Results 11 to 20 of about 3,018,601 (297)

Coverage Analysis of Hybrid RF/THz Networks With Best Relay Selection [PDF]

open access: yesIEEE Communications Letters, 2023
Utilizing terahertz (THz) transmission to enhance coverage has proven various benefits compared to traditional radio frequency (RF) counterparts. This letter proposes a dual-hop decode-and-forward (DF) routing protocol in a hybrid RF and THz relay ...
Zhengying Lou   +2 more
semanticscholar   +1 more source

Joint Optimization of Relay Selection and Transmission Scheduling for UAV-Aided mmWave Vehicular Networks [PDF]

open access: yesIEEE Transactions on Vehicular Technology, 2023
To deal with the explosive growth of mobile traffic, millimeter-wave (mmWave) communications with abundant bandwidth resources have been applied to vehicular networks.
Jing Li   +6 more
semanticscholar   +1 more source

Relay Selection and Power Allocation for Energy Efficiency Maximization in Hybrid Satellite-UAV Networks With CoMP-NOMA Transmission

open access: yesIEEE Transactions on Vehicular Technology, 2022
Non-orthogonal multiple access (NOMA) and coordinated multi-point (CoMP) are two fundamental techniques considered for the fifth generation (5 G) of wireless communications.
S. Mirbolouk   +3 more
semanticscholar   +1 more source

A Simple Cooperative Diversity Method Based on Deep-Learning-Aided Relay Selection [PDF]

open access: yesIEEE Transactions on Vehicular Technology, 2021
Opportunistic relay selection (ORS) has been recognized as a simple but efficient method for mobile nodes to achieve cooperative diversity in slow fading channels.
Wei Jiang, H. Schotten
semanticscholar   +1 more source

Multi-Agent Reinforcement Learning-Based Buffer-Aided Relay Selection in IRS-Assisted Secure Cooperative Networks

open access: yesIEEE Transactions on Information Forensics and Security, 2021
This paper proposes a multi-agent deep reinforcement learning-based buffer-aided relay selection scheme for an intelligent reflecting surface (IRS)-assisted secure cooperative network in the presence of an eavesdropper.
Chong Huang, Gaojie Chen, Kai‐Kit Wong
semanticscholar   +1 more source

Deep Reinforcement Learning-Based Relay Selection in Intelligent Reflecting Surface Assisted Cooperative Networks

open access: yesIEEE Wireless Communications Letters, 2021
This letter proposes a deep reinforcement learning (DRL) based relay selection scheme for cooperative networks with the intelligent reflecting surface (IRS).
Chong Huang   +4 more
semanticscholar   +1 more source

Reinforcement Learning Based Relay Selection for Underwater Acoustic Cooperative Networks

open access: yesRemote Sensing, 2022
In the complex and dynamically varying underwater acoustic (UWA) channel, cooperative communication can improve throughput for UWA sensor networks.
Yuzhi Zhang   +6 more
semanticscholar   +1 more source

Secure 5G Wireless Communications: A Joint Relay Selection and Wireless Power Transfer Approach

open access: yesIEEE Access, 2016
In this paper, we investigate the secrecy performance of an energy harvesting relay system, where a legitimate source communicates with a legitimate destination via the assistance of multiple trusted relays.
Nam-Phong Nguyen   +4 more
doaj   +1 more source

Data-Driven-Based Relay Selection and Cooperative Beamforming for Non-Regenerative Multi-Antenna Relay Networks

open access: yesIEEE Access, 2021
In this paper, an attempt to exploit the benefits of data-driven methods in solving joint relay selection and beamforming for non-regenerative relay networks has been made.
Jie Luo   +4 more
doaj   +1 more source

Hierarchical Reinforcement Learning for Relay Selection and Power Optimization in Two-Hop Cooperative Relay Network

open access: yesIEEE Transactions on Communications, 2021
In this paper, we study the outage probability minimizing problem in a two-hop cooperative relay network. To reduce outage probability, existing studies propose many schemes for relay selection and power allocation, which are usually based on the ...
Yuanzhe Geng   +3 more
semanticscholar   +1 more source

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