公开(公告)号：US08675484B2

公开(公告)日：2014-03-18

申请号：US13089502

申请日：2011-04-19

Applicant: Bozidar Radunovic ,  Hong L. Truong

Inventor： Bozidar Radunovic ,  Hong L. Truong

IPC: G01R31/08

CPC classification number: H04W28/18 ,  H04L67/12 ,  H04W24/00 ,  H04W84/18 ,  H04W88/04

Abstract: A sensor network has a plurality of wireless sensors which transmit to an intermediate receiving device which relays data to a central server. A method is provided for receiving data packets at the intermediate receiving device from a plurality of the transmitting devices. Data packets are sensed on a communication medium at the receiving device and the total traffic intensity of data packets from the transmitting devices is estimated. A detection threshold for data packets is provided and adapted as a function of the total intensity. The receiving device receives data packets with a signal strength above the current detection threshold.

Abstract translation: 传感器网络具有多个无线传感器，其向中央接收设备传送数据到中央服务器。 提供了一种从多个发送装置接收中间接收装置的数据分组的方法。 在接收设备的通信介质上感测数据分组，并且估计来自发送设备的数据分组的总业务强度。 提供数据包的检测阈值并根据总强度进行调整。 接收设备接收信号强度高于当前检测阈值的数据包。

公开(公告)号：US08351331B2

公开(公告)日：2013-01-08

申请号：US12820825

申请日：2010-06-22

Applicant: Thomas Karagiannis ,  Christos Gkantsidis ,  Peter Bernard Key ,  Richard Harper ,  Abigail Sellen ,  Timothy Regan ,  Richard M. Banks ,  Ilias Raftopoulos ,  Dharmaiah Manjunath ,  Bozidar Radunovic

Inventor： Thomas Karagiannis ,  Christos Gkantsidis ,  Peter Bernard Key ,  Richard Harper ,  Abigail Sellen ,  Timothy Regan ,  Richard M. Banks ,  Ilias Raftopoulos ,  Dharmaiah Manjunath ,  Bozidar Radunovic

IPC: H04L12/28

CPC classification number: H04L47/14 ,  H04L43/045 ,  H04L43/0882 ,  H04L47/10 ,  H04L47/20 ,  H04L47/25 ,  H04L47/41 ,  H04W28/22 ,  H04W72/04 ,  H04W72/12

Abstract: A resource allocation framework for wireless/wired networks is described. In an embodiment, methods of end host based traffic management are described which operate separately from the underlying access control protocol within the network (e.g. wireless MAC protocol or TCP). The rate limits for each flow are set based on per-flow weights, which may be user specified, and based on an estimate of the utilization of the shared resource and the rate limits are adjusted periodically so that the resource is not underutilized or saturated. Some embodiments compute a virtual capacity of the resource which is adjusted to optimize the value of the utilization and then the virtual capacity is shared between flows according to the per-flow weights. Methods for estimating the utilization of a wireless network and the capacity of a broadband access link are also described.

Abstract translation: 描述了无线/有线网络的资源分配框架。 在一个实施例中，描述了基于终端主机的业务管理的方法，其与网络内的底层访问控制协议（例如，无线MAC协议或TCP）分开工作。 每个流的速率限制基于可以是用户指定的每流量权重，并且基于对共享资源的利用率的估计，并且周期性地调整速率限制，使得资源未被不充分利用或饱和。 一些实施例计算资源的虚拟容量，其被调整以优化利用的值，然后根据每流量权重在流之间共享虚拟容量。 还描述了用于估计无线网络的利用率的方法和宽带接入链路的容量。

公开(公告)号：US20120294233A1

公开(公告)日：2012-11-22

申请号：US13111970

申请日：2011-05-20

Applicant: Bozidar Radunovic ,  Ranveer Chandra ,  Dinan Srilal Gunawardena

Inventor： Bozidar Radunovic ,  Ranveer Chandra ,  Dinan Srilal Gunawardena

IPC: H04W4/00

CPC classification number: H04L27/0006 ,  H04L1/0038 ,  H04L5/0032 ,  H04L5/0051 ,  H04L5/0062 ,  H04L25/0226 ,  H04L27/2613 ,  H04L27/2656 ,  H04L27/2663 ,  H04L27/2665 ,  H04L27/2691 ,  H04L27/2694

Abstract: Wireless protocols in the unlicensed spectrum are developed for different requirements in terms of transmit range and power, which makes it difficult for multiple nodes having disparate transmit ranges to coexist in the same unlicensed spectrum. A short-range wireless node uses adaptive preambles to signal presence to long-range wireless nodes outside of its transmit range. In addition, a long-range wireless node detects an adapter preamble and backs-off transmissions for reservation period dedicated to short-range nodes.

