A5001679117- PAPR reduction in OFDM
- Wireless Communication Security Techniques
- Full-Duplex Wireless Communications
- Optical Wireless Communication Technologies
- Advanced MIMO Systems Optimization
- Advanced Wireless Communication Technologies
- Advanced Wireless Communication Techniques
- Radar Systems and Signal Processing
- Cooperative Communication and Network Coding
- Antenna Design and Optimization
- Antenna Design and Analysis
- Energy Harvesting in Wireless Networks
- Wireless Communication Networks Research
- Advanced Photonic Communication Systems
- Advanced SAR Imaging Techniques
- UAV Applications and Optimization
- Wireless Signal Modulation Classification
- Indoor and Outdoor Localization Technologies
- IoT and Edge/Fog Computing
- Telecommunications and Broadcasting Technologies
- Impact of Light on Environment and Health
- Smart Parking Systems Research
- Power Line Communications and Noise
- Advanced Adaptive Filtering Techniques
- Image Enhancement Techniques
Sun Yat-sen University
2019-2025
The Seventh Affiliated Hospital of Sun Yat-sen University
2024
Chongqing Jiaotong University
2021
System Equipment (China)
2018-2020
PLA Information Engineering University
2015-2019
Zhejiang Science and Technology Information Institute
2015-2016
Wuhan Engineering Science & Technology Institute
2015
National University of Defense Technology
2013-2014
In this letter, a simple parasitic structure consisting of microstrip L-section array and U-section is proposed for mutual coupling reduction dual-polarization (DP) patch antenna array. The additional paths are introduced by the in cohorizontal polarization (CHP) covertical (CVP) directions array, respectively, to offset original signals. A <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"><tex-math notation="LaTeX">$1 \times...
In this paper, we investigate the secrecy performance for a multiple-input multiple-output (MIMO) wiretap channel in presence of multiantenna eavesdropper. particular, legitimate transmitter uses transmit antenna selection (TAS) to on single with largest signal-to-noise ratio (SNR) while both receiver and eavesdropper adopt maximal combining (MRC) reception. We derive exact closed-form expressions probabilities achieving positive rate outage case imperfect feedback due delay and/or error....
Next-generation wireless networks are conceived to provide reliable and high-data-rate communication services for diverse scenarios, such as vehicle-to-vehicle, unmanned aerial vehicles, satellite networks. The severe Doppler spreads in the underlying time-varying channels induce destructive inter-carrier interference (ICI) extensively adopted orthogonal frequency division multiplexing (OFDM) waveform, leading performance degradation. This calls a new air interface design that can...
In this letter, we study the robust artificial noise (AN) aided transmit design for a multiple-input single-output (MISO) wiretap channel with single-antenna eavesdropper. We consider two uncertainty models imperfect state information (CSI) on main and eavesdropper's channels at transmitter. For deterministic model, solve worst-case secrecy rate maximization (WC-SRM) problem via semidefinite program (SDP). stochastic propose suboptimal solution to outage probability constrained (OP-SRM)...
This paper investigates a machine learning-based power allocation design for secure transmission in cognitive radio (CR) network. In particular, neural network (NN)-based approach is proposed to maximize the secrecy rate of secondary receiver under constraints total transmit transmitter, and interference leakage primary receiver, within which three different regularization schemes are developed. The key advantage algorithm over conventional approaches capability solve problem with both...
Visible light communication (VLC) is an evolving green technology for indoor wireless networks. VLC utilizes light-emitting diodes (LEDs) both illumination and communication. To achieve economic energy-efficient communications, non-orthogonal multiple access (NOMA) improves the system throughput by enhancing spectral efficiency. In networks, gain ratio power allocation (GRPA) of NOMA allocates greater signal to users poor channels fairness high data rate. However, current GRPA strategies...
