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1.发明授权Method and apparatus for managing admission and routing in multi-hop 802.11 networks taking into consideration traffic shaping at intermediate hops 有权考虑到中间跳的流量整形，用于管理多跳802.11网络中的准入和路由的方法和装置公开(公告)号：US08089970B2
公开(公告)日：2012-01-03
申请号：US11956141
申请日：2007-12-13
申请人： Sean A. Ramprashad , Danjue Li , Ulas C. Kozat , Christine Pepin
发明人： Sean A. Ramprashad , Danjue Li , Ulas C. Kozat , Christine Pepin
CPC分类号： H04L41/5019 , H04L41/0893 , H04L43/0852 , H04L67/322 , H04W28/16 , H04W40/00 , H04W84/12
摘要： A method and a system control admission for voice transmission over a multi-hop network. The method takes multiple parameters into account in order to make a decision and ensures that the system remains stable. The parameters may include options (e.g., aggregation level, bursting level, and transmission rate) and constraints (e.g., the number of users, access points, or sensing range of each user). The method computes the load of the network given each set of options and constraints and compares it against the packetization interval of the voice codec to check whether or not the system is stable. An algorithm of the method finds the best trade-offs between overhead reduction (e.g., due to contention and to packet headers) and a solution robust to channel errors, if links are noisy. If several stable solutions corresponding to different options exist, additional criteria (e.g., the least number of hops, the highest transmission rate) may be used to determine the final “best” solution.
摘要翻译： 一种通过多跳网络进行语音传输的方法和系统控制准入。 该方法考虑到多个参数以作出决定并确保系统保持稳定。 参数可以包括选项（例如，聚合级别，突发级别和传输速率）和约束（例如，用户的数量，接入点或每个用户的感测范围）。 该方法计算给定每组选项和约束的网络的负载，并将其与语音编解码器的分组间隔进行比较，以检查系统是否稳定。 该方法的算法在开销降低（例如，由于争用和分组报头）之间找到最佳的权衡，以及如果链路是嘈杂的，对信道错误的鲁棒性的解决方案。 如果存在对应于不同选项的若干稳定解决方案，则可以使用附加标准（例如，最少跳数，最高传输速率）来确定最终的“最佳”解决方案。
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2.发明申请METHOD AND APPARATUS FOR MANAGING ADMISSION AND ROUTING IN MULTI-HOP 802.11 NETWORKS TAKING INTO CONSIDERATION TRAFFIC SHAPING AT INTERMEDIATE HOPS 有权用于管理多媒体802.11网络中的接入和路由的方法和装置在中间小区中考虑交换形式公开(公告)号：US20080144497A1
公开(公告)日：2008-06-19
申请号：US11956141
申请日：2007-12-13
申请人： Sean A. Ramprashad , Danjue Li , Ulas C. Kozat , Christine Pepin
发明人： Sean A. Ramprashad , Danjue Li , Ulas C. Kozat , Christine Pepin
IPC分类号： G08C15/00
CPC分类号： H04L41/5019 , H04L41/0893 , H04L43/0852 , H04L67/322 , H04W28/16 , H04W40/00 , H04W84/12
摘要： A method and a system control admission for voice transmission over a multi-hop network. The method takes multiple parameters into account in order to make a decision and ensures that the system remains stable. The parameters may include options (e.g., aggregation level, bursting level, and transmission rate) and constraints (e.g., the number of users, access points, or sensing range of each user). The method computes the load of the network given each set of options and constraints and compares it against the packetization interval of the voice codec to check whether or not the system is stable. An algorithm of the method finds the best trade-offs between overhead reduction (e.g., due to contention and to packet headers) and a solution robust to channel errors, if links are noisy. If several stable solutions corresponding to different options exist, additional criteria (e.g., the least number of hops, the highest transmission rate) may be used to determine the final “best” solution.
