公开(公告)号：US08509166B2

公开(公告)日：2013-08-13

申请号：US12695661

申请日：2010-01-28

申请人： Kenneth J. Kerpez ,  Tian Lan ,  Kaustubh Sinkar ,  Latha Kant

发明人： Kenneth J. Kerpez ,  Tian Lan ,  Kaustubh Sinkar ,  Latha Kant

IPC分类号： H04W4/00 ,  H04W72/00

CPC分类号： H04W24/06 ,  H04W28/22 ,  H04W72/04 ,  H04W72/0473 ,  H04W72/12 ,  H04W84/045

摘要： A resource scheduling and power allocation technique is provided for a LTE radio network integrated with femtocells. The technique utilizes a tri-phase approach that includes a stochastic geometric model of an exemplary radio network that generates a channel attenuation matrix for each channel at each PRB. A resource scheduling and power allocation procedure determines a near optimal assignment of mobile user to PRBs based on the channel attenuations, potential data rates, and transmit power subject to maximizing the data rates in accordance with a fairness objective. A discrete-event simulation procedure simulates the end-to-end transmission of the data packets in a packet-switch network in accordance with the assignments to analyze the behavior of the overall network.

摘要翻译： 为与毫微微小区集成的LTE无线网络提供资源调度和功率分配技术。 该技术利用三相方法，其包括在每个PRB处为每个信道生成信道衰减矩阵的示例性无线电网络的随机几何模型。 资源调度和功率分配过程基于信道衰减，潜在数据速率和发射功率，根据公平目标来最大化数据速率，确定移动用户对PRB的近似最佳分配。 离散事件仿真程序根据分配整个网络的行为的分配模拟分组交换网络中的数据分组的端到端传输。

公开(公告)号：US20110183678A1

公开(公告)日：2011-07-28

申请号：US12695661

申请日：2010-01-28

申请人： Kenneth J. Kerpez ,  Tian Lan ,  Kaustubh Sinkar ,  Latha Kant

发明人： Kenneth J. Kerpez ,  Tian Lan ,  Kaustubh Sinkar ,  Latha Kant

IPC分类号： H04W72/00

CPC分类号： H04W24/06 ,  H04W28/22 ,  H04W72/04 ,  H04W72/0473 ,  H04W72/12 ,  H04W84/045

摘要： A resource scheduling and power allocation technique is provided for a LTE radio network integrated with femtocells. The technique utilizes a tri-phase approach that includes a stochastic geometric model of an exemplary radio network that generates a channel attenuation matrix for each channel at each PRB. A resource scheduling and power allocation procedure determines a near optimal assignment of mobile user to PRBs based on the channel attenuations, potential data rates, and transmit power subject to maximizing the data rates in accordance with a fairness objective. A discrete-event simulation procedure simulates the end-to-end transmission of the data packets in a packet-switch network in accordance with the assignments to analyze the behavior of the overall network.

摘要翻译： 为与毫微微小区集成的LTE无线网络提供资源调度和功率分配技术。 该技术利用三相方法，其包括在每个PRB处为每个信道生成信道衰减矩阵的示例性无线电网络的随机几何模型。 资源调度和功率分配过程基于信道衰减，潜在数据速率和发射功率，根据公平目标来最大化数据速率，确定移动用户对PRB的近似最佳分配。 离散事件仿真程序根据分配整个网络的行为的分配模拟分组交换网络中的数据分组的端到端传输。

公开(公告)号：US20120030150A1

公开(公告)日：2012-02-02

申请号：US12845895

申请日：2010-07-29

申请人： Anthony McAuley ,  Latha Kant ,  Kaustubh Sinkar

发明人： Anthony McAuley ,  Latha Kant ,  Kaustubh Sinkar

IPC分类号： G06F15/173 ,  G06F15/18

CPC分类号： H04L45/02 ,  H04L45/12

摘要： In a network that executes a link state routing protocol, a network node receives periodic disseminations of link state information from other network nodes. The link state information includes neighboring node identity and link cost metrics. The network node calculates the initial routing paths based on the received link state information by using a link state routing algorithm. It then adapts the calculated path based on both the current link state information and past link state information through a reinforcement learning process. The network node then selects a routing path to each destination node based on the adaptation and updates the routing table accordingly.

