A Code-Domain, In-Band, Full-Duplex Wireless Communication Link With Greater Than 100-dB Rejection

2021 ◽  
Vol 69 (1) ◽  
pp. 955-968
Author(s):  
Ahmed Hamza ◽  
Aravind Nagulu ◽  
Alfred Festus Davidson ◽  
Jonathan Tao ◽  
Cameron Hill ◽  
...  
Keyword(s):  
Wireless Communication ◽  
Full Duplex ◽  
Communication Link ◽  
Code Domain

scholarly journals Robust proactive eavesdropping in UAV-enabled wireless communication networking

2019 ◽  
Vol 2019 (1) ◽  
Author(s):  
Wei Wu ◽  
Yujing Wang ◽  
Jianlin Mo ◽  
Jian Liu
Keyword(s):  
Wireless Communication ◽  
Low Complexity ◽  
Full Duplex ◽  
Communication Link ◽  
Estimation Errors ◽  
Channel Estimation Errors ◽  
Aerial Vehicle ◽  
Temperature Constraint ◽  
Primary Receiver ◽  
Proactive Eavesdropping

AbstractIn this paper, we considered a robust beamforming design problem for a proactive eavesdropping via jamming, in which a full-duplex legitimate monitor tries to eavesdrop on a suspicious communication link between the secondary pairs in an unmanned aerial vehicle (UAV)-enabled cognitive radio network. Due to the channel estimation errors, we assume that the channel state information is not perfectly known. To ensure the successful eavesdropping, jamming signals are designed to disrupt the suspicious receivers and the primary receiver at the same time, which should have the good tradeoff between those two effects. We aimed to maximize the achievable eavesdropping rate under the transmitting power constraint at the legitimate monitor and the interference temperature constraint at the primary receiver, which was formulated as a non-convex problem with infinite constraints. We firstly transform the original problem into a simplified one with finite constraints. Then, an analytical solution in significant low-complexity is proposed by decomposing the simplified problem. Numerical results are finally presented to evaluate the performance of our proposed schemes in UAV-enabled wireless communication networking.

Analysis of Inter-Satellite Optical Wireless Communication System

2017 ◽  
Vol 7 (10) ◽  
pp. 10
Author(s):  
Rajbir Singh
Keyword(s):  
Wireless Communication ◽  
Optical Networks ◽  
Data Transmission ◽  
High Speed ◽  
Open Space ◽  
Communication Link ◽  
Optical Wireless Communication ◽  
Optical Wireless ◽  
High Speed Data ◽  
Speed Data Transmission

Optical networks are bandwidth efficient networks are used for long haul communication providing seamless data transfer. For high speed data transmission in open space between different satellites, Inter-satellite Optical wireless communication (IsOWC) is widely used .In this paper we have evaluated the performance of IsOWC communication link for high speed data transmission .The performance of the system is evaluated on the basis of qualitative parameters such as Q-factor and BER using optisystem simulator.

Impact of Various Parameters on the Performance of Inter-aircraft Optical Wireless Communication Link

2017 ◽  
Vol 39 (1) ◽  
Author(s):  
Mehtab Singh
Keyword(s):  
Wireless Communication ◽  
Transmission Rate ◽  
Power Level ◽  
Communication Link ◽  
Optical Wireless Communication ◽  
Optical Wireless ◽  
Antenna Aperture ◽  
Aperture Diameter ◽  
Pointing Error ◽  
The Impact

AbstractOptical wireless communication (OWC) systems also known as Free space optics (FSO) are capable of providing high channel bandwidth, high data transmission rates, low power consumption, and high security. OWC links are being considered in different applications such as inter-satellite links, terrestrial links, and inter-aircraft communication links. This paper investigates the impact of different system parameters such as transmission power level, operating wavelength, transmitter pointing error angle, bit transmission rate, atmospheric attenuation, antenna aperture diameter, geometric losses, the responsivity of the photodetector, and link range on the performance of inter-aircraft optical wireless communication link.

scholarly journals Self-interference suppression for the full-duplex wireless communication with large-scale antenna

