Search Results - "Shojaeifard, Arman"
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Survey on reconfigurable intelligent surfaces below 10 GHz
Published in EURASIP journal on wireless communications and networking (10-09-2021)“…Reconfigurable intelligent surface (RIS) is a programmable structure that can be used to control the propagation of electromagnetic waves by changing the…”
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Massive MIMO-Enabled Full-Duplex Cellular Networks
Published in IEEE transactions on communications (01-11-2017)“…We provide a theoretical framework for the study of massive multiple-input multiple-output (MIMO)-enabled full-duplex (FD) cellular networks in which the…”
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Energy Efficiency Optimization for CoMP-SWIPT Heterogeneous Networks
Published in IEEE transactions on communications (01-12-2018)“…In this paper, a fundamental study of energy efficiency (EE) optimization for coordinated multi-point (CoMP) simultaneous wireless information and power…”
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4
Resource Allocation for Energy Efficiency Optimization in Heterogeneous Networks
Published in IEEE journal on selected areas in communications (01-10-2015)“…Heterogeneous network (HetNet) deployment is considered a de facto solution for meeting the ever increasing mobile traffic demand. However, excessive power…”
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RLOps: Development Life-Cycle of Reinforcement Learning Aided Open RAN
Published in IEEE access (2022)“…Radio access network (RAN) technologies continue to evolve, with Open RAN gaining the most recent momentum. In the O-RAN specifications, the RAN intelligent…”
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Optimization for Maximizing Sum Secrecy Rate in SWIPT-Enabled NOMA Systems
Published in IEEE access (01-01-2018)“…In this paper, we study secrecy simultaneous wireless information and power transfer (SWIPT) in downlink non-orthogonal multiple access (NOMA) systems…”
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Drone Mobile Networks: Performance Analysis Under 3D Tractable Mobility Models
Published in IEEE access (2021)“…Reliable wireless communication networks are a significant but challenging mission for post-disaster areas and hotspots in the era of information. However,…”
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Stochastic Geometric Analysis of Energy-Efficient Dense Cellular Networks
Published in IEEE access (2017)“…Dense cellular networks (DenseNets) are fast becoming a reality with the large scale deployment of base stations aimed at meeting the explosive data traffic…”
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9
Coverage Regions Under Multi-Slope Pathloss Propagation
Published in IEEE transactions on vehicular technology (01-10-2020)“…Voronoi diagrams specify the coverage regions of base stations in cellular radio systems. Classical Voronoi diagrams are made up of regions which are convex…”
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10
Performance Limits of Fluid Antenna Systems
Published in IEEE communications letters (01-11-2020)“…Fluid antenna represents a concept where a position-flexible antenna can switch its location freely within a given space. Recently, it has been demonstrated…”
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Fluid Antenna Systems
Published in IEEE transactions on wireless communications (01-03-2021)“…Over the past decades, multiple antenna technologies have appeared in many different forms, most notably as multiple-input multiple-output (MIMO), that have…”
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Performance Analysis of Active RIS-aided Systems in the Face of Imperfect CSI and Phase Shift Noise
Published in IEEE transactions on vehicular technology (01-06-2023)“…The linear minimal mean square error (LMMSE) estimator for active reconfigurable intelligent surface (RIS)-aided wireless systems is formulated. Furthermore,…”
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13
Low-Overhead Channel Estimation for RIS-Aided Multi-Cell Networks in the Presence of Phase Quantization Errors
Published in IEEE transactions on vehicular technology (01-05-2024)“…Deploying reconfigurable intelligent surfaces (RIS) is promising for enhancing the transmission reliability of wireless communications by controlling the…”
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14
Achievable Rate Analysis of the STAR-RIS Aided NOMA Uplink in the Face of Imperfect CSI and Hardware Impairments
Published in IEEE transactions on communications (01-10-2023)“…Reconfigurable intelligent surfaces (RIS) are capable of beneficially ameliorating the propagation environment by appropriately controlling the passive…”
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15
MIMO Evolution Beyond 5G Through Reconfigurable Intelligent Surfaces and Fluid Antenna Systems
Published in Proceedings of the IEEE (01-09-2022)“…With massive deployment, multiple-input-multiple-output (MIMO) systems continue to take mobile communications to new heights, but the ever-increasing demands…”
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Energy-Efficient Reconfigurable Holographic Surfaces Operating in the Presence of Realistic Hardware Impairments
Published in IEEE transactions on communications (01-08-2024)“…Reconfigurable holographic surfaces (RHSs) constitute a promising technique of supporting energy-efficient communications. In this paper, we formulate the…”
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Kalman Filter Based Channel Tracking for RIS-Assisted Multi-User Networks
Published in IEEE transactions on wireless communications (01-04-2024)“…In this paper, we investigate channel estimation in a reconfigurable intelligent surface (RIS) assisted multi-user network while taking the mobility of users…”
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18
Coordinated Reconfigurable Intelligent Surfaces: Non-Diagonal Group-Connected Design
Published in IEEE transactions on vehicular technology (01-07-2024)“…Reconfigurable intelligent surfaces (RIS) constitute a promising technology for future wireless communications in terms of improving the spectral-efficiency…”
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Reconfigurable Intelligent Surfaces Relying on Non-Diagonal Phase Shift Matrices
Published in IEEE transactions on vehicular technology (01-06-2022)“…Reconfigurable intelligent surfaces (RIS) have been actively researched as a potential technique for future wireless communications, which intelligently…”
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Statistical CSI-Based Beamforming for RIS-Aided Multiuser MISO Systems via Deep Reinforcement Learning
Published in IEEE wireless communications letters (01-02-2024)“…This letter presents a novel joint beamforming algorithm for reconfigurable intelligent surfaces (RIS) in multiuser multiple-input single-output (MISO)…”
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