Reconfiguring wireless environments via intelligent surfaces for 6G: Reflection, modulation, and security

J Xu, C Yuen, C Huang, N Ul Hassan… - Science China …, 2023 - Springer
The reconfigurable intelligent surface (RIS) has been recognized as an essential enabling
technology for sixth-generation (6G) mobile communication networks. An RIS comprises a …

Physical-layer secret key generation with colluding untrusted relays

CDT Thai, J Lee, TQS Quek - IEEE Transactions on Wireless …, 2015 - ieeexplore.ieee.org
In this paper, we propose a physical-layer secret key generation scheme for multiantenna
legitimate nodes with the help of multiple untrusted relays, equipped with multiple antennas …

Evolution and future trends of research in cognitive radio: a contemporary survey

E Hossain, D Niyato, DI Kim - Wireless Communications and …, 2015 - Wiley Online Library
The cognitive radio (CR) paradigm for designing next‐generation wireless communications
systems is becoming increasingly popular, and different aspects of it are being implemented …

Exploiting direct links in multiuser multirelay SWIPT cooperative networks with opportunistic scheduling

NT Do, DB da Costa, TQ Duong… - IEEE Transactions on …, 2017 - ieeexplore.ieee.org
In this paper, we analyze the downlink outage performance of opportunistic scheduling in
dual-hop cooperative networks consisting of one source, multiple radio-frequency energy …

Protocol design and performance analysis of multiuser mixed RF and hybrid FSO/RF relaying with buffers

YF Al-Eryani, AM Salhab, SA Zummo… - Journal of Optical …, 2018 - opg.optica.org
In this paper, a multiuser mixed radio frequency (RF) and hybrid free-space optical (FSO)/RF
system is considered, where multiple mobile users transmit their data to an intermediate …

Cognitive relaying with transceiver hardware impairments under interference constraints

PK Sharma, PK Upadhyay - IEEE Communications Letters, 2016 - ieeexplore.ieee.org
In this letter, we analyze the performance of cognitive amplify-and-forward multirelay
networks with active direct link in the presence of relay transceiver hardware impairments …

Secure energy harvesting relay networks with unreliable backhaul connections

C Yin, HT Nguyen, C Kundu, Z Kaleem… - IEEE …, 2018 - ieeexplore.ieee.org
Wireless backhaul is a cost-effective and flexible alternative to wired backhaul, yet it suffers
from unreliability. This paper studies the secrecy performance of a relay network with such …

Outage performance of cognitive cooperative networks with relay selection over double‐Rayleigh fading channels

TT Duy, GC Alexandropoulos, VT Tung… - IET …, 2016 - Wiley Online Library
This study considers a dual‐hop cognitive inter‐vehicular relay‐assisted communication
system where all communication links are non‐line of sight ones and their fading is …

Energy saving optimization for relay-assistance SWIPT network with nonlinear energy harvesting

L Yue, Z Liu, X Zheng, N Liu, Y Yuan… - AEU-International Journal …, 2024 - Elsevier
Abstract Simultaneous Wireless Information and Power Transfer (SWIPT) network is a
promoting mode which provides continuous energy for the energy limited scenarios …

Performance Analysis of Cognitive Relay Networks Over Nakagami- Fading Channels

X Zhang, Y Zhang, Z Yan, J **ng… - IEEE Journal on …, 2014 - ieeexplore.ieee.org
In this paper, we present performance analysis for underlay cognitive decode-and-forward
relay networks with the Nth best relay selection scheme over Nakagami-m fading channels …