Výsledky vyhledávání - "transmit antenna selection"

Akademický článek

Physical layer security of modify-and-forward cooperative D2D networks based on transmit antenna selection

Autor: LIU Huizhi, LI Guangqiu, ZHANG Yajuan, YE Mingzhu, GAO Hui

Publikováno v: Dianxin kexue, Vol 40, Pp 76-87 (2024)

To further improve the physical layer security (PLS) performance of decode-and-forward (DF) cooperative device-to-device (D2D) network that shared spectrum resources with cellular network, a modify-and-forward (MF) cooperative D2D-cellular PLS model

Externí odkaz: https://doaj.org/article/17e7cd8ccfed41208fea7a01960d6396

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Akademický článek

Performance Analysis of Antenna-relay Selection in CNOMA Systems under Practical Impairments

Autor: Menaa Saber, Khelil Abdellatif

Publikováno v: Journal of Telecommunications and Information Technology, Vol 3, Iss 3 (2024)

Selection strategies prove to be a valuable approach in mitigating complexity associated with antenna selection (AS) and relay selection (RS), optimizing signal transmission through a streamlined number of antennas/relays, and enhancing overall syste

Externí odkaz: https://doaj.org/article/7efcda0ac8b04ec6857c3fd847682a34

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Akademický článek

Convolutional neural network-based transmit antenna selection for UAV-ground station communications with time-varying channels

Autor: Jaehong Kim, Jeongeun Oh, Eui-Rim Jeong, Jingon Joung

Publikováno v: ICT Express, Vol 10, Iss 1, Pp 90-96 (2024)

This study proposes a novel transmit antenna selection (TAS) method for improving communications between the unmanned aerial vehicle (UAV) and ground station (GS). By selecting an appropriate UAV antenna, the signal-to-noise ratio (SNR) at the GS can

Externí odkaz: https://doaj.org/article/a1feb3bcf2e5472585562f2009019aa7

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Akademický článek

Secrecy Outage Performance Enhancement for Three Secondary Users CR-NOMA Systems With TAS Over Nakagami-m Channels

Autor: Jianbo Ji, Shuo Lv

Publikováno v: IEEE Access, Vol 12, Pp 129134-129146 (2024)

Cognitive radio combined with non-orthogonal multiple access (CR-NOMA) networks is a research hotspot in the wireless communication field. All the time, secure communication of wireless networks has become a pressing issue due to the openness of the

Externí odkaz: https://doaj.org/article/552d2561eaf34c1dadb802aa495aec22

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Akademický článek

Physical layer security of MIMO wireless systems with adaptive modulation

Autor: Hui LI, Guangqiu LI, Yancui LUO, Huizhi LIU

Publikováno v: Dianxin kexue, Vol 39, Pp 68-79 (2023)

To solve the problems of low spectral efficiency and poor performance of physical layer security (PLS) in single-input single-output (SISO) wireless systems with adaptive modulation in the presence of an active eavesdropper, multiple-input multiple-o

Externí odkaz: https://doaj.org/article/2e2eba7b272140a78d2fcc2600e61070

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Akademický článek

Physical layer security of full-duplex relay-assisted D2D networks under outdated CSI

Autor: Jingjie SHEN, Guangqiu LI, Yancui LUO, Huizhi LIU

Publikováno v: Dianxin kexue, Vol 39, Pp 89-99 (2023)

The relay aided device to device (D2D) network can improve the spectrum efficiency of D2D users and the physical layer security of cellular user (CU) by sharing spectrum with the cellular network.To further improve their performance, transmit antenna

Externí odkaz: https://doaj.org/article/5bd13e5f8d9f481bade4a31ef78fdb23

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Akademický článek

Empowering the Future of Hybrid MIMO-RF UOWC: Advanced Statistical Framework for Channel Modeling and Optimization for the Post-5G Era and Beyond

Autor: Latif Jan, Ghassan Husnain, Waleed Tariq Sethi, Ihtisham Ul Haq, Yazeed Yasin Ghadi, Hend Khalid Alkahtani

Publikováno v: IEEE Access, Vol 11, Pp 106361-106373 (2023)

This research work examines the reliability of a wireless communication system that uses a hybrid radio frequency (RF) and underwater optical wireless communication (UOWC) in a dual-hop system. The proposed system consists of a single source (S) node

Externí odkaz: https://doaj.org/article/15ee85dc58f24f6ca0b7e0302e7d544d

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