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公开(公告)号：US20090252146A1
公开(公告)日：2009-10-08
申请号：US12061661
申请日：2008-04-03
申请人： Chong Luo , Wei Pu , Feng Wu , Shipeng Li , Chang Wen Chen
发明人： Chong Luo , Wei Pu , Feng Wu , Shipeng Li , Chang Wen Chen
IPC分类号： H04L12/28
CPC分类号： H04B7/15521 , H03M13/1102 , H03M13/2906 , H03M13/3761 , H04L1/0057 , H04L1/0077 , H04L2001/0097
摘要： Described is continuous network coding, in which a relay sends probability data comprising a continuous number for use as parity data. The node receives streams of bits sent from sources towards a destination, and computes the probability data based on current noise data and/or fading data. A selected set of the bits (all or some subset thereof) are combined, e.g., XOR-ed or concatenated, and send to the destination. Phase modulation is performed to convey probability information based on the probability data. The destination demodulates the signal to obtain the probability information, and combines the probability information with the data directly received from sources to perform joint decoding. The number of bits in the set of selected bits may be adaptively chosen based on current channel conditions, e.g., increased when the channel conditions from the sources directly to a destination are poor relative to the channel conditions via the relay.
摘要翻译： 描述了连续网络编码，其中中继发送包括用作奇偶校验数据的连续数字的概率数据。 节点接收从源向目的地发送的比特流，并且基于当前噪声数据和/或衰落数据计算概率数据。 选择的一组位（其全部或某些子集）被组合，例如XOR编辑或级联，并发送到目的地。 执行相位调制以基于概率数据传送概率信息。 目的地解调信号以获得概率信息，并且将概率信息与从源直接接收的数据组合以执行联合解码。 可以基于当前信道条件来自适应地选择所选位组中的比特数，例如，当从源直接到目的地的信道条件相对于经由中继的信道条件差时，增加。
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公开(公告)号：US08305899B2
公开(公告)日：2012-11-06
申请号：US12127838
申请日：2008-05-28
申请人： Chong Luo , Wei Pu , Changwen Chen , Feng Wu
发明人： Chong Luo , Wei Pu , Changwen Chen , Feng Wu
CPC分类号： H04W28/12 , H04L47/10 , H04L47/12 , H04L47/14 , H04L47/17 , H04L47/25 , H04L47/266 , H04L47/29 , H04L47/30 , H04L47/33 , H04L47/35
摘要： A network can include a number of nodes that link a source node to a sink node. When a first node in a network sends a packet to its downstream node, this information is also received at its upstream node. In response to learning that the first node has sent a packet, the upstream node sends another packet to the first node. In essence, a pull-based transmission approach is used to mitigate congestion and address the funneling effect in data transmission networks such as wireless video sensor networks.
摘要翻译： 网络可以包括将源节点链接到汇聚节点的多个节点。 当网络中的第一个节点向其下游节点发送数据包时，也会在其上游节点接收到该信息。 响应于学习第一节点已经发送分组，上游节点向第一节点发送另一分组。 实质上，基于拉式传输方法用于减轻拥塞并解决数据传输网络（如无线视频传感器网络）中的漏斗效应。
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公开(公告)号：US08280671B2
公开(公告)日：2012-10-02
申请号：US12696415
申请日：2010-01-29
IPC分类号： G01R31/00
CPC分类号： G06F15/16
摘要： Techniques for data gathering in large-scale wireless sensor networks are described. A data collection device receives aggregate data from at least one sensor node of a group of N sensor nodes. The aggregate data includes M weighted sums. Each of the M weighted sums includes a respective sum of N products each of which being a product of a respective coefficient and a sensor reading from a respective one of the N sensor nodes. M and N are positive integers and M is less than N. Computation is performed on the aggregate data to recover sensor readings from the N sensor nodes.
摘要翻译： 描述了在大规模无线传感器网络中收集数据的技术。 数据收集装置从一组N个传感器节点的至少一个传感器节点接收聚合数据。 聚合数据包括M个加权和。 M个加权和中的每一个包括N个乘积的相应和，每个N个乘积是相应系数的乘积和从N个传感器节点中的相应一个传感器节点的传感器读数。 M和N是正整数，M小于N.对聚合数据进行计算，以从N个传感器节点恢复传感器读数。
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公开(公告)号：US08204086B2
公开(公告)日：2012-06-19
申请号：US12122749
申请日：2008-05-19
IPC分类号： H04J3/02
CPC分类号： H04B7/15521
摘要： Described herein is technology for, among other things, natural network coding in a wireless mesh network. The technology involves wireless mesh network systems, methods and devices based on the natural network coding. By encoding signals in their natural forms using their channel strengths, more efficient transmission of signals is possible in the wireless mesh network.
摘要翻译： 这里描述的是用于无线网状网络中的自然网络编码的技术。 该技术涉及无线网状网络系统，基于自然网络编码的方法和设备。 通过使用其信道强度对其天然形式的信号进行编码，在无线网状网络中可以进行更有效的信号传输。
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公开(公告)号：US20120121030A1
公开(公告)日：2012-05-17
申请号：US12945741
申请日：2010-11-12
申请人： Chong Luo , Kun Tan , Feng Wu , Hao Cui , Chang Wen Chen
发明人： Chong Luo , Kun Tan , Feng Wu , Hao Cui , Chang Wen Chen
IPC分类号： H04L5/12
CPC分类号： H04L27/3416 , H04L1/005 , H04L1/1812
摘要： A projection code is applied to encode symbols as weighted arithmetic sums of approximately random subsets of binary source bits. Pairs of the symbols are combined to form constellation points, which are sequentially mapped through a constellation to modulate a data signal.