Abstract translation: 针对发射范围和功率方面的不同要求开发了无许可频谱中的无线协议，这使得具有不同发射范围的多个节点难以在相同的未许可频谱中共存。 短距离无线节点使用自适应前导码来将信号发送到其发射范围之外的远程无线节点。 此外，远程无线节点检测用于短距离节点专用的预留时段的适配器前导码和后退传输。

公开(公告)号：US07738394B2

公开(公告)日：2010-06-15

申请号：US12190829

申请日：2008-08-13

Applicant: Bozidar Radunovic ,  Hong Linh Truong

Inventor： Bozidar Radunovic ,  Hong Linh Truong

IPC: H04J1/16

CPC classification number: H04W28/18 ,  H04L67/12 ,  H04W24/00 ,  H04W84/18 ,  H04W88/04

Abstract: A sensor network has a plurality of wireless sensors which transmit to an intermediate receiving device which relays data to a central server. A method is provided for receiving data packets at the intermediate receiving device from a plurality of the transmitting devices. Data packets are sensed on a communication medium at the receiving device and the total traffic intensity of data packets from the transmitting devices is estimated. A detection threshold for data packets is provided and adapted as a function of the total intensity. The receiving device receives data packets with a signal strength above the current detection threshold.

Abstract translation: 传感器网络具有多个无线传感器，其向中央接收设备传送数据到中央服务器。 提供了一种从多个发送装置接收中间接收装置的数据分组的方法。 在接收设备的通信介质上感测数据分组，并且估计来自发送设备的数据分组的总业务强度。 提供数据包的检测阈值并根据总强度进行调整。 接收设备接收信号强度高于当前检测阈值的数据包。

公开(公告)号：US20060262721A1

公开(公告)日：2006-11-23

申请号：US11411396

申请日：2006-04-26

Applicant: Bozidar Radunovic ,  Hong Truong

Inventor： Bozidar Radunovic ,  Hong Truong

IPC: H04L12/26 ,  H04J1/16

CPC classification number: H04W28/18 ,  H04B17/318 ,  H04L12/413 ,  H04L67/12 ,  H04W24/00 ,  H04W84/18 ,  H04W88/04 ,  H04W88/16

Abstract: A sensor network has a plurality of wireless sensors which transmit to an intermediate receiving device which relays data to a central server. A method is provided for receiving data packets at the intermediate receiving device from a plurality of the transmitting devices. Data packets are sensed on a communication medium at the receiving device and the total traffic intensity of data packets from the transmitting devices is estimated. A detection threshold for data packets is provided and adapted as a function of the total intensity. The receiving device receives data packets with a signal strength above the current detection threshold.

Abstract translation: 传感器网络具有多个无线传感器，其向中央接收设备传送数据到中央服务器。 提供了一种从多个发送装置接收中间接收装置的数据分组的方法。 在接收设备的通信介质上感测数据分组，并且估计来自发送设备的数据分组的总业务强度。 提供数据包的检测阈值并根据总强度进行调整。 接收设备接收信号强度高于当前检测阈值的数据包。

公开(公告)号：US20120320887A1

公开(公告)日：2012-12-20

申请号：US13162963

申请日：2011-06-17

Applicant: Krishna Kant Chintalapudi ,  Bozidar Radunovic ,  Ramachandran Ramjee ,  Eugenio Magistretti

Inventor： Krishna Kant Chintalapudi ,  Bozidar Radunovic ,  Ramachandran Ramjee ,  Eugenio Magistretti

IPC: H04W4/00

CPC classification number: H04W74/0808 ,  H04L1/00 ,  H04L1/1854 ,  H04L12/413 ,  H04L12/6418 ,  H04L47/00 ,  H04L2001/0093 ,  H04L2001/0097 ,  H04W74/0841 ,  H04W84/12

Abstract: The claimed subject matter provides a method for wireless communications. The method includes transmitting, by a first node in a wireless network, a first preamble. The method also includes detecting, in parallel with transmitting the first preamble, a transmission of a second preamble. A second node in the wireless network transmits the second preamble. Additionally, the method includes determining a later start between the transmission of the first preamble and the transmission of the second preamble. The method further includes terminating transmission of the first preamble the determining indicates that the transmission of the first preamble started after the transmission of the second preamble.