摘要翻译： 一种通过多跳网络进行语音传输的方法和系统控制准入。 该方法考虑到多个参数以作出决定并确保系统保持稳定。 参数可以包括选项（例如，聚合级别，突发级别和传输速率）和约束（例如，用户的数量，接入点或每个用户的感测范围）。 该方法计算给定每组选项和约束的网络的负载，并将其与语音编解码器的分组间隔进行比较，以检查系统是否稳定。 该方法的算法在开销降低（例如，由于争用和分组报头）之间找到最佳的权衡，以及如果链路是嘈杂的，对信道错误的鲁棒性的解决方案。 如果存在对应于不同选项的若干稳定解决方案，则可以使用附加标准（例如，最少跳数，最高传输速率）来确定最终的“最佳”解决方案。
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公开(公告)号：US08339948B2
公开(公告)日：2012-12-25
申请号：US11531384
申请日：2006-09-13
IPC分类号： H04J3/14
摘要： Wireless access efficiency is improved in a multi-hop, multiple-flow network by optimizing multi-flows over the entire network using joint routing and traffic-shaping techniques at intermediate hops. Even though the joint routing and traffic-shaping techniques may adversely affect flows at some hops, when considered over multiple hops (for a given flow) and over multiple flows (for a given hop or number of hops), significant performance may be achieved for all flows. System performance is achieved by controlling the routing paths of multiple flows in a multi-hop, multi-flow wireless network, and applying traffic shaping in a systematic way, rather than relying on an opportunistic (i.e., randomly or independently optimized) approach.
摘要翻译： 通过使用中间跳的联合路由和流量整形技术在整个网络上优化多流，在多跳，多流网络中提高无线接入效率。 尽管联合路由和流量整形技术可能会对某些跳跃的流量产生不利影响，但在多跳（对于给定的流量）和多个流量（对于给定的跳数或跳数）进行考虑时，可能会实现显着的性能 所有流。 通过控制多跳，多流无线网络中的多个流的路由路径，并以系统的方式应用流量整形，而不是依靠机会主义（即随机或独立优化）方法来实现系统性能。
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4.发明申请METHOD AND APPARATUS FOR PRIORITIZED INFORMATION DELIVERY WITH NETWORK CODING OVER TIME-VARYING NETWORK TOPOLOGIES 有权用于通过网络编码进行改进的信息交付的时变网络拓扑的方法和装置公开(公告)号：US20080225751A1
公开(公告)日：2008-09-18
申请号：US12040653
申请日：2008-02-29
申请人： Ulas C. Kozat , Christine Pepin , Haralabos Papadopoulos , Sean A. Ramprashad , Carl-Erik W. Sundberg
发明人： Ulas C. Kozat , Christine Pepin , Haralabos Papadopoulos , Sean A. Ramprashad , Carl-Erik W. Sundberg
IPC分类号： H04L12/28
CPC分类号： H04W40/12 , H04L12/1881 , H04L41/12 , H04L41/5003 , H04L41/5054 , H04L45/14 , H04L45/16 , H04L45/30 , H04L45/38 , H04L47/10 , H04L47/125 , H04L47/15 , H04L47/24 , H04L47/2408 , H04L47/2441 , H04L47/38 , H04L47/6215
摘要： A method and apparatus is disclosed herein for information delivery with network coding over time-varying network topologies. In one embodiment, the method comprises decomposing a sequence of topology graphs that model a time-varying network topology into a plurality of virtual graphs, where each virtual graph of the plurality of virtual graphs corresponds to a distinct traffic class, and the virtual topology graph representing a partial topology of a time-varying network. The method also includes selecting a network code for each virtual graph in the plurality of the virtual graphs to meet requirements of the distinct traffic class corresponding to said each topology graph, where the network code is used to encode packets of the associated traffic class, and processing packets of each traffic class using the network code determined by its corresponding virtual topology and the requirements of said each traffic class, including using a virtual buffer system to implement the network code corresponding to each traffic class over the physical network topology. The method also includes using a scheduler to determine the transmission schedules for each output packet from the virtual buffer system of each traffic class where the scheduling decisions are based, at least in part, on the QoS requirements of each class.
