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1.发明授权公开(公告)号：US08599903B2
公开(公告)日：2013-12-03
申请号：US12869875
申请日：2010-08-27
申请人： Brandon P. Hombs , John A. Tranquilli, Jr. , Joseph A. Farkas , Leonard E. Russo , Joshua D Niedzwiecki
发明人： Brandon P. Hombs , John A. Tranquilli, Jr. , Joseph A. Farkas , Leonard E. Russo , Joshua D Niedzwiecki
IPC分类号： H04B1/707
CPC分类号： H03H21/0012 , H03H2021/005 , H03H2021/0052 , H03H2220/04
摘要： A QR-RLS adaptive digital filter provides fast computation without excessive computational resources. 18-bit multipliers enhance speed, and a floating point inverse square root block adjusts dynamic range in 12-dB steps. A memory stores two P-matrix copies, one being delivered with rows shifted according to the clock speed so as to enhance pipeline processing. Embodiments reliably detect modulation schemes, demodulate strong signals by passing feedback bits between multiple stages, remove impulses due to lightening, etc, erase symbol estimates which exceed an error threshold, and add high frequency noise to avoid mathematical divergence caused by excessive S/N. A genetic method is provided for identifying asynchronous spreading codes with minimum correlations, whereby randomly selected candidates compete based on Frobenius norms of their correlations, the weakest being discarded and the process being iterated. A method is provided for selecting optimal filter sampling windows for simultaneously detected symbol streams having relative timing delays.
摘要翻译： QR-RLS自适应数字滤波器提供快速计算而不需要过多的计算资源。 18位乘法器提高速度，并且浮点反平方根块以12分贝的步长调整动态范围。 存储器存储两个P矩阵副本，一个被传送，根据时钟速度移位，以便增强流水线处理。 实施例可靠地检测调制方案，通过在多级之间传递反馈比特来解调强信号，消除由于减轻引起的脉冲等，消除超过误差阈值的符号估计，并且增加高频噪声以避免由于过大的S / N引起的数学发散。 提供遗传方法用于识别具有最小相关性的异步扩展码，由此随机选择的候选者基于其相关性的Frobenius规范进行竞争，最弱的被舍弃并且迭代的过程。 提供了一种用于选择用于具有相对定时延迟的同时检测到的符号流的最佳滤波器采样窗口的方法。
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公开(公告)号：US20120051475A1
公开(公告)日：2012-03-01
申请号：US12869875
申请日：2010-08-27
申请人： Brandon P. Hombs , John A. Tranquilli, JR. , Joseph A. Farkas , Leonard E. Russo , Joshua D Niedzwiecki
发明人： Brandon P. Hombs , John A. Tranquilli, JR. , Joseph A. Farkas , Leonard E. Russo , Joshua D Niedzwiecki
IPC分类号： H04B1/10
CPC分类号： H03H21/0012 , H03H2021/005 , H03H2021/0052 , H03H2220/04
摘要： A QR-RLS adaptive digital filter provides fast computation without excessive computational resources. 18-bit multipliers enhance speed, and a floating point inverse square root block adjusts dynamic range in 12-dB steps. A memory stores two P-matrix copies, one being delivered with rows shifted according to the clock speed so as to enhance pipeline processing. Embodiments reliably detect modulation schemes, demodulate strong signals by passing feedback bits between multiple stages, remove impulses due to lightening, etc, erase symbol estimates which exceed an error threshold, and add high frequency noise to avoid mathematical divergence caused by excessive S/N. A genetic method is provided for identifying asynchronous spreading codes with minimum correlations, whereby randomly selected candidates compete based on Frobenius norms of their correlations, the weakest being discarded and the process being iterated. A method is provided for selecting optimal filter sampling windows for simultaneously detected symbol streams having relative timing delays.
