公开(公告)号：US09948769B2

公开(公告)日：2018-04-17

申请号：US14669167

申请日：2015-03-26

申请人： Amin Emad ,  Carl J. Nuzman ,  Emina Soljanin

发明人： Amin Emad ,  Carl J. Nuzman ,  Emina Soljanin

IPC分类号： H04M1/76 ,  H04M3/34 ,  H04M11/06 ,  H04B3/32 ,  H04M1/64 ,  H04M3/22

CPC分类号： H04M3/34 ,  H04B3/32 ,  H04M3/2209 ,  H04M11/062

摘要： At least one example embodiment discloses a method of determining crosstalk for at least one first line in a communication system having a plurality of second lines. The method includes obtaining at least one pilot matrix representing a sequence of pilot signals and transmitting pilot signals across the plurality of second lines in accordance with the at least one pilot matrix. The method further includes obtaining measurement vectors for the at least one first line on a plurality of subcarriers, in response to the transmitted pilot signals, determining a weighted vector, the weighted vector being a weighted combination of the measurement vectors and determining a crosstalk coupling vector based on the determined weighted vector.

公开(公告)号：US20150350415A1

公开(公告)日：2015-12-03

申请号：US14292168

申请日：2014-05-30

申请人： Carl J. NUZMAN ,  Antonia TULINO ,  Emina SOLJANIN

发明人： Carl J. NUZMAN ,  Antonia TULINO ,  Emina SOLJANIN

IPC分类号： H04M3/00 ,  H04M3/34

CPC分类号： H04M3/34 ,  H04B3/32 ,  H04M11/062

摘要： At least one example embodiment discloses a method of determining crosstalk for a joining line in a communication system having a plurality of current active lines. The method includes obtaining a number of disturber lines among the plurality of current active lines, the number of disturber lines being less than a number of the plurality of current active lines, obtaining a pilot matrix, a first dimension of the pilot matrix being based on the number of disturber lines, the pilot matrix representing a sequence of pilots to be transmitted across the plurality of current active lines and the joining line, the first dimension being a number of time instances, the number of time instances being less than the number of the plurality of active lines and determining a crosstalk coupling vector for the joining line based on the pilot matrix.

摘要翻译： 至少一个示例性实施例公开了一种确定具有多个当前活动线的通信系统中的接合线的串扰的方法。 该方法包括获得多个当前有效线路中的多个干扰线路，干扰线路的数量小于多个当前有效线路的数量，获得导频矩阵，导频矩阵的第一维度基于 干扰线的数量，导频矩阵表示要跨越多个当前活动线路和接合线路发送的导频序列，第一维度是多个时间实例，时间实例的数量小于 多个有源线，并且基于导频矩阵确定用于接合线的串扰耦合矢量。

公开(公告)号：US20140186030A1

公开(公告)日：2014-07-03

申请号：US13730131

申请日：2012-12-28

申请人： Peter J. Winzer ,  Kyle C. Guan ,  Emina Soljanin

发明人： Peter J. Winzer ,  Kyle C. Guan ,  Emina Soljanin

IPC分类号： H04B10/07 ,  G02B6/02

CPC分类号： H04B10/0705 ,  G02B6/02042 ,  G02B6/02342

摘要： Various embodiments provide for detection of tapping of an optical signal. In one embodiment an optical fiber includes a cladding region and first and second core regions. The first core region has a first core medium having a first mode-dependent loss (MDL) figure of merit. The second core region has a second core medium having a second different MDL figure of merit. Tapping of the optical signal may be determined to occur when the MDL of the first and second optical signals differs by a predetermined threshold value.

摘要翻译： 各种实施例提供了检测光信号的敲击。 在一个实施例中，光纤包括包层区域和第一和第二核心区域。 第一核心区域具有第一核心介质，其具有第一模式相关损耗（MDL）品质因数。 第二核心区域具有具有第二不同MDL品质因数的第二核心介质。 当第一和第二光信号的MDL相差预定阈值时，可以确定发生光信号的敲击。

