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1. 发明授权

US07844423B2 Component-based modeling of wireless mac protocols for efficient simulations 有权
标题翻译：基于组件的无线mac协议建模，实现有效的模拟
公开(公告)号：US07844423B2
公开(公告)日：2010-11-30
申请号：US11875900
申请日：2007-10-20
申请人： Karthikeyan Chandrashekar , Paul M. Janes , Alain J. Cohen , Pradeep Singh , David James Boyd , Ibrahim Utku Moral
发明人： Karthikeyan Chandrashekar , Paul M. Janes , Alain J. Cohen , Pradeep Singh , David James Boyd , Ibrahim Utku Moral
IPC分类号： G06F17/50 , G06F11/30 , G06F15/173
CPC分类号： H04L41/145 , H04W24/06 , H04W74/08
摘要： Channel access delays and reception uncertainty are modeled as protocol-independent generic processes that are optimized for improved simulation performance. The generic process components are designed such that each different protocol can be modeled using an arrangement of these components that is specific to the protocol. In this way, speed and/or accuracy improvements to the generic process components are reflected in each of such protocol models. If an accurate analytic model is not available for the generic process component, a prediction engine, such as a neural network, is preferably used. The prediction engine is trained using the existing detailed models of network devices. Once trained, the prediction engine is used to model the generic process, and the protocol model that includes the generic component is used in lieu of the detailed models, thereby saving substantial processing time.
摘要翻译：通道访问延迟和接收不确定性被建模为针对改进的仿真性能进行了优化的协议无关的通用进程。通用过程组件被设计为使得可以使用特定于协议的这些组件的布置来对每个不同的协议进行建模。以这种方式，通用过程组件的速度和/或精度改进反映在每个这样的协议模型中。如果准确的分析模型对于通用处理组件不可用，则优选地使用诸如神经网络的预测引擎。使用现有的网络设备详细模型来训练预测引擎。一旦被训练，预测引擎用于对通用过程进行建模，并且使用包括通用组件的协议模型来代替详细模型，从而节省大量的处理时间。

2. 发明申请

US20080103738A1 MODELING AND SIMULATING WIRELESS MAC PROTOCOLS 有权
标题翻译：无线MAC协议的建模与仿真
公开(公告)号：US20080103738A1
公开(公告)日：2008-05-01
申请号：US11875900
申请日：2007-10-20
申请人： Karthikeyan CHANDRASHEKAR , Paul M. Janes , Alain J. Cohen , Pradeep Singh , David James Boyd , Ibrahim Utku Moral
发明人： Karthikeyan CHANDRASHEKAR , Paul M. Janes , Alain J. Cohen , Pradeep Singh , David James Boyd , Ibrahim Utku Moral
IPC分类号： G06G7/48
CPC分类号： H04L41/145 , H04W24/06 , H04W74/08
摘要： Channel access delays and reception uncertainty are modeled as protocol-independent generic processes that are optimized for improved simulation performance. The generic process components are designed such that each different protocol can be modeled using an arrangement of these components that is specific to the protocol. In this way, speed and/or accuracy improvements to the generic process components are reflected in each of such protocol models. If an accurate analytic model is not available for the generic process component, a prediction engine, such as a neural network, is preferably used. The prediction engine is trained using the existing detailed models of network devices. Once trained, the prediction engine is used to model the generic process, and the protocol model that includes the generic component is used in lieu of the detailed models, thereby saving substantial processing time.
摘要翻译：通道访问延迟和接收不确定性被建模为针对改进的仿真性能进行了优化的协议无关的通用进程。通用过程组件被设计为使得可以使用特定于协议的这些组件的布置来对每个不同的协议进行建模。以这种方式，通用过程组件的速度和/或精度改进反映在每个这样的协议模型中。如果准确的分析模型对于通用处理组件不可用，则优选地使用诸如神经网络的预测引擎。使用现有的网络设备详细模型来训练预测引擎。一旦被训练，预测引擎用于对通用过程进行建模，并且使用包括通用组件的协议模型来代替详细模型，从而节省大量的处理时间。