Non-orthogonal multiple access (NOMA) is a promising method for enhancing the throughput in visible light communication (VLC) networks. In NOMA, signal power domain control, called gain ratio allocation (GRPA), can significantly improve user sum rate with full-time frequency resource utilization. indoor NOMA-VLC networks, scenario which users are covered by VLC illuminants on ceiling typical. First, this paper proposes novel GRPA strategy single cell. Second, due to difficulty of direct...
Affine frequency division multiplexing (AFDM) is a multi-chirp waveform and promising solution for ultra-reliable communication under doubly dispersive channels. In this paper, we propose two pilot aided channel estimation schemes AFDM, named single (SPA) multiple pilots (MPA) respectively. Pilot, guard data symbols in the discrete affine Fourier transform (DAFT) domain are arranged appropriately at transmitter. While receiver, performed with aid of an threshold mapping table. The bit error...
A conventional approach to tackle the inter-cell interference in multi-cell visible light communication (VLC) networks is based on non-orthogonal multiple access (NOMA) by allowing one user fully decode message of another user. Due ability partially decoding and treating it as noise, rate-splitting (RSMA) has been regarded a more flexible management scheme that generalizes outperforms NOMA. Motivated benefits RSMA its infancy VLC networks, this paper firstly introduces 1-layer into...
A novel approach for ensuring confidential wireless communication is proposed and analysed from a geometrical perspective. In this method, both the legitimate receiver transmitter generate artificial noise (AN) to impair eavesdropper's channel. The authors use concept of insecure region characterise security performance when channel unknown. defined as where eavesdropper may decode secret message. With aim minimising size region, an optimum power allocation strategy between information...
Aperture-level simultaneous transmit and receive (ALSTAR) attempts to utilize adaptive digital beamforming self-interference cancellation methods establish isolation between the apertures of single-phase array. However, existing only discuss ALSTAR ignore radiation efficiency transmitter sensitivity receiver. The array design lacks perfect theoretical support simplified engineering implementation. This paper proposes an random group quantum brainstorming optimization (ARGQBSO) algorithm...
A co-aperture dual-circularly polarized antenna for simultaneous transmit (Tx) and receive (Rx) sensing systems is proposed in this letter. The consists of a radiating patch, dielectric substrate, ground plane. Embedding rectangular slot the center patch implements left-handed circular polarization Tx right-handed Rx. pair U-shaped slots (USS) with 90° phase shift placed into plane decoupling. When USS works, mutual coupling <italic xmlns:mml="http://www.w3.org/1998/Math/MathML"...
With the development of science and technology, modern communication scenarios have put forward higher requirements for passive location technology. However, current systems still use manual scheduling methods cannot meet mission-intensive widely-distributed scenarios, resulting in inefficient task completion. To address this issue, paper proposes a method called multi-objective, multi-constraint improved genetic algorithm-based (MMIGAS), contributing centralized combinatorial optimization...
Delay-Doppler waveform design has been considered as a promising solution to achieve reliable communication under high-mobility channels for the space-air-ground-integrated networks (SAGIN). In this paper, we introduce cyclic delay-Doppler shift (CDDS) technique waveforms extract transmit diversity in doubly selective channels. Two simple CDDS schemes, named time-domain (TD-CDDS) and modulation-domain (MD-CDDS), are proposed setting of multiple-input multiple-output (MIMO). We demonstrate...
Wireless physical layer key generation is a remarkable technology for security. The security of not guaranteed in existing wireless schemes if the eavesdropper less than half wavelength away from legitimate node, which called non-secure zones problem. To address this problem, paper proposes scheme based on unscheduled forwarding signal (WKG-UFS). Specifically, communication nodes send random signals to each other within coherent time. Then, received are forwarded back time after interval....
This paper studies masked beamforming schemes for secure communication in broadcast multiple-input multiple-output (MIMO) systems with a passive multiple-antenna eavesdropper. Assuming no information about the eavesdropper is available at transmitter, we aim to maximize transmit power of artificial noise while meeting mean square error (MSE) constraints legitimate receivers and total constraint transmitter. Based on imperfect channel state (CSI) present worst-case robust algorithm. By...