公开(公告)号：US07669103B2

公开(公告)日：2010-02-23

申请号：US11418158

申请日：2006-05-03

申请人： Emina Soljanin ,  Nedeljko Varnica ,  Philip Alfred Whiting

发明人： Emina Soljanin ,  Nedeljko Varnica ,  Philip Alfred Whiting

IPC分类号： H03M13/35

CPC分类号： H04L1/1819 ,  H04L1/0002 ,  H04L1/0057 ,  H04L1/0069 ,  H04L1/1671

摘要： Significant improvement in Raptor codes and punctured LDPC codes are obtainable by use of the invention. In both a transmission scheme for Raptor-encoded or LDPC-encoded information, a dynamic adjustment approach is employed. A fraction of a codeword or information frame is transmitted. A feedback signal is sent from the receiver to the transmitter indicating either 1) successful decoding, or 2) failure to decode and/or a feedback signal indicative of a statistical measure of transmission channel quality. If decoding fails, a further portion of the codeword or frame is sent. The intensity and/or size of the fraction is adjusted based on the feedback signal. In one embodiment, a specific range for probabilities employed in the encoding process for Raptor codes provides the ability to increase transmission throughput. Further it has been found that the advantageous Raptor codes are useful in noise conditions where even the improved punctured LDPC codes of the invention begin to degrade.

摘要翻译： 通过使用本发明可获得猛禽码和穿孔LDPC码的显着改进。 在用于Raptor编码或LDPC编码信息的传输方案中，采用动态调整方法。 发送码字或信息帧的一小部分。 反馈信号从接收机发送到发射机，指示1）成功解码，或2）解码失败和/或指示传输信道质量的统计测量的反馈信号。 如果解码失败，则发送码字或帧的另一部分。 基于反馈信号调整分数的强度和/或尺寸。 在一个实施例中，针对猛禽码的编码处理中采用的概率的特定范围提供了提高传输吞吐量的能力。 此外，已经发现，有利的Raptor码在其中甚至本发明的改进的穿孔LDPC码开始降级的噪声条件下是有用的。

公开(公告)号：US20050182994A1

公开(公告)日：2005-08-18

申请号：US10778765

申请日：2004-02-13

申请人： Alexei Ashikhmin ,  Adriaan Van Wijngaarden ,  Nandu Gopalakrishnan ,  Jaehyeong Kim ,  Emina Soljanin

发明人： Alexei Ashikhmin ,  Adriaan Van Wijngaarden ,  Nandu Gopalakrishnan ,  Jaehyeong Kim ,  Emina Soljanin

IPC分类号： H03M13/47 ,  H04L1/16 ,  H04L1/18 ,  H04L1/20

CPC分类号： H04L1/1819 ,  H04L1/1845 ,  H04L1/20

摘要： A method is provided to accurately predict the probability of successfully recovering frames of (coded) information received over a wireless link, without having to decode the frame. This method, which consists of three steps, requires only limited information about the received signals and the forward error correction code and retransmission scheme being used. First, the signal to noise ratio (SNR) of each of the received signals is measured, where the average SNR is determined for multiple segments that together constitute the frame. Next, an algorithm is employed that takes these SNR values as inputs and determines the so-called effective SNR. The algorithm translates the measured SNR values using an appropriate convex metric, and subsequently combines the resulting values, thereby factoring in the effects of fading, multi-path, and other signal degradations. In the third stage, the effective SNR is used to determine the frame error rate by using a look-up table of a single reference curve that specifies the frame error rate of the actual error control code over an additive white Gaussian noise channel. This suffices to accurately predict the performance of a wide range of mobile communication channels. This method can be applied to a variety of retransmission strategies, including hybrid automatic-repeat request (ARQ) and incremental redundancy (IR) and combinations of these two strategies.

摘要翻译： 提供了一种方法来准确地预测成功地恢复通过无线链路接收的（编码）信息的帧的概率，而不必对帧进行解码。 该方法由三个步骤组成，仅需要关于接收到的信号以及所使用的前向纠错码和重传方案的有限信息。 首先，测量每个接收信号的信噪比（SNR），其中对于一起构成帧的多个段确定平均SNR。 接下来，采用将这些SNR值作为输入并且确定所谓的有效SNR的算法。 该算法使用适当的凸度量翻译所测量的SNR值，并且随后组合所得到的值，从而考虑到衰落，多路径和其他信号劣化的影响。 在第三阶段中，通过使用单个参考曲线的查找表来确定帧错误率来确定有效SNR，该参考曲线通过加性高斯白噪声信道指定实际错误控制码的帧错误率。 这足以准确地预测各种移动通信信道的性能。 该方法可以应用于各种重传策略，包括混合自动重传请求（ARQ）和增量冗余（IR）以及这两种策略的组合。