摘要翻译： QR-RLS自适应数字滤波器提供快速计算而不需要过多的计算资源。 18位乘法器提高速度，并且浮点反平方根块以12分贝的步长调整动态范围。 存储器存储两个P矩阵副本，一个被传送，根据时钟速度移位，以便增强流水线处理。 实施例可靠地检测调制方案，通过在多级之间传递反馈比特来解调强信号，消除由于减轻引起的脉冲等，消除超过误差阈值的符号估计，并且增加高频噪声以避免由于过大的S / N引起的数学发散。 提供遗传方法用于识别具有最小相关性的异步扩展码，由此随机选择的候选者基于其相关性的Frobenius规范进行竞争，最弱的被舍弃并且迭代的过程。 提供了一种用于选择用于具有相对定时延迟的同时检测到的符号流的最佳滤波器采样窗口的方法。
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3.发明授权Power aware scheduling and power control techniques for multiuser detection enabled wireless mobile ad-hoc networks 有权功率感知调度和功率控制技术，用于多用户检测启用的无线移动自组织网络公开(公告)号：US08958316B2
公开(公告)日：2015-02-17
申请号：US12932318
申请日：2011-02-23
CPC分类号： H04W52/241 , H04W52/30 , H04W52/34
摘要： What is provided is a system for maintaining acceptable error rates in a MUD-enabled ad-hoc network. In this system the power spread associated with all of the nodes is maintained within the dynamic range of the system, for instance 30 dB. Also, the signal-to-noise ratio at an intended receiver is maintained above a predetermined minimum SNR, for instance above 5 dB. If the dynamic range rule is not met, then the power at the transmitting node is attenuated such that the dynamic range rule is met, checking to see that the minimum SNR rule is also met, or the transmission from this node is pulled. If there is no power control solution, then power aware scheduling is applied. Alternatively, only power aware scheduling is utilized.
摘要翻译： 提供的是用于在启用MUD的自组织网络中维持可接受的错误率的系统。 在该系统中，与所有节点相关联的功率扩展保持在系统的动态范围内，例如30dB。 此外，预期接收机处的信噪比保持在预定的最小SNR之上，例如高于5dB。 如果不满足动态范围规则，则发送节点的功率被衰减，使得满足动态范围规则，检查是否也满足最小SNR规则，或者从该节点的传输被拉出。 如果没有电源控制解决方案，则应用功率感知调度。 或者，仅使用功率感知调度。
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4.发明申请Power aware scheduling and power control techniques for multiuser detection enabled wireless mobile ad-hoc networks 有权功率感知调度和功率控制技术，用于多用户检测启用的无线移动自组织网络公开(公告)号：US20120250595A1
公开(公告)日：2012-10-04
申请号：US12932318
申请日：2011-02-23
CPC分类号： H04W52/241 , H04W52/30 , H04W52/34
摘要： What is provided is a system for maintaining acceptable error rates in a MUD-enabled ad-hoc network. In this system the power spread associated with all of the nodes is maintained within the dynamic range of the system, for instance 30 dB. Also, the signal-to-noise ratio at an intended receiver is maintained above a predetermined minimum SNR, for instance above 5 dB. If the dynamic range rule is not met, then the power at the transmitting node is attenuated such that the dynamic range rule is met, checking to see that the minimum SNR rule is also met, or the transmission from this node is pulled. If there is no power control solution, then power aware scheduling is applied. Alternatively, only power aware scheduling is utilized.
摘要翻译： 提供的是用于在启用MUD的自组织网络中维持可接受的错误率的系统。 在该系统中，与所有节点相关联的功率扩展保持在系统的动态范围内，例如30dB。 此外，预期接收机处的信噪比保持在预定的最小SNR之上，例如高于5dB。 如果不满足动态范围规则，则发送节点的功率被衰减，使得满足动态范围规则，检查是否也满足最小SNR规则，或者从该节点的传输被拉出。 如果没有电源控制解决方案，则应用功率感知调度。 或者，仅使用功率感知调度。
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5.发明授权公开(公告)号：US09814071B2
公开(公告)日：2017-11-07
申请号：US12742686
申请日：2009-09-25
IPC分类号： H04J1/00 , H04W74/08 , H04B1/7105 , H04L27/00 , H04W74/00
CPC分类号： H04W74/0833 , H04B1/7105 , H04L27/0006 , H04W74/002
摘要： A method is disclosed for increasing the communication capacity of a shared ad-hoc wireless channel by using multiuser detection (MUD) to distinguish overlapping information transmitted simultaneously by a plurality of nodes. The transmitting nodes simultaneously provide parameter-estimating signals over separate, unshared, low-rate parameter channels generated using orthogonal frequencies, spread spectrum technology, or time multiplexing. Receiving nodes use these separate, non-overlapping parameter-estimating signals to estimate MUD-required signal parameters such as amplitude, phase, and frequency offset, thereby enabling use of lower complexity MUD receivers, because the parameters are not estimated in the presence of other interference. Node ID, spreading code type, and/or other information can also be transmitted over the parameter channels. Limiting the number of parameter channels can limit the maximum number of transmitting nodes. Amplitudes of parameter channel transmissions can be greater than communication channel transmissions by a known ratio. Parameter channels can be frequency-hopped for jam-resistance.
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