摘要翻译： 本文公开了一种用于通过随时间变化的网络拓扑进行网络编码的信息传递的方法和装置。 在一个实施例中，该方法包括分解将时变网络拓扑建模成多个虚拟图的拓扑图序列，其中多个虚拟图中的每个虚拟图对应于不同的流量类别，虚拟拓扑图 代表时变网络的部分拓扑。 该方法还包括为多个虚拟图中的每个虚拟图选择网络代码以满足对应于所述每个拓扑图的不同流量类别的要求，其中网络代码用于对相关联的流量类别的分组进行编码;以及 使用由其对应的虚拟拓扑确定的网络代码和所述每个流量类别的要求来处理每个流量类别的分组，包括使用虚拟缓冲器系统来实现通过物理网络拓扑对应于每个流量类别的网络代码。 该方法还包括使用调度器至少部分地基于每个类的QoS要求来确定来自调度决策所基于的每个业务类别的虚拟缓冲器系统的每个输出分组的传输调度。
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公开(公告)号：US20080089333A1
公开(公告)日：2008-04-17
申请号：US11873248
申请日：2007-10-16
申请人： Ulas C. Kozat , Haralabos Papadopoulos , Christine Pepin , Sean A. Ramprashad , Carl-Erik W. Sundberg
发明人： Ulas C. Kozat , Haralabos Papadopoulos , Christine Pepin , Sean A. Ramprashad , Carl-Erik W. Sundberg
IPC分类号： H04L12/56
CPC分类号： H04L45/123 , H04L1/004 , H04L1/1607 , H04L41/0816 , H04L41/083 , H04L41/12 , H04L41/5022 , H04L45/02 , H04L45/28 , H04L2001/0093
摘要： A method and apparatus is disclosed herein for delivering information over time-varying networks. In one embodiment, the method comprises, for each of a plurality of time intervals, determining a virtual network topology for use over each time interval; selecting for the time interval based on the virtual network topology, a fixed network code for use during the time interval; and coding information to be transmitted over the time-varying network topology using the fixed network code with necessary virtual buffering at each node.
摘要翻译： 本文公开了一种用于通过时变网络递送信息的方法和装置。 在一个实施例中，对于多个时间间隔中的每一个，所述方法包括：确定虚拟网络拓扑以在每个时间间隔内使用; 基于虚拟网络拓扑选择时间间隔，在时间间隔期间使用固定网络代码; 以及使用固定网络代码通过时变网络拓扑传输的编码信息，并在每个节点具有必要的虚拟缓冲。
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6.发明授权公开(公告)号：US08705484B2
公开(公告)日：2014-04-22
申请号：US12538739
申请日：2009-08-10
CPC分类号： H04W52/34 , H04L5/0007 , H04L5/0032 , H04W16/30
摘要： A method and apparatus is disclosed herein for varying transmit power patterns in a multi-cell wireless transmission environment. In one embodiment, the method comprises varying transmit power coordination patterns for base stations in the wireless communication system to jointly vary base station power over a set of virtual channels over base stations within a cluster and across clusters of base stations; and jointly transmitting by groups of the base stations to one or more user terminals in their respective clusters based on the transmit power coordination patterns.
摘要翻译： 本文公开了一种在多小区无线传输环境中改变发射功率模式的方法和装置。 在一个实施例中，该方法包括改变无线通信系统中的基站的发射功率协调模式，以在群集内和跨基站群上的基站上共同改变在一组虚拟信道上的基站功率; 并且基于所述发射功率协调模式，将所述基站的组共同发送到其各自的集群中的一个或多个用户终端。
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7.发明申请公开(公告)号：US20100041408A1
公开(公告)日：2010-02-18
申请号：US12538739
申请日：2009-08-10
CPC分类号： H04W52/34 , H04L5/0007 , H04L5/0032 , H04W16/30
摘要： A method and apparatus is disclosed herein for varying transmit power patterns in a multi-cell wireless transmission environment. In one embodiment, the method comprises varying transmit power coordination patterns for base stations in the wireless communication system to jointly vary base station power over a set of virtual channels over base stations within a cluster and across clusters of base stations; and jointly transmitting by groups of the base stations to one or more user terminals in their respective clusters based on the transmit power coordination patterns.