摘要翻译： 在执行链路状态路由协议的网络中，网络节点从其他网络节点接收链路状态信息的周期性传播。 链路状态信息包括相邻节点标识和链路成本度量。 网络节点通过使用链路状态路由算法，基于接收到的链路状态信息来计算初始路由路径。 然后，通过强化学习过程，基于当前链路状态信息和过去链路状态信息来适配计算出的路径。 网络节点然后基于适配选择到每个目的地节点的路由路径，并相应地更新路由表。

公开(公告)号：US20120257498A1

公开(公告)日：2012-10-11

申请号：US13112254

申请日：2011-05-20

申请人： Abhrajit Ghosh ,  Alexander Poylisher ,  Ricardo Martija ,  Ritu Chadha ,  Latha Kant

发明人： Abhrajit Ghosh ,  Alexander Poylisher ,  Ricardo Martija ,  Ritu Chadha ,  Latha Kant

IPC分类号： H04L12/56

CPC分类号： H04L47/805 ,  H04L47/822

摘要： Network management for providing and managing Quality of Service (QoS) in converged networks, and particularly management of bursty, short-lived data loads, in an opaque network where knowledge of or control over network elements is not required. Preferential treatment is provided to some subset of the network users that require better QoS assurances from the underlying network by applying probabilistic admission control decisions in conjunction with estimated network state provides improved performance for high priority data with bursty data loads.

摘要翻译： 网络管理，用于提供和管理融合网络中的服务质量（QoS），特别是在不需要网络元素知识或不需要控制的不透明网络中对突发，短期数据负载进行管理。 通过应用概率准入控制决策结合估计的网络状态，向网络用户的一些子集提供优化需求，从底层网络获得更好的QoS保证，为突发数据负载的高优先级数据提供改进的性能。

公开(公告)号：US07933237B2

公开(公告)日：2011-04-26

申请号：US11645451

申请日：2006-12-26

申请人： Farooq Anjum ,  Latha Kant ,  Alexander Poylisher ,  Ritu Chadha

发明人： Farooq Anjum ,  Latha Kant ,  Alexander Poylisher ,  Ritu Chadha

IPC分类号： H04W4/00

CPC分类号： H04L47/10 ,  H04L41/5019 ,  H04L43/045 ,  H04L43/0852 ,  H04L43/0888 ,  H04L47/2425 ,  H04L47/245

摘要： A method and apparatus for controlling ingress to a communications network to control quality of service is described. A request to admit a new communications flow is received. A polynomial and its coefficients representing a state of the network is determined and applied to the network state plus the new communications flow to determine whether admission of the new communications flow would cause the network to operate in a stable or unstable state. In response to determining that the network would operate in the unstable state, a communications flow for the ingress device is downgraded in its quality of service. By another approach, it is determined whether the new communications flow exceeds an allocated quota of bandwidth. Admission or rejection of the communications flow can be determined.

摘要翻译： 描述了一种用于控制对通信网络的入口以控制服务质量的方法和装置。 接收到接受新通信流的请求。 确定表示网络状态的多项式及其系数并将其应用于网络状态加上新的通信流，以确定新的通信流的接纳是否会导致网络在稳定或不稳定的状态下运行。 响应于确定网络将在不稳定状态下操作，用于入口设备的通信流被降低其服务质量。 通过另一种方法，确定新的通信流是否超过分配的带宽配额。 可以确定通信流程的接纳或拒绝。

公开(公告)号：US07975300B2

公开(公告)日：2011-07-05

申请号：US11161739

申请日：2005-08-15

申请人： Byungsuk Kim ,  Farooq Anjum ,  Subir Das ,  Praveen Gopalakrishnan ,  Latha Kant

发明人： Byungsuk Kim ,  Farooq Anjum ,  Subir Das ,  Praveen Gopalakrishnan ,  Latha Kant

IPC分类号： G06F12/14 ,  G06F11/30

CPC分类号： H04L63/1408 ,  H04L63/1466

摘要： The present invention, among other things, obviates the effects of an attack on a wireless network through appropriate isolation and recovery. An aspect of the present invention can include a system and method of isolating a victim of malicious behavior in a wireless access network, and in particular WLAN networks. By having software on the victim's device, the system provides the capability of recovering the victim from the effects of the intruder, and prevents the victim from being affected by subsequent attacks by the intruder. The preferred embodiments include two key components: a local monitor and a global monitor.