3. 发明授权

US09253045B2 Modeling and simulating flow propagation in dynamic bandwidth systems 有权
标题翻译：在动态带宽系统中建模和模拟流传播
公开(公告)号：US09253045B2
公开(公告)日：2016-02-02
申请号：US11941186
申请日：2007-11-16
申请人： Karthikeyan Chandrashekar , Alain J. Cohen , Paul M. Janes , David Boyd , Stefan Znam , Pradeep Singh
发明人： Karthikeyan Chandrashekar , Alain J. Cohen , Paul M. Janes , David Boyd , Stefan Znam , Pradeep Singh
IPC分类号： G06F17/50 , G06G7/62 , H04L12/24
CPC分类号： H04L41/145 , H04L41/0896 , H04L41/22
摘要： In a network that includes static bandwidth and dynamic bandwidth links, traffic flow at the OSI network layer is simulated at a traffic-flow level at interfaces to fixed bandwidth links, and simulated at a discrete-packet level at interfaces to dynamic bandwidth links. The resultant discrete-packet reception events at the receiving interface(s) of the dynamic bandwidth link are processed to determine the effective bandwidth/throughput of the link, as well as the allocation of this bandwidth among the individual flows through the link. The discrete-packet level receptions are used to reconstruct the parameters of the traffic flow at the network layer of the receiving interface, and this determined traffic flow is simulated accordingly at the next link, depending upon whether the next link is a static or dynamic bandwidth link.
摘要翻译：在包含静态带宽和动态带宽链路的网络中，在固定带宽链路的接口处，在业务流级别模拟OSI网络层的流量，并在离散分组级别模拟动态带宽链路的接口。在动态带宽链路的接收接口处的结果离散分组接收事件被处理以确定链路的有效带宽/吞吐量，以及通过链路在各个流中分配该带宽。离散分组级接收用于重构接收接口的网络层的业务流的参数，根据下一个链路是静态带宽还是动态带宽，在下一个链路上相应地模拟确定的流量链接。

4. 发明申请

US20080120081A1 MODELING AND SIMULATING FLOW PROPAGATION IN DYNAMIC BANDWIDTH SYSTEMS 有权
标题翻译：动态带宽系统的建模与仿真流程传播
公开(公告)号：US20080120081A1
公开(公告)日：2008-05-22
申请号：US11941186
申请日：2007-11-16
申请人： Karthikeyan CHANDRASHEKAR , Alain J. Cohen , Paul M. Janes , David Boyd , Stefan Znam , Pradeep Singh
发明人： Karthikeyan CHANDRASHEKAR , Alain J. Cohen , Paul M. Janes , David Boyd , Stefan Znam , Pradeep Singh
IPC分类号： G06G7/50
CPC分类号： H04L41/145 , H04L41/0896 , H04L41/22
摘要： In a network that includes static bandwidth and dynamic bandwidth links, traffic flow at the OSI network layer is simulated at a traffic-flow level at interfaces to fixed bandwidth links, and simulated at a discrete-packet level at interfaces to dynamic bandwidth links. The resultant discrete-packet reception events at the receiving interface(s) of the dynamic bandwidth link are processed to determine the effective bandwidth/throughput of the link, as well as the allocation of this bandwidth among the individual flows through the link. The discrete-packet level receptions are used to reconstruct the parameters of the traffic flow at the network layer of the receiving interface, and this determined traffic flow is simulated accordingly at the next link, depending upon whether the next link is a static or dynamic bandwidth link.
摘要翻译：在包含静态带宽和动态带宽链路的网络中，在固定带宽链路的接口处，在业务流级别模拟OSI网络层的流量，并在离散分组级别模拟动态带宽链路的接口。在动态带宽链路的接收接口处的结果离散分组接收事件被处理以确定链路的有效带宽/吞吐量，以及通过链路在各个流中分配该带宽。离散分组级接收用于重构接收接口的网络层的业务流的参数，根据下一个链路是静态带宽还是动态带宽，在下一个链路上相应地模拟确定的流量链接。

5. 发明授权

US08693493B2 Methods and system for modeling wireless communications in a network 有权
标题翻译：网络无线通信建模方法及系统
公开(公告)号：US08693493B2
公开(公告)日：2014-04-08
申请号：US13590088
申请日：2012-08-20
申请人： Pradeep K. Singh , Alain J. Cohen , Alejandro Talavera-Martinez , Arun Pasupathy , Vinod Jeyachandran , Ibrahim Utku Moral
发明人： Pradeep K. Singh , Alain J. Cohen , Alejandro Talavera-Martinez , Arun Pasupathy , Vinod Jeyachandran , Ibrahim Utku Moral
IPC分类号： H04L12/413
CPC分类号： H04W16/225 , H04W74/00
摘要： The embodiments relate to modeling wireless communications in a network. In wireless communications, the nodes share one or more wireless communication channels. When a node has data to transmit, it must contend with the other nodes for access to the wireless communication channel. In the embodiments, the model is configured to simulate the throughput effects of contention including delays caused by retransmissions due to interference and collisions, listen-and-backoff, unavailability of time slots, etc. The occurrence of failed/dropped transmissions due to buffer overflows, excessive retransmission attempts, and unintended collisions are modeled as well. In addition, the embodiments may simulate the effect of mobility by the nodes and the effect of the location of the nodes relative to each other.
摘要翻译：实施例涉及对网络中的无线通信进行建模。在无线通信中，节点共享一个或多个无线通信信道。当节点具有要发送的数据时，它必须与其他节点进行竞争以访问无线通信信道。在实施例中，该模型被配置为模拟由于干扰和冲突，收听和回退，时隙不可用等引起的重传引起的争用的吞吐量效应。由于缓冲区溢出而发生故障/丢弃的传输，过多的重传尝试和意外的冲突也被建模。此外，实施例可以模拟节点的移动性的影响以及节点相对于彼此的位置的影响。