Abstract translation: 所要求保护的主题提供了一种用于无线通信的方法。 该方法包括由无线网络中的第一节点发送第一前导码。 该方法还包括与发送第一前同步码并行地检测第二前导码的传输。 无线网络中的第二节点发送第二前同步码。 另外，该方法包括确定第一前同步码的发送和第二前同步码的发送之间的较后开始。 该方法还包括终止第一前导码的传输，该确定指示在第二前同步码的发送之后开始第一前同步码的发送。

公开(公告)号：US20110310735A1

公开(公告)日：2011-12-22

申请号：US12820825

申请日：2010-06-22

Applicant: Thomas Karagiannis ,  Christos Gkantsidis ,  Peter Bernard Key ,  Richard Harper ,  Abigail Sellen ,  Timothy Regan ,  Richard M. Banks ,  Ilias Raftopoulos ,  Dharmaiah Manjunath ,  Bozidar Radunovic

Inventor： Thomas Karagiannis ,  Christos Gkantsidis ,  Peter Bernard Key ,  Richard Harper ,  Abigail Sellen ,  Timothy Regan ,  Richard M. Banks ,  Ilias Raftopoulos ,  Dharmaiah Manjunath ,  Bozidar Radunovic

IPC: H04W28/08 ,  H04L12/24

CPC classification number: H04L47/14 ,  H04L43/045 ,  H04L43/0882 ,  H04L47/10 ,  H04L47/20 ,  H04L47/25 ,  H04L47/41 ,  H04W28/22 ,  H04W72/04 ,  H04W72/12

Abstract: A resource allocation framework for wireless/wired networks is described. In an embodiment, methods of end host based traffic management are described which operate separately from the underlying access control protocol within the network (e.g. wireless MAC protocol or TCP). The rate limits for each flow are set based on per-flow weights, which may be user specified, and based on an estimate of the utilization of the shared resource and the rate limits are adjusted periodically so that the resource is not underutilized or saturated. Some embodiments compute a virtual capacity of the resource which is adjusted to optimize the value of the utilization and then the virtual capacity is shared between flows according to the per-flow weights. Methods for estimating the utilization of a wireless network and the capacity of a broadband access link are also described.

Abstract translation: 描述了无线/有线网络的资源分配框架。 在一个实施例中，描述了基于终端主机的业务管理的方法，其与网络内的底层访问控制协议（例如，无线MAC协议或TCP）分开工作。 每个流的速率限制基于可以是用户指定的每流量权重，并且基于对共享资源的利用率的估计，并且周期性地调整速率限制，使得资源未被不充分利用或饱和。 一些实施例计算资源的虚拟容量，其被调整以优化利用的值，然后根据每流量权重在流之间共享虚拟容量。 还描述了用于估计无线网络的利用率的方法和宽带接入链路的容量。

公开(公告)号：US08031744B2

公开(公告)日：2011-10-04

申请号：US12404494

申请日：2009-03-16

Applicant: Bozidar Radunovic ,  Nikhil Singh ,  Dinan Srilal Gunawardena ,  Alexandre Proutiere ,  Peter Bernard Key

Inventor： Bozidar Radunovic ,  Nikhil Singh ,  Dinan Srilal Gunawardena ,  Alexandre Proutiere ,  Peter Bernard Key

IPC: H04J1/00

CPC classification number: H04L12/413 ,  H04L1/1607 ,  H04W74/00

Abstract: Full-duplex wireless communication is described. In an embodiment, a transceiver device having a transmitter circuit and a receiver circuit receives a data packet sent over a shared communication medium. In the embodiment, the transceiver reads the header of the data packet and starts transmitting an output signal on the same shared communication medium. Embodiments are described in which, whilst the transmission of the output signal is ongoing, the transceiver receives an impaired data signal which is made up of the payload of the data packet and interference from the output signal. In the embodiment, a cancellation signal is derived from the output signal, and this is combined with the impaired data signal to remove the interference and recover the payload of the data packet.