摘要翻译： 本发明尤其是通过适当的隔离和恢复来消除对无线网络的攻击的影响。 本发明的一个方面可以包括在无线接入网络，特别是WLAN网络中分离恶意行为的受害者的系统和方法。 通过在受害者的设备上使用软件，系统提供从入侵者的效果中恢复受害者的能力，并防止受害者受到入侵者后续攻击的影响。 优选实施例包括两个关键组件：本地监视器和全局监视器。

公开(公告)号：US6167025A

公开(公告)日：2000-12-26

申请号：US926255

申请日：1997-09-05

申请人： Deh-phone K. Hsing ,  Tsong-Ho Wu ,  Latha Kant ,  Bo-Chao Cheng ,  Yusuf Goksel Goncu

发明人： Deh-phone K. Hsing ,  Tsong-Ho Wu ,  Latha Kant ,  Bo-Chao Cheng ,  Yusuf Goksel Goncu

IPC分类号： G01R31/08

CPC分类号： G01R31/086

摘要： Methods and apparatus for detecting faults and restoring connections in networks including, e.g., ATM networks are described. The restoration methods of the present invention can be applied on an application by application or user by user basis. In accordance with the present invention virtual connections affected by link or node failures are restored through re-routing as opposed to establishing a completely new connection between a source and a destination device. VPI/VCI values are assigned at the time of re-routing thereby avoiding the potential problem of VPI/VCI exhaustion which may be encountered when backup VPI/VCI values are assigned at the time a communication session is initiated. The connection restoration process of the present invention is initiated by a node on the source side of a connection detecting a failure and initiating a re-routing operation or transmitting a message to the source switch to initiate a re-routing operation. A node on the destination device side of a failed connection is used for initiating the release of network resources reserved at the switches which were used as part of the no longer used path of the re-routed call. The destination device side node (switch) detecting a fault transmits a re-route release message to downstream switches. Restoration methods applicable to pre-planned hop-by-hop, pre-planned source routing and dynamic source routing embodiments are described. In one embodiment, ATM assured mode data transport operation on signaling channels is used to detect node and/or link failures.

摘要翻译： 描述了用于检测网络中的故障和恢复连接的方法和装置，包括例如ATM网络。 本发明的恢复方法可以通过应用或用户基于用户的应用来应用。 根据本发明，通过重新路由恢复受链路或节点故障影响的虚拟连接，而不是在源和目的地设备之间建立全新的连接。 在重新路由时分配VPI / VCI值，从而避免在通信会话启动时分配备份VPI / VCI值时可能遇到的VPI / VCI耗尽的潜在问题。 本发明的连接恢复过程由检测到故障的连接的源侧的节点发起，并且发起重路由操作或者向源交换机发送消息以发起重路由操作。 故障连接的目的地设备侧的节点用于发起在交换机处保留的网络资源的释放，这些网络资源被用作重新路由呼叫的不再使用的路径的一部分。 检测故障的目的设备侧节点（交换机）向下游交换机发送重新路由释放消息。 描述适用于预先规划的逐跳，预先规划的源路由和动态源路由实施例的恢复方法。 在一个实施例中，信令信道上的ATM保证模式数据传输操作用于检测节点和/或链路故障。

公开(公告)号：US08665715B2

公开(公告)日：2014-03-04

申请号：US13112254

申请日：2011-05-20

申请人： Abhrajit Ghosh ,  Alexander Poylisher ,  Ricardo Martija ,  Ritu Chadha ,  Latha Kant

发明人： Abhrajit Ghosh ,  Alexander Poylisher ,  Ricardo Martija ,  Ritu Chadha ,  Latha Kant

IPC分类号： H04L1/00

CPC分类号： H04L47/805 ,  H04L47/822

摘要： Network management for providing and managing Quality of Service (QoS) in converged networks, and particularly management of bursty, short-lived data loads, in an opaque network where knowledge of or control over network elements is not required. Preferential treatment is provided to some subset of the network users that require better QoS assurances from the underlying network by applying probabilistic admission control decisions in conjunction with estimated network state provides improved performance for high priority data with bursty data loads.