公开(公告)号：US09258410B2

公开(公告)日：2016-02-09

申请号：US14292168

申请日：2014-05-30

申请人： Carl J. Nuzman ,  Antonia Tulino ,  Emina Soljanin

发明人： Carl J. Nuzman ,  Antonia Tulino ,  Emina Soljanin

IPC分类号： H04M9/08 ,  H04M3/00 ,  H04M3/34

CPC分类号： H04M3/34 ,  H04B3/32 ,  H04M11/062

摘要： At least one example embodiment discloses a method of determining crosstalk for a joining line in a communication system having a plurality of current active lines. The method includes obtaining a number of disturber lines among the plurality of current active lines, the number of disturber lines being less than a number of the plurality of current active lines, obtaining a pilot matrix, a first dimension of the pilot matrix being based on the number of disturber lines, the pilot matrix representing a sequence of pilots to be transmitted across the plurality of current active lines and the joining line, the first dimension being a number of time instances, the number of time instances being less than the number of the plurality of active lines and determining a crosstalk coupling vector for the joining line based on the pilot matrix.

摘要翻译： 至少一个示例性实施例公开了一种确定具有多个当前活动线的通信系统中的接合线的串扰的方法。 该方法包括获得多个当前有效线路中的多个干扰线路，干扰线路的数量小于多个当前有效线路的数量，获得导频矩阵，导频矩阵的第一维度基于 干扰线的数量，导频矩阵表示要跨越多个当前活动线路和接合线路发送的导频序列，第一维度是多个时间实例，时间实例的数量小于 多个有源线，并且基于导频矩阵确定用于接合线的串扰耦合矢量。

公开(公告)号：US09172461B2

公开(公告)日：2015-10-27

申请号：US13730131

申请日：2012-12-28

申请人： Peter J. Winzer ,  Kyle C. Guan ,  Emina Soljanin

发明人： Peter J. Winzer ,  Kyle C. Guan ,  Emina Soljanin

IPC分类号： G02B6/26 ,  H04B10/07 ,  G02B6/02

CPC分类号： H04B10/0705 ,  G02B6/02042 ,  G02B6/02342

摘要： Various embodiments provide for detection of tapping of an optical signal. In one embodiment an optical fiber includes a cladding region and first and second core regions. The first core region has a first core medium having a first mode-dependent loss (MDL) figure of merit. The second core region has a second core medium having a second different MDL figure of merit. Tapping of the optical signal may be determined to occur when the MDL of the first and second optical signals differs by a predetermined threshold value.

摘要翻译： 各种实施例提供了检测光信号的敲击。 在一个实施例中，光纤包括包层区域和第一和第二核心区域。 第一核心区域具有第一核心介质，其具有第一模式相关损耗（MDL）品质因数。 第二核心区域具有具有第二不同MDL品质因数的第二核心介质。 当第一和第二光信号的MDL相差预定阈值时，可以确定发生光信号的敲击。

公开(公告)号：US20120207209A1

公开(公告)日：2012-08-16

申请号：US13024509

申请日：2011-02-10

申请人： Silvija Kokalj-Filipovic ,  Emina Soljanin

发明人： Silvija Kokalj-Filipovic ,  Emina Soljanin

IPC分类号： H04N7/26

CPC分类号： H03M7/30 ,  H04L1/0009 ,  H04L1/0014 ,  H04L1/0042 ,  H04N19/124 ,  H04N19/176 ,  H04N19/39

摘要： A transmitter, receiver and method for mitigating the cliff effect for content delivery over a heterogeneous network. In one embodiment, the transmitter includes: (1) a joint encoder configured to receive a content unit and generate multiple quantized representations thereof and (2) an erasing quantizer associated with the joint encoder and configured to select, from uncoded symbols representing the content unit, multiple subsets of the uncoded symbols. The multiple quantized representations and the multiple subsets of the uncoded symbols are associated to form multiple, independently quantized, correlated descriptions of the content unit. Two design parameters may be employed to control the level of correlation. In one embodiment, the receiver includes: (1) a joint decoder configured to decode quantized representations extracted from received descriptions representing a content unit and (2) a summing junction associated with the joint decoder and configured to employ at least one uncoded symbol representing the content unit to compensate for at least one corresponding symbol that the joint decoder failed to decode.