Abstract translation: 描述了全双工无线通信。 在一个实施例中，具有发射机电路和接收机电路的收发机设备接收通过共享通信介质发送的数据分组。 在实施例中，收发器读取数据分组的报头，并开始在相同的共享通信介质上发送输出信号。 描述了在输出信号的传输正在进行的同时，收发器接收由数据分组的有效载荷和来自输出信号的干扰构成的受损数据信号。 在本实施例中，从输出信号导出消除信号，并将其与受损的数据信号组合以消除干扰并恢复数据分组的有效载荷。

公开(公告)号：US20090124205A1

公开(公告)日：2009-05-14

申请号：US11939217

申请日：2007-11-13

Applicant: Bernard D. Aboba ,  Paramvir Bahl ,  Gopala S. Narlanka ,  Jitendra D. Padhye ,  Bozidar Radunovic ,  Ramachandran Ramjee ,  Kun Tan ,  Miguel Oom Temudo de Castro

Inventor： Bernard D. Aboba ,  Paramvir Bahl ,  Gopala S. Narlanka ,  Jitendra D. Padhye ,  Bozidar Radunovic ,  Ramachandran Ramjee ,  Kun Tan ,  Miguel Oom Temudo de Castro

IPC: H04B17/00

CPC classification number: H04B17/382 ,  H04B17/345

Abstract: A communication device cognitively monitors interference signals across a communication band so that adaptations for physical and medium access control (MAC) of data packet transmissions are appropriate for a particular interference signal. Characteristics of an interference signal of interest (e.g., bandwidth, power and/or duration relative to an average data packet transmitted over a communication channel of the communication device) are sensed for an appropriate adaptation (e.g., forward error correction, modulation technique, back off, request to send/clear to send protocol, etc.). Patterns for known types of interference sources can be compared so that when recognized an associated adaptation can be used.

Abstract translation: 通信设备认知地监测跨通信频带的干扰信号，使得数据分组传输的物理和媒体接入控制（MAC）的适配适用于特定的干扰信号。 感兴趣的干扰信号的特征（例如，相对于在通信设备的通信信道上传输的平均数据分组的带宽，功率和/或持续时间）被适当的适配（例如，前向纠错，调制技术，后向 关闭，请求发送/清除发送协议等）。 可以比较已知类型的干扰源的模式，使得当识别出可以使用相关联的适配时。

公开(公告)号：US20130246608A1

公开(公告)日：2013-09-19

申请号：US13420612

申请日：2012-03-15

Applicant: Zhenming Liu ,  Bozidar Radunovic ,  Milan Vojnovic

Inventor： Zhenming Liu ,  Bozidar Radunovic ,  Milan Vojnovic

IPC: G06F15/173

CPC classification number: H04L43/024 ,  H04L41/069 ,  H04L43/026 ,  H04L43/028

Abstract: Count tracking in distributed environments is described, for example, as in data centers where many sites receive data and a coordinator node estimates a sum of the data received across the sites. Count tracking may be used in database applications, search engines, social networking applications and others. In various embodiments sites and a coordinator node work together to implement a process for summing data received at sites, where the sum takes into account both increments and decrements. In examples, a site decides whether to notify the coordinator node of a new data item according to a sampling probability that is related to an estimate of the current global sum of the data input across sites. In some examples a multi-mode algorithm is implemented which increases or decreases communication between the sites and the coordinator node according to behavior of the estimated global sum such that communications costs are optimized.

Abstract translation: 在分布式环境中的计数跟踪被描述为例如在许多站点接收数据的数据中心，并且协调器节点估计跨站点接收的数据的总和。 计数跟踪可用于数据库应用程序，搜索引擎，社交网络应用程序等。 在各种实施例中，站点和协调器节点一起工作以实现用于对在站点处接收的数据进行求和的过程，其中所述总和考虑了增量和减量。 在示例中，站点根据与跨站点的数据输入的当前全局和的估计相关联的抽样概率来决定是否向协调器节点通知新数据项。 在一些示例中，实现了多模式算法，其根据估计的全局和的行为增加或减少站点和协调器节点之间的通信，使得优化通信成本。