摘要翻译： 本文公开了一种在多小区无线传输环境中改变发射功率模式的方法和装置。 在一个实施例中，该方法包括改变无线通信系统中的基站的发射功率协调模式，以在群集内和跨基站群上的基站上共同改变在一组虚拟信道上的基站功率; 并且基于所述发射功率协调模式，将所述基站的组共同发送到其各自的集群中的一个或多个用户终端。
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公开(公告)号：US06982939B2
公开(公告)日：2006-01-03
申请号：US10012257
申请日：2001-11-08
申请人： Judith C. Powelson , David K. Warland , Ian E. Harvey , Yung-Cheng Lo , Christine Pepin , Steven R. Spielman , Ting Zhou , Jonathan A. Zingman
发明人： Judith C. Powelson , David K. Warland , Ian E. Harvey , Yung-Cheng Lo , Christine Pepin , Steven R. Spielman , Ting Zhou , Jonathan A. Zingman
IPC分类号： G11B5/09
CPC分类号： G11B7/126 , G11B7/0045 , G11B7/14 , G11B20/10009 , G11B20/10055 , G11B20/10194
摘要： Methods and systems for write compensation for optimizing the performance of a data storage or communication channel are disclosed. In one embodiment, a method comprises determining channel sensitivity to modifications in write signal parameters, detecting systematic errors in a read signal recovered from data written with a first set of write parameters, and adjusting the write signal parameters by an amount determined from the channel sensitivity such that the systematic errors are reduced when data are written with the adjusted write parameters.
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公开(公告)号：US07295549B2
公开(公告)日：2007-11-13
申请号：US10366944
申请日：2003-02-14
申请人： Christine Pepin , Johnny Matta , Khosrow Lashkari , Ravi Jain
发明人： Christine Pepin , Johnny Matta , Khosrow Lashkari , Ravi Jain
IPC分类号： H04L12/56
CPC分类号： H04L65/608 , H04L1/0009 , H04L1/0014 , H04L1/0017 , H04L29/06027 , H04L47/2416 , H04L65/607 , H04L65/80 , H04M7/006
摘要： A coding system and method for a terminal including a multi-rate codec is disclosed. The terminal includes a multi-rate adaptive coder that is capable of transmitting a continuous voice stream transmission at a source code bit rate and a channel code bit rate. A quality of service probing module probes an end-to-end network path of the continuous voice stream transmission to obtain at least one quality of service parameter. A quality of service management module determines at least one constraint associated with the continuous voice stream transmission. An adaptive bit rate algorithm module dynamically adjusts the source code bit rate and the channel code bit rate as a function of the quality of service parameter and the constraint to obtain a maximum value of perceived user performance during the continuous voice stream transmission.
摘要翻译： 公开了一种包括多速率编解码器的终端的编码系统和方法。 终端包括能够以源码比特率和信道码比特率发送连续语音流传输的多速率自适应编码器。 服务质量探测模块探测连续语音流传输的端到端网络路径，以获得至少一个服务质量参数。 服务质量管理模块确定与连续语音流传输相关联的至少一个约束。 自适应比特率算法模块根据服务质量参数动态地调整源码比特率和信道码比特率，以及在连续语音流传输期间获得感知用户性能的最大值的约束。
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公开(公告)号：US20070091805A1
公开(公告)日：2007-04-26
申请号：US11531384
申请日：2006-09-13
申请人： Sean Ramprashad , Christine Pepin , Ulas Kozat
发明人： Sean Ramprashad , Christine Pepin , Ulas Kozat
摘要： Wireless access efficiency is improved in a multi-hop, multiple-flow network by optimizing multi-flows over the entire network. This approach also benefits individual flows. These mechanisms apply joint routing and traffic-shaping techniques to multiple-flows at intermediate hops. Even though the routing and traffic-shaping techniques may adversely affect flows at some hops, when considered over multiple hops (for a given flow) and over multiple flows (for a given hop or number of hops), significant performance may be achieved for all flows. System performance is achieved by controlling the routing paths of multiple flows in a multi-hop, multi-flow wireless network, and applying traffic shaping in a systematic way, rather than relying on an opportunistic (i.e., randomly or independently optimized) approach. In a multi-hop environment, additional advantages of transparency to both the originating application (at the application layer) and terminating application (at the application layer) are achieved.
摘要翻译： 通过优化整个网络上的多流，在多跳，多流网络中提高了无线接入效率。 这种方法也有利于个人流动。 这些机制将联合路由和流量整形技术应用于中间跳的多流。 尽管路由和流量整形技术可能会对某些跳跃的流量造成不利影响，但是在多跳（对于给定流量）和多个流量（对于给定的跳数或跳数）来说）时，可以对所有的流量实现显着的性能 流动。 通过控制多跳，多流无线网络中的多个流的路由路径，并以系统的方式应用流量整形，而不是依靠机会主义（即随机或独立优化）方法来实现系统性能。 在多跳环境中，实现了始发应用（在应用层）和终止应用（在应用层）的透明度的附加优点。
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