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1. 发明授权

US09531497B2 Real-time and protocol-aware reactive jamming in wireless networks 有权
标题翻译：无线网络中的实时和协议感知反应干扰
公开(公告)号：US09531497B2
公开(公告)日：2016-12-27
申请号：US14290545
申请日：2014-05-29
申请人： Drexel University
发明人： Boris Shishkin , Danh H. Nguyen , Cem Sahin , Kapil R. Dandekar , Nagarajan Kandasamy , David J. Dorsey
IPC分类号： H04B17/00 , H04K3/00
CPC分类号： H04K3/80 , H04K3/41 , H04K3/45 , H04K3/46 , H04K3/94 , H04K2203/18
摘要： A real-time capable, protocol-aware, reactive jammer using GNU Radio and the USRP N210 software-defined radio (SDR) platform detects in-flight packets of known wireless standards and reacts to jam them—within 80 ns of detecting the signal. A reactive jamming device is achieved using low-cost, readily available hardware. The real-time reactive jamming device includes a real-time signal detector that detects an event in received packets in the wireless network, a reactive jamming device that sends a triggering signal when the event is detected, and a jamming generator responsive to the triggering signal to generate a jamming signal that has a user-defined delay so as to enable jamming of specific locations in received packets in the wireless network. The effects of three types of jamming on WiFi (802.11g) and mobile WiMAX (802.16e) networks are demonstrated and jamming performances are quantified by measuring the network throughput using the iperf software tool.
摘要翻译：使用GNU Radio和USRP N210软件定义无线电（SDR）平台的实时功能，协议感知，反应干扰器检测已知无线标准的飞行包中的数据，并在发现信号的80 ns内对其进行响应。使用低成本，易于获得的硬件实现无功干扰装置。实时无功干扰装置包括检测无线网络中接收到的分组中的事件的实时信号检测器，当检测到事件时发送触发信号的无功干扰装置，以及响应于触发信号的干扰发生器以产生具有用户定义的延迟的干扰信号，以便能够阻止无线网络中接收的分组中的特定位置。演示了三种干扰在WiFi（802.11g）和移动WiMAX（802.16e）网络上的影响，并通过使用iperf软件工具测量网络吞吐量来量化干扰性能。

2. 发明申请

US20200244453A1 Symmetric Encryption Key Generation Using Wireless Physical Layer Information Without Sharing Any Information Pertinent To The Key 审中-公开
公开(公告)号：US20200244453A1
公开(公告)日：2020-07-30
申请号：US16851182
申请日：2020-04-17
申请人： Drexel University
发明人： Cem Sahin , Kapil R. Dandekar
IPC分类号： H04L9/08 , H04L9/14
摘要： Symmetric keys are generated by an algorithm that uses the randomness from the wireless PHY layer to extract the keys. When used with reconfigurable antennas, the algorithm yields longer keys. By using the randomness from the wireless PITY layer, the algorithm solves the issue of secure information leakage to the wireless channel during key establishment phase. The algorithm also omits transmitting anything secure during this phase and prevents any intruder from obtaining information related to the key. This approach can automatically secure the communications over open wireless networks (those without authentication or encryption) or closed wireless networks using other methods of authentication.

3. 发明申请

US20190268087A1 Energy-Efficient Reactive Jamming of Frequency-Hopping Spread Spectrum (FHSS) Signals using Software-Defined Radios 审中-公开
公开(公告)号：US20190268087A1
公开(公告)日：2019-08-29
申请号：US16284574
申请日：2019-02-25
申请人： Drexel University
发明人： Danh H. Nguyen , Marko Jacovic , Cem Sahin , Kapil R. Dandekar
IPC分类号： H04K3/00
摘要： A reactive jamming software defined radio (SDR) apparatus to target Frequency Hopping Spread-Spectrum (FHSS) signals includes a peripheral module for SDR processing; a reactive jamming hardware IP core that implements time-sensitive operations on a field programmable gate array (FGPA); and a host computer that implements non-time-critical operations, such as jammer configuration, logging, and strategy composition.

4. 发明授权

US11540120B2 Physical layer key based interleaving for secure wireless communication 有权
公开(公告)号：US11540120B2
公开(公告)日：2022-12-27
申请号：US16432509
申请日：2019-06-05
申请人： Drexel University
发明人： Kapil R. Dandekar , James J. Chacko , Kyle Joseph Juretus , Marko Jacovic , Cem Sahin , Nagarajan Kandasamy , Ioannis Savidis
IPC分类号： H04W12/033 , G06F7/58 , H03M13/27 , H04W12/041 , H04L5/00
摘要： A key-based interleaver for enhancement the security of wireless communication includes a physical layer communication channel key to provide security even when the software encryption key is compromised. A method of creating a secure communication link using a physical layer interleaving system includes implementing a key policy implementation that utilizes temporal dependency and interleaving bits using a flexible inter and intra-block data interleaver.

