组传播的系统和方法,并减少在节点之间寻找路由的延迟(SD 1至SD 5)。 该系统和方法提供无线设备(SD 1至SD 5,IAP 130)之间的消息交换,以利用最少的开销消息和缓冲数据来确定优化的通信路由。 交换的消息被减少到指示目的地,目的地节点检测和路由的特定一系列交换,优选地使用一系列IAP设备。 以有效的方式发现路由,并且减少在节点(SD 1至SD 5)之间寻找路由的延迟,从而减少各个设备处的缓冲信息水平。

    System and method for decreasing latency in locating routes between nodes in a wireless communication network
    50.
    发明授权
    System and method for decreasing latency in locating routes between nodes in a wireless communication network 有权
    用于减少在无线通信网络中的节点之间定位路由的延迟的系统和方法

    公开(公告)号:US07061925B2

    公开(公告)日:2006-06-13

    申请号:US10863710

    申请日:2004-06-07

    申请人: Avinash Joshi

    发明人: Avinash Joshi

    IPC分类号: H04L12/28

    摘要: A system and method for controlling the dissemination of Routing packets, and decreasing the latency in finding routes between nodes. The system and method provides message exchanges between wireless devices to determine optimized communication routes with a minimum of overhead messages and buffered data. Exchanged messages are reduced to a specific series of exchanges indicating destination, destination node detection, and route, preferably using a series of IAP devices. Routes are discovered in an efficient manner and latency in finding routes between nodes is reduced, thereby reducing buffered information levels at individual devices.

    摘要翻译: 一种用于控制路由分组传播的系统和方法,并减少在节点之间寻找路由的延迟。 系统和方法提供无线设备之间的消息交换,以利用最少的开销消息和缓冲数据来确定优化的通信路由。 交换的消息被减少到指示目的地,目的地节点检测和路由的特定一系列交换,优选地使用一系列IAP设备。 以有效的方式发现路由,减少在节点之间寻找路由的延迟,从而减少各个设备的缓冲信息水平。