公开(公告)号：US10849526B1

公开(公告)日：2020-12-01

申请号：US15783643

申请日：2017-10-13

申请人： Ali Fatih Demir ,  Ismail Uysal ,  Huseyin Arslan

发明人： Ali Fatih Demir ,  Ismail Uysal ,  Huseyin Arslan

IPC分类号： A61B5/0484 ,  A61B5/04 ,  A61B5/00

摘要： A system and method of steady-state visual evoked potential (SSVEP) frequency detection using bio-inspired filter banks (BIFB) includes, acquiring electroencephalographic (EEG) signals from a subject in response to a repetitive visual stimulus, estimating the power spectral density (PSD) of the channel of the EEG signals including at least one SSVEP response, extracting one or more SSVEP response features from the estimated PSD of the channel using a bio-inspired filter bank (BIFB) and classifying the extracted SSVEP response features to determine if the detected SSVEP response frequency from the EEG signals acquired from the subject substantially matches the repetition frequency of the repetitive visual stimulus.

公开(公告)号：US09749086B1

公开(公告)日：2017-08-29

申请号：US15198490

申请日：2016-06-30

申请人： Zekeriyya Esat Ankarali ,  Ali Fatih Demir ,  Huseyin Arslan ,  Richard Dennis Gitlin

发明人： Zekeriyya Esat Ankarali ,  Ali Fatih Demir ,  Huseyin Arslan ,  Richard Dennis Gitlin

IPC分类号： H04K3/00 ,  H04L5/00 ,  H04W12/08

CPC分类号： H04K3/84 ,  H04K3/43 ,  H04L5/0048 ,  H04W12/08 ,  H04W12/12

摘要： In various embodiments, the present invention presents a physical layer (PHY) authentication technique for implantable medical devices (IMDs) that does not use existing methods of cryptology. Instead, a friendly jamming mechanism is established and malicious attempts by adversaries are prevented, without sharing any secured information, such as secret keys. In addition to ensuring authentication, the invention also provides advantages in terms of decreasing processing complexity of IMDs and enhances overall communications performance.

公开(公告)号：US10476705B2

公开(公告)日：2019-11-12

申请号：US16417009

申请日：2019-05-20

申请人： Berker Pekoz ,  Selcuk Kose ,  Huseyin Arslan

发明人： Berker Pekoz ,  Selcuk Kose ,  Huseyin Arslan

IPC分类号： H04L25/03 ,  H04L25/02 ,  H04L27/26 ,  H04W72/08 ,  H04B1/10 ,  H04L5/00

摘要： Adaptive windowing of insufficient cyclic prefix (CP) for joint minimization of intersymbol interference (ISI) and adjacent channel interference (ACI) is provided. The proposed subcarrier specific windowing scheme improves the signal-to-interference ratio (SIR) even when the cyclic prefix (CP) is insufficient. Average optimal window lengths depend only on the power density profiles (PDPs), and although instantaneous optimal window lengths depend on users' channel impulse responses (CIRs), fluctuation is little. Therefore, subcarrier specific windowing outperforms fixed windowing, even with outdated window lengths in the case of powerful interferers.

公开(公告)号：US20190280905A1

公开(公告)日：2019-09-12

申请号：US16417009

申请日：2019-05-20

申请人： Berker Pekoz ,  Selcuk Kose ,  Huseyin Arslan

发明人： Berker Pekoz ,  Selcuk Kose ,  Huseyin Arslan

IPC分类号： H04L25/03 ,  H04L25/02 ,  H04L27/26 ,  H04B1/10 ,  H04W72/08

摘要： Adaptive windowing of insufficient cyclic prefix (CP) for joint minimization of intersymbol interference (ISI) and adjacent channel interference (ACI) is provided. The proposed subcarrier specific windowing scheme improves the signal-to-interference ratio (SIR) even when the cyclic prefix (CP) is insufficient. Average optimal window lengths depend only on the power density profiles (PDPs), and although instantaneous optimal window lengths depend on users' channel impulse responses (CIRs), fluctuation is little. Therefore, subcarrier specific windowing outperforms fixed windowing, even with outdated window lengths in the case of powerful interferers.

公开(公告)号：US10411819B1

公开(公告)日：2019-09-10

申请号：US16024051

申请日：2018-06-29

申请人： Ali Faith Demir ,  Huseyin Arslan

发明人： Ali Faith Demir ,  Huseyin Arslan

IPC分类号： H04B17/336 ,  H04J11/00 ,  H04W72/08 ,  H04L5/00 ,  H04W72/04

摘要： A system and method for reducing the OFDM out-of-band emissions (OOBE) by utilizing a transmitter windowing operation that smooths the inherent rectangular pulse shape of the OFDM signals. The technique retains the main design of the OFDM receivers and provides backward compatibility for the existing OFDM-based systems. The guard band and the window parameters that control the guard duration are jointly optimized regarding the use case and the power offset between the users. To fully exploit and further increase the potential of adaptive guards, an interference-based scheduling algorithm is proposed as well.

公开(公告)号：US20190199384A1

公开(公告)日：2019-06-27

申请号：US16223198

申请日：2018-12-18

申请人： Berker Pekoz ,  Selcuk Kose ,  Huseyin Arslan

发明人： Berker Pekoz ,  Selcuk Kose ,  Huseyin Arslan

IPC分类号： H04B1/10 ,  H04L27/26 ,  H04B17/336

摘要： A system and method for adaptively utilizing transmitter windowing, receiver windowing and alignment signals for minimizing interference and maximizing capacity and energy efficiency based upon the received power ratios of links in adjacent bands of a cellular communication network.