5. 发明授权

US10515483B2 Beam visualization and using augmented reality for control and interaction 有权
公开(公告)号：US10515483B2
公开(公告)日：2019-12-24
申请号：US15780391
申请日：2016-12-01
申请人： Drexel University
发明人： Kapil R. Dandekar , Cem Sahin , Logan J. Henderson , Danh H. Nguyen , James J. Chacko , Xaime Rivas Rey
IPC分类号： G06T19/00 , G01R29/10 , H04B17/336 , H04B17/345 , G06F3/0484 , H04L12/24
摘要： Presenting a visualization of antenna radiation patterns may include sending a request to a server for up-to-date information regarding an antenna mode; receiving the request at the server and reading a register value for the antenna mode; responding, by the server, with updated antenna mode information; and overlaying antenna radiation patterns on an image based on the mode information.

6. 发明公开

US20240214803A1 Physical Layer Key based Interleaving for Secure Wireless Communication 审中-公开
公开(公告)号：US20240214803A1
公开(公告)日：2024-06-27
申请号：US18146145
申请日：2022-12-23
申请人： Drexel University
发明人： Kapil R. Dandekar , James J. Chacko , Kyle Joseph Juretus , Marko Jacovic , Cem Sahin , Nagarajan Kandasamy , Ioannis Savidis
IPC分类号： H04W12/0431 , H04W12/041
CPC分类号： H04W12/0431 , H04W12/041
摘要： A key-based interleaver for enhancement the security of wireless communication includes a physical layer communication channel key to provide security even when the software encryption key is compromised. A method of creating a secure communication link using a physical layer interleaving system includes implementing a key policy implementation that utilizes temporal dependency and interleaving bits using a flexible inter and intra-block data interleaver.

7. 发明授权

US10985861B2 Energy-efficient reactive jamming of frequency-hopping spread spectrum (FHSS) signals using software-defined radios 有权
公开(公告)号：US10985861B2
公开(公告)日：2021-04-20
申请号：US16284574
申请日：2019-02-25
申请人： Drexel University
发明人： Danh H. Nguyen , Marko Jacovic , Cem Sahin , Kapil R. Dandekar
IPC分类号： H04K3/00
摘要： A reactive jamming software defined radio (SDR) apparatus to target Frequency Hopping Spread-Spectrum (FHSS) signals includes a peripheral module for SDR processing; a reactive jamming hardware IP core that implements time-sensitive operations on a field programmable gate array (FGPA); and a host computer that implements non-time-critical operations, such as jammer configuration, logging, and strategy composition.

8. 发明申请

US20220345306A1 Symmetric Encryption Key Generation Using Wireless Physical Layer Information Without Sharing Any Information Pertinent To The Key 有权
公开(公告)号：US20220345306A1
公开(公告)日：2022-10-27
申请号：US17720610
申请日：2022-04-14
申请人： Drexel University
发明人： Cem Sahin , Kapil R. Dandekar
IPC分类号： H04L9/08 , H04L9/14
摘要： Symmetric keys are generated by an algorithm that uses the randomness from the wireless PHY layer to extract the keys. When used with reconfigurable antennas, the algorithm yields longer keys. By using the randomness from the wireless PHY layer, the algorithm solves the issue of secure information leakage to the wireless channel during key establishment phase. The algorithm also omits transmitting anything secure during this phase and prevents any intruder from obtaining information related to the key. This approach can automatically secure the communications over open wireless networks (those without authentication or encryption) or closed wireless networks using other methods of authentication.

9. 发明授权

US11177902B2 Physical gate based preamble obfuscation for securing wireless communication 有权
公开(公告)号：US11177902B2
公开(公告)日：2021-11-16
申请号：US16478148
申请日：2018-01-15
申请人： Drexel University
发明人： James J. Chacko , Kapil R. Dandekar , Marko Jacovic , Kyle Joseph Juretus , Nagarajan Kandasamy , Cem Sahin , Ioannis Savidis
IPC分类号： H04L9/08 , H04K1/00 , H04W12/03 , H04W12/037 , H04W12/041
摘要： A physical layer based technique secures wireless communication between a transmitter and receiver. The technique involves obfuscating the preamble data of the baseband signal through unique keys that are generated at the transmitter and the receiver based on channel characteristics known only to them.

10. 发明申请

US20180350149A1 Beam Visualization and Using Augmented Reality for Control and Interaction 审中-公开
公开(公告)号：US20180350149A1
公开(公告)日：2018-12-06
申请号：US15780391
申请日：2016-12-01
申请人： Drexel University
发明人： Kapil R. Dandekar , Cem Sahin , Logan J. Henderson , Danh H. Nguyen , James J. Chacko , Xaime Rivas Rey
IPC分类号： G06T19/00 , G06F3/0484 , G01R29/10 , H04B17/336 , H04B17/345
CPC分类号： G06T19/006 , G01R29/10 , G06F3/04847 , H04B17/336 , H04B17/345 , H04L41/22
摘要： Presenting a visualization of antenna radiation patterns may include sending a request to a server for up-to-date information regarding an antenna mode; receiving the request at the server and reading a register value for the antenna mode; responding, by the server, with updated antenna mode information; and overlaying antenna radiation patterns on an image based on the mode information.

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