摘要翻译： 一种用于减轻跨异构网络内容传送的悬崖效应的发射机，接收机和方法。 在一个实施例中，发射机包括：（1）联合编码器，其被配置为接收内容单元并生成其多个量化表示，以及（2）与联合编码器相关联的擦除量化器，并且被配置为从表示内容单元的未编码符号 ，未编码符号的多个子集。 多个量化表示和未编码符号的多个子集相关联以形成内容单元的多个独立量化的相关描述。 可以采用两个设计参数来控制相关度。 在一个实施例中，接收机包括：（1）联合解码器，其被配置为对从表示内容单元的接收到的描述中提取的量化表示进行解码;以及（2）与联合解码器相关联的加法结，并且被配置为使用至少一个未编码符号， 内容单元来补偿联合解码器无法解码的至少一个对应符号。

公开(公告)号：US06678406B1

公开(公告)日：2004-01-13

申请号：US09491551

申请日：2000-01-26

申请人： Aleksandra Mojsilovic ,  Emina Soljanin

发明人： Aleksandra Mojsilovic ,  Emina Soljanin

IPC分类号： G06K900

CPC分类号： H04N1/644

摘要： A method for assigning a color symbol to an image pixel comprises selecting a luminance value from a discrete set of quantized luminance values; selecting a chrominance value from an ordered discrete set of quantized chrominance values; and composing a color symbol from an index of the selected luminance value and an index of an ordinal position of the selected chrominance value. In particular embodiments of the invention, each discrete chrominance value is selected from a Fibonacci lattice on a constant-luminance plane in a perceptually uniform color space such as Lab or Luv.

摘要翻译： 用于将颜色符号分配给图像像素的方法包括从离散的量化亮度值集合中选择亮度值; 从有序离散的量化色度值集合中选择色度值; 以及从所选择的亮度值的索引和所选色度值的顺序位置的索引构成颜色符号。 在本发明的特定实施例中，每个离散色度值从感知上均匀的色彩空间（例如Lab或Luv）中的恒亮度平面上的斐波纳契晶格中选择。

公开(公告)号：US20070260957A1

公开(公告)日：2007-11-08

申请号：US11418158

申请日：2006-05-03

申请人： Emina Soljanin ,  Nedeljko Varnica ,  Philip Whiting

发明人： Emina Soljanin ,  Nedeljko Varnica ,  Philip Whiting

IPC分类号： H03M13/00

CPC分类号： H04L1/1819 ,  H04L1/0002 ,  H04L1/0057 ,  H04L1/0069 ,  H04L1/1671

摘要： Significant improvement in Raptor codes and punctured LDPC codes are obtainable by use of the invention. In both a transmission scheme for Raptor-encoded or LDPC-encoded information, a dynamic adjustment approach is employed. A fraction of a codeword or information frame is transmitted. A feedback signal is sent from the receiver to the transmitter indicating either 1) successful decoding, or 2) failure to decode and/or a feedback signal indicative of a statistical measure of transmission channel quality. If decoding fails, a further portion of the codeword or frame is sent. The intensity and/or size of the fraction is adjusted based on the feedback signal. In one embodiment, a specific range for probabilities employed in the encoding process for Raptor codes provides the ability to increase transmission throughput. Further it has been found that the advantageous Raptor codes are useful in noise conditions where even the improved punctured LDPC codes of the invention begin to degrade.

摘要翻译： 通过使用本发明可获得猛禽码和穿孔LDPC码的显着改进。 在用于Raptor编码或LDPC编码信息的传输方案中，采用动态调整方法。 发送码字或信息帧的一小部分。 反馈信号从接收机发送到发射机，指示1）成功解码，或2）解码失败和/或指示传输信道质量的统计测量的反馈信号。 如果解码失败，则发送码字或帧的另一部分。 基于反馈信号调整分数的强度和/或尺寸。 在一个实施例中，针对猛禽码的编码处理中采用的概率的特定范围提供了提高传输吞吐量的能力。 此外，已经发现，有利的Raptor码在其中甚至本发明的改进的穿孔LDPC码开始降级的噪声条件中是有用的。