公开(公告)号：US20190199383A1

公开(公告)日：2019-06-27

申请号：US16167034

申请日：2018-10-22

申请人： Berker Pekoz ,  Selcuk Kose ,  Huseyin Arslan

发明人： Berker Pekoz ,  Selcuk Kose ,  Huseyin Arslan

IPC分类号： H04B1/10 ,  H04L27/26 ,  H04B17/336

CPC分类号： H04B1/1027 ,  H04B17/336 ,  H04B2001/1045 ,  H04L5/0007 ,  H04L27/2607 ,  H04L27/2614 ,  H04L27/2628

摘要： A system and method for adaptively utilizing transmitter windowing, receiver windowing and alignment signals for minimizing interference and maximizing capacity and energy efficiency based upon the received power ratios of links in adjacent bands of a cellular communication network.

公开(公告)号：US09363127B1

公开(公告)日：2016-06-07

申请号：US14530162

申请日：2014-10-31

申请人： Ertugrul Guvenkaya ,  Huseyin Arslan

发明人： Ertugrul Guvenkaya ,  Huseyin Arslan

IPC分类号： H04K1/10 ,  H04L27/28 ,  H04L27/26

CPC分类号： H04L27/2647 ,  H04L25/03821 ,  H04L25/03834 ,  H04L27/2626 ,  H04L27/2637 ,  H04L27/2653

摘要： An optimum time domain windowing scheme for orthogonal frequency-division multiplexing (OFDM)-based waveforms in the sense of spectral concentration is proposed. Instead of evenly suppressing the sidelobes along the frequency, the sidelobe power is concentrated within a guard band while maximally suppressing the power for a desired frequency range. This is achieved by employing optimum finite duration pulses, prolate spheroidal wave functions (PSWF), to shape the OFDM transmit pulse. Also with per-subcarrier windowing scheme, the effect of inner subcarriers on sidelobes is diminished by utilizing the concentration bandwidth versus out-of-band power trade-off in PSWF and the multicarrier nature of the OFDM.

摘要翻译： 提出了在频谱浓度意义上的基于正交频分复用（OFDM）的波形的最佳时域加窗方案。 代替均匀地抑制沿着频率的旁瓣，旁瓣功率集中在保护带内，同时最大限度地抑制期望频率范围的功率。 这是通过采用最佳有限持续时间脉冲，扁平球形波函数（PSWF）来实现的，以形成OFDM发射脉冲。 同样采用每子载波加窗方案，通过利用集中带宽与PSWF中的带外功率权衡和OFDM的多载波特性，内部副载波对旁瓣的影响减小。

公开(公告)号：US07956807B1

公开(公告)日：2011-06-07

申请号：US12018509

申请日：2008-01-23

申请人： Hasari Celebi ,  Huseyin Arslan

发明人： Hasari Celebi ,  Huseyin Arslan

IPC分类号： G01S3/02

CPC分类号： G01S5/14 ,  G01S5/0205 ,  G01S11/08

摘要： This invention provides arbitrary positioning accuracy for cognitive radio communications in both indoor and outdoor environments adaptively. It enables the user or wireless device itself to adjust positioning accuracy adaptively. Hence, this invention can be used for developing numerous personal, commercial, governmental and military cognitive location-based services and applications. Furthermore, the invented H-DSM technique can be used by cognitive wireless networks and devices to improve spectrum efficiency.

摘要翻译： 本发明适用于室内和室外认知无线电通信的任意定位精度。 它使用户或无线设备本身能够自适应地调整定位精度。 因此，本发明可用于开发许多个人，商业，政府和军事认知基于位置的服务和应用。 此外，本发明的H-DSM技术可以被认知无线网络和设备用于提高频谱效率。

公开(公告)号：US20100226356A1

公开(公告)日：2010-09-09

申请号：US12652337

申请日：2010-01-05

申请人： Mustafa E. Sahin ,  Ismail Guvenc ,  Huseyin Arslan

发明人： Mustafa E. Sahin ,  Ismail Guvenc ,  Huseyin Arslan

IPC分类号： H04L27/00 ,  H04B7/208 ,  H04B7/216 ,  H04B1/10 ,  H04B1/69

CPC分类号： H04L27/2647 ,  H04J11/004 ,  H04J11/0066 ,  H04L5/0007 ,  H04L25/0204 ,  H04L25/0212 ,  H04L25/0224 ,  H04L25/03821

摘要： In a co-channel deployment of narrowband and multi-carrier technologies (e.g., a femtocell and a macrocell), a method provides cancelling of interference which treats the co-channel signals as desired signals and enhances each of them iteratively. At each iteration, each signal is demodulated and regenerated based on symbol decisions already made and a predetermined channel impulse response. To estimate the other (interfering) co-channel signal, the regenerated signal is subtracted from the aggregate signal. Simulations have shown that a method of the present invention can provide fundamental improvement in the performances of both interfering systems in as few as two iterations. The fundamental performance gain that can be obtained outweigh the required computational burden.

摘要翻译： 在窄带和多载波技术（例如，毫微微小区和宏小区）的协同信道部署中，一种方法提供了将对等信道信号作为所需信号的干扰的取消，并且迭代地增强了每个信道。 在每次迭代中，基于已经做出的符号决定和预定的信道脉冲响应来解调和再生每个信号。 为了估计另一个（干扰）同信道信号，从聚合信号中减去再生信号。 模拟已经表明，本发明的方法可以在两次迭代中提供两个干扰系统的性能的基本改进。 可以获得的基本性能增益超过所需的计算负担。