摘要翻译： 网络管理，用于提供和管理融合网络中的服务质量（QoS），特别是在不需要网络元素知识或不需要控制的不透明网络中对突发，短期数据负载进行管理。 通过应用概率准入控制决策结合估计的网络状态，向网络用户的一些子集提供优化需求，从底层网络获得更好的QoS保证，为突发数据负载的高优先级数据提供改进的性能。

公开(公告)号：US20060236391A1

公开(公告)日：2006-10-19

申请号：US11161739

申请日：2005-08-15

申请人： Byungsuk Kim ,  Farooq Anjum ,  Subir Das ,  Praveen Gopalakrishnan ,  Latha Kant

发明人： Byungsuk Kim ,  Farooq Anjum ,  Subir Das ,  Praveen Gopalakrishnan ,  Latha Kant

IPC分类号： G06F12/14

CPC分类号： H04L63/1408 ,  H04L63/1466

摘要： The present invention, among other things, obviates the effects of an attack on a wireless network through appropriate isolation and recovery. An aspect of the present invention can include a system and method of isolating a victim of malicious behavior in a wireless access network, and in particular WLAN networks. By having software on the victim's device, the system provides the capability of recovering the victim from the effects of the intruder, and prevents the victim from being affected by subsequent attacks by the intruder. The preferred embodiments include two key components: a local monitor and a global monitor.

摘要翻译： 本发明尤其是通过适当的隔离和恢复来消除对无线网络的攻击的影响。 本发明的一个方面可以包括在无线接入网络，特别是WLAN网络中分离恶意行为的受害者的系统和方法。 通过在受害者的设备上使用软件，系统提供从入侵者的效果中恢复受害者的能力，并防止受害者受到入侵者后续攻击的影响。 优选实施例包括两个关键组件：本地监视器和全局监视器。

公开(公告)号：US07764635B2

公开(公告)日：2010-07-27

申请号：US11114846

申请日：2005-04-26

申请人： Wai Chen ,  Latha Kant ,  Christopher Sadler

发明人： Wai Chen ,  Latha Kant ,  Christopher Sadler

IPC分类号： H04B7/00

CPC分类号： H04W52/46 ,  H04L45/124 ,  H04L45/22 ,  H04L45/28 ,  H04W40/10 ,  H04W40/14 ,  H04W52/267 ,  H04W84/18 ,  Y02D70/142 ,  Y02D70/164 ,  Y02D70/22 ,  Y02D70/326 ,  Y02D70/34

摘要： Disclosed is a method and apparatus for improved self-healing in a mobile ad-hoc wireless network in which network communication functions are divided into a plurality of functional layers. The system utilizes cross-layer self-healing techniques. Network data from at least one of the functional layers is stored, for example in a storage unit of the network node. The stored network data is then used to modify the functioning of at least one of the other layers. In one embodiment, a management module manages the storage and use of the network data. In particular embodiments, the stored network data relates to successful transmission rates and/or clear channel rates, and this stored data is used to adjust the transmission power of the network node. In another embodiment, the stored data may be used to generate a table of interchangeable network nodes, which may then be used to reroute a data packet to a network node other than an originally specified destination node. In yet another embodiment, the stored data may be used to generate a list of recent neighbor nodes, which data may be used to reroute data packets to intermediate network nodes.

摘要翻译： 公开了一种用于在网络通信功能被分成多个功能层的移动自组织无线网络中改进自修复的方法和装置。 该系统采用跨层自愈技术。 来自至少一个功能层的网络数据被存储在例如网络节点的存储单元中。 存储的网络数据然后被用于修改其他层中的至少一个的功能。 在一个实施例中，管理模块管理网络数据的存储和使用。 在特定实施例中，存储的网络数据涉及成功的传输速率和/或清除信道速率，并且该存储的数据用于调整网络节点的传输功率。 在另一个实施例中，所存储的数据可以用于生成可互换网络节点的表，然后可以使用该表来将数据分组重新路由到除了最初指定的目的地节点之外的网络节点。 在另一个实施例中，所存储的数据可以用于生成最近的邻居节点的列表，该数据可用于将数据分组重新路由到中间网络节点。