Beamforming Optimization for IRS-assisted mmWave V2I Communication Systems via Reinforcement Learning
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Access"
DOI: 10.1109/access.2022.3181152
Abstract: Intelligent reflecting surface (IRS), which can provide a propagation path where non-line-of-sight (NLOS) link exists, is a promising technology to enable beyond fifth-generation (B5G) mobile communication systems. In this paper, we jointly optimize the base… read more here.
Keywords: network; reinforcement learning; communication; v2i communication ... See more keywords
Resource Allocation for IRS-Assisted Wireless-Powered FDMA IoT Networks
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Internet of Things Journal"
DOI: 10.1109/jiot.2021.3117791
Abstract: This article investigates intelligent reflecting surface (IRS)-assisted wireless-powered Internet of Things (IoT) networks. Specifically, multiple IoT devices first collect energy radiated from a power station (PS), then each device uses its harvested energy to support… read more here.
Keywords: wireless; assisted wireless; iot networks; irs assisted ... See more keywords
Outage Constrained Robust Beamforming Optimization for Multiuser IRS-Assisted Anti-Jamming Communications With Incomplete Information
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Internet of Things Journal"
DOI: 10.1109/jiot.2022.3140752
Abstract: Malicious jamming attacks have been regarded as a serious threat to Internet of Things (IoT) networks, which can significantly degrade the Quality of Service (QoS) of users. This article utilizes an intelligent reflecting surface (IRS)… read more here.
Keywords: multiuser irs; beamforming optimization; robust beamforming; irs assisted ... See more keywords
A Joint Optimization Framework for IRS-Assisted Energy Self-Sustainable IoT Networks
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Internet of Things Journal"
DOI: 10.1109/jiot.2022.3142850
Abstract: Energy self-sustainability is critically important for future Internet of Things (IoT) networks to support an ever-growing massive number of wireless devices with low maintenance cost and high spectrum/energy efficiency. Power-splitting (PS)-based simultaneous wireless information and… read more here.
Keywords: problem; energy; iot networks; irs assisted ... See more keywords
Optimization for IRS-Assisted MIMO-OFDM SWIPT System With Nonlinear EH Model
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Internet of Things Journal"
DOI: 10.1109/jiot.2022.3195927
Abstract: Simultaneous wireless information and power transfer (SWIPT) has emerged as an appealing solution to prolonging the lifetime of low-power Internet of Things (IoT) networks. Meanwhile, an intelligent reflecting surface (IRS) can reconstruct a favorable wireless… read more here.
Keywords: optimization; power; ofdm swipt; irs assisted ... See more keywords
Energy Efficiency Maximization for IRS-Assisted Uplink Systems: Joint Resource Allocation and Beamforming Design
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Communications Letters"
DOI: 10.1109/lcomm.2021.3115812
Abstract: This letter investigates the design of resource allocation to maximize the energy efficiency (EE) in a multiuser multiple-input multiple-output (MIMO) intelligent reflecting surface (IRS)-assisted uplink network. The design is formulated as a mixed-integer non-convex optimization… read more here.
Keywords: resource allocation; energy efficiency; allocation; irs assisted ... See more keywords
Channel Gain Lower Bound for IRS-Assisted UAV-Aided Communications
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Communications Letters"
DOI: 10.1109/lcomm.2021.3119239
Abstract: The Multiple-Input-Multiple-Output (MIMO) capabilities of an Intelligent Reflective Surface (IRS) combined with the inherent versatility of an Unmanned Aerial Vehicle (UAV) can significantly enhance the communication quality between a Ground User (GU) and a Base… read more here.
Keywords: channel gain; gain lower; lower bound; uav aided ... See more keywords
Passive Beamforming for IRS-Assisted MU-MIMO Systems With One-Bit ADCs: An SER Minimization Design Approach
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Communications Letters"
DOI: 10.1109/lcomm.2022.3149639
Abstract: In this letter, we investigate the passive beamforming for intelligent reflecting surface (IRS)-assisted multi-user multiple-input multiple-output systems with one-bit analog-to-digital converters aiming at minimizing the symbol error rate (SER). By leveraging the concept of signal… read more here.
Keywords: passive beamforming; one bit; ser; irs assisted ... See more keywords
Optimal User Cooperation in IRS Assisted WPCN for Practical Non-Linear Phase-Shift Model
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Communications Letters"
DOI: 10.1109/lcomm.2022.3199877
Abstract: This letter is a novel attempt to consider intelligent reflecting surfaces (IRS) assisted user cooperation adopting the practical non-linear phase-shift model in a wireless-powered communication network (WPCN). Specifically, we aim to maximize both max-min fairness… read more here.
Keywords: phase shift; user cooperation; model; phase ... See more keywords
Low-Complexity Two-Step Optimization in Active-IRS-Assisted Uplink NOMA Communication
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Communications Letters"
DOI: 10.1109/lcomm.2022.3204749
Abstract: Recently, the active intelligent reflecting surface (IRS) has been proposed to adjust the phase and amplify the magnitude of the incident signal simultaneously. It has a more reasonable hardware overhead compared with the conventional relay.… read more here.
Keywords: low complexity; active irs; assisted uplink; irs assisted ... See more keywords
IRS-Assisted Physical Layer Security in MIMO-NOMA Networks
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Communications Letters"
DOI: 10.1109/lcomm.2023.3235722
Abstract: In this letter, we propose deploying the intelligent reflecting surface (IRS) to enhance the physical layer security in non-orthogonal multiple access (NOMA). The secrecy sum-rate of IRS-assisted multiple-input multiple-output (MIMO) NOMA is maximized in the… read more here.
Keywords: layer security; mimo noma; physical layer; irs assisted ... See more keywords