6. 发明授权

US08249094B2 Wireless MAC and link-layer simulation modeling 有权
标题翻译：无线MAC和链路层仿真建模
公开(公告)号：US08249094B2
公开(公告)日：2012-08-21
申请号：US11501388
申请日：2006-08-09
申请人： Pradeep K. Singh , Alain J. Cohen , Alejandro Talavera-Martinez , Arun Pasupathy , Poonam Singh , Ibrahim Utku Moral
发明人： Pradeep K. Singh , Alain J. Cohen , Alejandro Talavera-Martinez , Arun Pasupathy , Poonam Singh , Ibrahim Utku Moral
IPC分类号： H04L12/413
CPC分类号： H04W16/225 , H04W74/00
摘要： Simulation models of media access control and physical layer characteristics facilitate the simulation/emulation of a variety of phenomena that affect transmissions via a wireless media. Such phenomena include media access contention delays, packet drops, and retransmissions that are generally dependent upon changes in transmitter/receiver locations. Each wireless environment is characterized by a model of the communication channel that characterizes transmission effects based on the number of competing transmitters in the environment, which is dynamically determined based on the location of each node in the environment. Additionally, the location of nodes is used to simulate the effects of ‘hidden nodes’, nodes that are unknown to a transmitting node but can interfere with the reception of transmissions at a receiving node. Each device/node model in the wireless environment preferably accesses the same model of the communication channel, thereby minimizing the amount of detail required at each device model.
摘要翻译：介质访问控制和物理层特性的仿真模型有助于模拟/仿真影响通过无线介质传输的各种现象。这种现象包括通常取决于发射机/接收机位置的改变的媒体接入争用延迟，分组丢弃和重传。每个无线环境的特征在于基于环境中的竞争发射机的数量来表征传输效应的通信信道的模型，其基于环境中的每个节点的位置动态地确定。另外，节点的位置用于模拟“隐藏节点”，发送节点未知的节点的影响，但可能会干扰接收节点的传输接收。无线环境中的每个设备/节点模型优选地访问通信信道的相同模型，从而最小化每个设备模型所需的细节量。

7. 发明授权

US07469203B2 Wireless network hybrid simulation 有权
标题翻译：无线网络混合仿真
公开(公告)号：US07469203B2
公开(公告)日：2008-12-23
申请号：US10923214
申请日：2004-08-20
申请人： Alain J. Cohen , Pradeep Singh
发明人： Alain J. Cohen , Pradeep Singh
IPC分类号： G06F17/50 , G06F9/45 , G06F14/173 , G06F11/30
CPC分类号： H04W16/18 , H04L41/145 , H04W40/02
摘要： A simulation method and system partitions network traffic into background traffic and explicit traffic, wherein explicit traffic is processed in detail, and background traffic is processed at a more abstract level. The packets of explicit traffic are modeled in complete detail, so that precise timing and behavior characteristics can be determined, whereas large volumes of traffic are modeled more abstractly as background flows, and only certain aspects, such as routing through the network, are simulated. Tracer packets are used to model the background traffic and carry a number of characteristics of interest for generating simulation results. In this manner, the effect of the background traffic on the explicit traffic can be modeled at each network element. The abstract processing of background traffic is facilitated by techniques that include multi-variate table look-up, neural networks, and the like.
摘要翻译：模拟方法和系统将网络流量分为后台流量和显式流量，其中详细处理显式流量，并且以更抽象的级别处理后台流量。明确流量的数据包将被完整的建模，从而可以确定精确的时序和行为特征，而大量的流量则作为背景流更抽象地进行建模，只有模拟网络路由等某些方面。示踪器数据包用于对后台流量进行建模，并携带多个感兴趣的特性以生成仿真结果。以这种方式，可以在每个网络元件上对后台流量对显式流量的影响进行建模。通过包括多变量表查找，神经网络等的技术来促进背景流量的抽象处理。