2016 ◽  
Vol 27 (6) ◽  
pp. 764-774 ◽  
Author(s):  
Pengbo Xing ◽  
Ju Liu ◽  
Chao Zhai ◽  
Xinhua Wang ◽  
Lina Zheng
Keyword(s):  
Wireless Communication ◽  
Large Scale ◽  
Interference Suppression ◽  
Full Duplex

scholarly journals A Wireless-Communication-Based Active Safety System for Articulated Heavy Vehicles

2015 ◽  
Author(s):  
Tina Mirfakhraie ◽  
Ramiro Liscano ◽  
Shenjin Zhu ◽  
Yuping He
Keyword(s):  
Wireless Communication ◽  
Wireless Network ◽  
Packet Loss ◽  
Data Exchange ◽  
Noise Burst ◽  
Sensor Data ◽  
Communication Link ◽  
Channel Fading ◽  
Heavy Vehicles ◽  
Lane Change Test

This paper presents an active trailer steering (ATS) system using a wireless communication link to facilitate exchanging information among vehicle units of articulated heavy vehicles (AHVs). A challenge for developing and implementing the wireless-communication-based ATS system is to address the problems of delay and packet-loss. Embedding wireless communication transceivers on an AHV may introduce delays for data exchange, and the transmitted data may be lost. Many reasons may lead to the delay and packet-loss, e.g., channel fading, noise burst, interference, etc. The proposed ATS system may prevent unstable motion modes of AHVs if the sensor data reach the controllers/actuators in real-time with an acceptable level of delay and packet-loss. In order to ensure the performance of the ATS control, a Kalman-filter-based estimator is introduced. The estimator uses the available dynamic data to estimate the current states of the AHV in case some sensor information is not available due to a delay or an outage in the wireless communication link. To investigate the effect of the time delay due to the wireless communication on the performance of the ATS control, co-simulations are conducted. The wireless network is modeled using TrueTime toolbox, the ATS controller is designed in SimuLink package, and the AHV model is constructed in TruckSim software. Integrating the wireless network modeled in TrueTime, the ATS controller designed in SimuLink, and the AHV model constructed in TruckSim leads to the co-simulation platform. Under the emulated double lane-change test maneuver, the effects of the wireless communication with two schemes on the direction performance of the AHV are examined.

scholarly journals Dual-Branch Pre-Distorted Enhanced ADO-OFDM for Full-Duplex Underwater Optical Wireless Communication System

Photonics ◽  
2021 ◽  
Vol 8 (9) ◽  
pp. 368
Author(s):  
Zixian Wei ◽  
Yibin Li ◽  
Zhaoming Wang ◽  
Junbin Fang ◽  
Hongyan Fu
Keyword(s):  
Wireless Communication ◽  
Spectral Efficiency ◽  
Orthogonal Frequency Division Multiplexing ◽  
Channel Model ◽  
Full Duplex ◽  
Optical Channel ◽  
Optical Wireless Communication ◽  
Optical Wireless ◽  
Hardware Complexity ◽  
Double Gamma Function

In this paper, dual-branch pre-distorted enhanced asymmetrically clipped direct current (DC) biased optical orthogonal frequency division multiplexing (PEADO-OFDM) for underwater optical wireless communication (UOWC) is firstly proposed and simulated. The performances of PEADO-OFDM on the underwater optical channel model (UOCM) are analyzed and further compared with the typical ADO-OFDM. Using the Monte Carlo method for the modeling of UOCM, we adopt a double-gamma function to represent three different water qualities including clear, coastal and harbor waters. The full-duplex architecture enables the removal of Hermitian symmetry (HS) from conventional optical OFDM and can increase the spectral efficiency at the cost of hardware complexity. A new PEADO-OFDM transmitter is also proposed to reduce the complexity of the transmitter. The simulation results exhibit that our proposed dual-branch PEADO-OFDM scheme outperforms the typical ADO-OFDM scheme in spectral efficiency, bit error rate (BER) and stability over the underwater channels of three different water qualities.

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