摘要翻译： 应用投影码将符号编码为二进制源比特的近似随机子集的加权算术和。 这些符号的组合被组合以形成星座点，其通过星座顺序映射以调制数据信号。
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公开(公告)号：US20110191496A1
公开(公告)日：2011-08-04
申请号：US12696415
申请日：2010-01-29
IPC分类号： G06F15/16
CPC分类号： G06F15/16
摘要： Techniques for data gathering in large-scale wireless sensor networks are described. A data collection device receives aggregate data from at least one sensor node of a group of N sensor nodes. The aggregate data includes M weighted sums. Each of the M weighted sums includes a respective sum of N products each of which being a product of a respective coefficient and a sensor reading from a respective one of the N sensor nodes. M and N are positive integers and M is less than N. Computation is performed on the aggregate data to recover sensor readings from the N sensor nodes.
摘要翻译： 描述了在大规模无线传感器网络中收集数据的技术。 数据收集装置从一组N个传感器节点的至少一个传感器节点接收聚合数据。 聚合数据包括M个加权和。 M个加权和中的每一个包括N个乘积的相应和，每个N个乘积是相应系数的乘积和从N个传感器节点中的相应一个传感器节点的传感器读数。 M和N是正整数，M小于N.对聚合数据进行计算，以从N个传感器节点恢复传感器读数。
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公开(公告)号：US20090285148A1
公开(公告)日：2009-11-19
申请号：US12122749
申请日：2008-05-19
IPC分类号： H04B7/14
CPC分类号： H04B7/15521
摘要： Described herein is technology for, among other things, natural network coding in a wireless mesh network. The technology involves wireless mesh network systems, methods and devices based on the natural network coding. By encoding signals in their natural forms using their channel strengths, more efficient transmission of signals is possible in the wireless mesh network.
摘要翻译： 这里描述的是用于无线网状网络中的自然网络编码的技术。 该技术涉及无线网状网络系统，基于自然网络编码的方法和设备。 通过使用其信道强度对其天然形式的信号进行编码，在无线网状网络中可以进行更有效的信号传输。
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公开(公告)号：US08971433B2
公开(公告)日：2015-03-03
申请号：US12945741
申请日：2010-11-12
申请人： Chong Luo , Kun Tan , Feng Wu , Hao Cui , Chang Wen Chen
发明人： Chong Luo , Kun Tan , Feng Wu , Hao Cui , Chang Wen Chen
CPC分类号： H04L27/3416 , H04L1/005 , H04L1/1812
摘要： A projection code is applied to encode symbols as weighted arithmetic sums of approximately random subsets of binary source bits. Pairs of the symbols are combined to form constellation points, which are sequentially mapped through a constellation to modulate a data signal.
摘要翻译： 应用投影码将符号编码为二进制源比特的近似随机子集的加权算术和。 这些符号的组合被组合以形成星座点，其通过星座顺序映射以调制数据信号。
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9.发明授权公开(公告)号：US08687530B2
公开(公告)日：2014-04-01
申请号：US12117756
申请日：2008-05-09
申请人： Chong Luo , Han Cheng Lu , Wei Pu , Feng Wu , Chang Wen Chen
发明人： Chong Luo , Han Cheng Lu , Wei Pu , Feng Wu , Chang Wen Chen
CPC分类号： H04W28/06 , H04B7/15521 , H04L47/50 , H04L49/90
摘要： Described is a technology by which a roadside-to-vehicle communication system may be implemented, including via a stateful scheduling with network coding scheme that enhances network capacity. Moving vehicles request and receive data from a roadside access points. Each of the access points operate a stateful scheduling algorithm that serves multiple vehicles by integrating network coding within a timeslot. In one aspect, the state of each vehicle's previously received and retained data is obtained, and used to enhance network capacity by combining as many packets as possible for multiple recipients in network coding.
摘要翻译： 描述了可以通过具有增强网络容量的网络编码方案的有状态调度来实现路边到车辆通信系统的技术。 移动车辆从路边接入点请求并接收数据。 每个接入点通过在时隙内集成网络编码来操作有状态调度算法，该算法为多个车辆提供服务。 在一个方面，获得每个车辆先前接收和保留的数据的状态，并且用于通过在网络编码中为多个接收者组合尽可能多的分组来增强网络容量。
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10.发明申请公开(公告)号：US20090279462A1
公开(公告)日：2009-11-12
申请号：US12117756
申请日：2008-05-09
申请人： Chong Luo , Han Cheng Lu , Wei Pu , Feng Wu , Chang Wen Chen
发明人： Chong Luo , Han Cheng Lu , Wei Pu , Feng Wu , Chang Wen Chen
IPC分类号： H04B7/00
CPC分类号： H04W28/06 , H04B7/15521 , H04L47/50 , H04L49/90
摘要： Described is a technology by which a roadside-to-vehicle communication system may be implemented, including via a stateful scheduling with network coding scheme that enhances network capacity. Moving vehicles request and receive data from a roadside access points. Each of the access points operate a stateful scheduling algorithm that serves multiple vehicles by integrating network coding within a timeslot. In one aspect, the state of each vehicle's previously received and retained data is obtained, and used to enhance network capacity by combining as many packets as possible for multiple recipients in network coding.
摘要翻译： 描述了可以通过具有增强网络容量的网络编码方案的有状态调度来实现路边到车辆通信系统的技术。 移动车辆从路边接入点请求并接收数据。 每个接入点通过在时隙内集成网络编码来操作有状态调度算法，该算法为多个车辆提供服务。 在一个方面，获得每个车辆先前接收和保留的数据的状态，并且用于通过在网络编码中为多个接收者组合尽可能多的分组来增强网络容量。
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