8. 发明授权

US10003509B2 Packet tracing 有权
公开(公告)号：US10003509B2
公开(公告)日：2018-06-19
申请号：US11180878
申请日：2005-07-13
申请人： Patrick J. Malloy , Michael Cohen , Alain J. Cohen
发明人： Patrick J. Malloy , Michael Cohen , Alain J. Cohen
IPC分类号： H04L12/26 , H04L12/24
CPC分类号： H04L43/028 , H04L41/5009 , H04L43/00 , H04L43/02 , H04L43/04 , H04L43/062
摘要： To evaluate a network's performance in processing communications related to a target transaction, a set of “reference” communications corresponding to the target transaction are compared to a larger set of communications in the network in a “production” environment, to identify the occurrence of the target transaction in the production environment. Preferably, the reference communications are recorded in a laboratory environment that models the production environment, or recorded from the production environment during a period of minimal other activities. A variety of filters are used to eliminate communications in the production environment that are apparently unrelated to the target transaction, including filters based on the time-order of communications among the nodes, the size of the packets being communicated, and the content of the communications. If necessary, after eliminating the apparently unrelated communications from consideration, the remaining production communications are compared to the reference communications to identify the most likely production communications corresponding to the reference communications.

9. 发明申请

US20110276887A1 ORGANIZING, DISPLAYING, AND/OR MANIPULATING NETWORK TRAFFIC DATA 审中-公开
标题翻译：组织，显示和/或管理网络交通数据
公开(公告)号：US20110276887A1
公开(公告)日：2011-11-10
申请号：US13186776
申请日：2011-07-20
申请人： Alain J. Cohen , David Manowitz , Yevgeny Gurevich , Edward A. Sykes , Shobana Narayanaswamy
发明人： Alain J. Cohen , David Manowitz , Yevgeny Gurevich , Edward A. Sykes , Shobana Narayanaswamy
IPC分类号： G06F3/01 , G06F15/16
CPC分类号： H04L41/142 , H04L41/0213 , H04L41/147 , H04L41/22 , H04L43/028 , H04L43/0829 , H04L43/087
摘要： A system and method for analyzing network traffic activity by displaying a collection of flow objects and receiving a user's selection of a traffic operation that is to be applied to a set of selected flow objects. Thereafter, the results of applying the traffic operation to the selected flow objects are displayed. The traffic operation may include a merge operation that provides statistics related to an aggregation of the flow objects. The traffic operation may also include a modification operation that modifies the selected flow objects, including, for example, a modification based on predicted traffic flow. Other traffic operations may also be provided, including providing access to plug-in traffic operation applications.
摘要翻译：一种用于通过显示流对象的集合并接收用户对要应用于一组所选流对象的交通操作的选择来分析网络流量活动的系统和方法。此后，显示将流量操作应用于所选择的流对象的结果。流量操作可以包括提供与流对象的聚合有关的统计信息的合并操作。交通操作还可以包括修改所选择的流对象的修改操作，包括例如基于预测的业务流的修改。还可以提供其他业务操作，包括提供对插件业务操作应用的访问。

10. 发明申请

US20110055390A1 NETWORK CAPACITY PLANNING 有权
标题翻译：网络容量规划
公开(公告)号：US20110055390A1
公开(公告)日：2011-03-03
申请号：US12861832
申请日：2010-08-24
申请人： Patrick J. Malloy , Dana Znamova , Alain J. Cohen , Antoine Dunn , John W. Strohm , Abbas Haider Ali , Russell Mark Elsner
发明人： Patrick J. Malloy , Dana Znamova , Alain J. Cohen , Antoine Dunn , John W. Strohm , Abbas Haider Ali , Russell Mark Elsner
IPC分类号： G06F15/16
CPC分类号： H04L41/145 , H04L41/22
摘要： Data representing application deployment attributes, network topology, and network performance attributes based on a reduced set of element attributes is utilized to simulate application deployment. The data may be received from a user directly, a program that models a network topology or application behavior, and a wizard that implies the data based on an interview process. The simulation may be based on application deployment attributes including application traffic pattern, application message sizes, network topology, and network performance attributes. The element attributes may be determined from a lookup table of element operating characteristics that may contain element maximum and minimum boundary operating values utilized to interpolate other operating conditions. Application response time may be derived using an iterative analysis based on multiple instances of one or more applications wherein a predetermined number of iterations is used or until a substantially steady state of network performance is achieved.
摘要翻译：利用表示应用程序部署属性，网络拓扑和基于简化的元素属性集合的网络性能属性的数据来模拟应用程序部署。可以直接从用户接收数据，对网络拓扑或应用行为进行建模的程序，以及基于访问过程暗示数据的向导。模拟可以基于应用部署属性，包括应用流量模式，应用消息大小，网络拓扑和网络性能属性。可以从可能包含用于内插其他操作条件的元件最大和最小边界操作值的元件操作特性的查找表来确定元素属性。可以使用基于一个或多个应用的多个实例的迭代分析来导出应用响应时间，其中使用预定数量的迭代，或直到达到基本稳定的网络性能状态。

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