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08/16/2023
Perpetual Reconfigurable Intelligent Surfaces Through In-Band Energy Harvesting: Architectures, Protocols, and Challenges
Reconfigurable intelligent surfaces (RISs) are considered to be a key en...
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08/14/2023
Full Duplex Joint Communications and Sensing for 6G: Opportunities and Challenges
The paradigm of joint communications and sensing (JCAS) envisions a revo...
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08/07/2023
Joint Device Identification, Channel Estimation, and Signal Detection for LEO Satellite-Enabled Random Access
This paper investigates joint device identification, channel estimation,...
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08/02/2023
Performance of Joint Symbol Level Precoding and RIS Phase Shift Design in the Finite Block Length Regime with Constellation Rotation
In this paper, we tackle the problem of joint symbol level precoding (SL...
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05/15/2023
Task-Oriented Communication Design at Scale
With countless promising applications in various domains such as IoT and...
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04/10/2023
Quasi-Synchronous Random Access for Massive MIMO-Based LEO Satellite Constellations
Low earth orbit (LEO) satellite constellation-enabled communication netw...
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01/04/2023
Task-Effective Compression of Observations for the Centralized Control of a Multi-agent System Over Bit-Budgeted Channels
We consider a task-effective quantization problem that arises when multi...
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12/21/2022
Space-Terrestrial Cooperation Over Spatially Correlated Channels Relying on Imperfect Channel Estimates: Uplink Performance Analysis and Optimization
A whole suite of innovative technologies and architectures have emerged ...
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10/11/2022
Combining Relaying and Reflective Surfaces: Power Consumption and Energy Efficiency Analysis
Hybrid relaying networks (HRNs) combining both a relay and an intelligen...
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09/25/2022
Grant-Free NOMA-OTFS Paradigm: Enabling Efficient Ubiquitous Access for LEO Satellite Internet-of-Things
With the blooming of Internet-of-Things (IoT), we are witnessing an expl...
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09/03/2022
Power Allocation for Space-Terrestrial Cooperation Systems with Statistical CSI
This paper studies an integrated network design that boosts system capac...
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08/28/2022
Learning to Optimize: Balancing Two Conflict Metrics in MB-HTS Networks
For multi-beam high throughput (MB-HTS) geostationary (GEO) satellite ne...
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08/07/2022
Rate Splitting Multiple Access for Next Generation Cognitive Radio Enabled LEO Satellite Networks
This paper proposes a cognitive radio enabled LEO SatCom using RSMA radi...
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07/29/2022
Joint Beam Placement and Load Balancing Optimization for Non-Geostationary Satellite Systems
Non-geostationary (Non-GSO) satellite constellations have emerged as a p...
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06/23/2022
Cooperative Hybrid Networks with Active Relays and RISs for B5G: Applications, Challenges, and Research Directions
Among the recent advances and innovations in wireless technologies, reco...
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06/09/2022
Massive MIMO Hybrid Precoding for LEO Satellite Communications With Twin-Resolution Phase Shifters and Nonlinear Power Amplifiers
The massive multiple-input multiple-output (MIMO) transmission technolog...
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03/01/2022
Beam Squint-Aware Integrated Sensing and Communications for Hybrid Massive MIMO LEO Satellite Systems
The space-air-ground-sea integrated network (SAGSIN) plays an important ...
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02/12/2022
On the Impacts of Phase Shifting Design and Eavesdropping Uncertainty on Secrecy Metrics of RIS-aided Systems
This paper investigates the secrecy outage probability (SOP), the lower ...
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01/31/2022
Uplink Transmit Design for Massive MIMO LEO Satellite Communications
This paper investigates the uplink (UL) transmit design for massive mult...
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01/28/2022
Impact of Phase-Noise and Spatial Correlation on Double-RIS-Assisted Multiuser MISO Networks
We study the performance of a phase-noise impaired double reconfigurable...
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01/24/2022
Dynamic Bandwidth Allocation and Edge Caching Optimization for Nonlinear Content Delivery through Flexible Multibeam Satellites
The next generation multibeam satellites open up a new way to design sat...
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01/17/2022
Hybrid Analog/Digital Precoding for Downlink Massive MIMO LEO Satellite Communications
Massive multiple-input multiple-output (MIMO) is promising for low earth...
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01/06/2022
Active Terminal Identification, Channel Estimation, and Signal Detection for Grant-Free NOMA-OTFS in LEO Satellite Internet-of-Things
This paper investigates the massive connectivity of low Earth orbit (LEO...
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12/16/2021
Effective Rate of RIS-aided Networks with Location and Phase Estimation Uncertainty
Reconfigurable Intelligent Surfaces (RIS) are planar structures connecte...
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10/25/2021
Controlling Smart Propagation Environments: Long-Term versus Short-Term Phase Shift Optimization
Reconfigurable intelligent surfaces (RISs) have recently gained signific...
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10/13/2021
Joint Optimization of Beam-Hopping Design and NOMA-Assisted Transmission for Flexible Satellite Systems
Next-generation satellite systems require more flexibility in resource m...
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10/06/2021
User Scheduling and Power Allocation for Precoded Multi-Beam High Throughput Satellite Systems with Individual Quality of Service Constraints
For extensive coverage areas, multi-beam high throughput satellite (MB-H...
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09/12/2021
RIS and Cell-Free Massive MIMO: A Marriage For Harsh Propagation Environments
This paper considers Cell-Free Massive Multiple Input Multiple Output (M...
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09/11/2021
Successive Decode-and-Forward Relaying with Reconfigurable Intelligent Surfaces
The key advantage of successive relaying (SR) networks is their ability ...
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09/06/2021
Robust Congestion Control for Demand-Based Optimization in Precoded Multi-Beam High Throughput Satellite Communications
High-throughput satellite communications systems are growing in strategi...
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08/30/2021
Simultaneous Control Information and Power Transmission for Reconfigurable Intelligent Surfaces
Reconfigurable intelligent surfaces (RISs) are planar structures with at...
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07/29/2021
Heterogeneously-Distributed Joint Radar Communications: Bayesian Resource Allocation
Due to spectrum scarcity, the coexistence of radar and wireless communic...
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07/26/2021
Double-RIS Communication with DF Relaying for Coverage Extension: Is One Relay Enough?
In this work, we investigate the decode-and-forward (DF) relay-aided dou...
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07/14/2021
Frequency-packed Faster-than-Nyquist Signaling via Symbol-level Precoding for Multi-user MISO Redundant Transmissions
This work addresses the issue of interference generated by co-channel us...
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07/14/2021
Evolution of Non-Terrestrial Networks From 5G to 6G: A Survey
Non-terrestrial networks (NTNs) traditionally had certain limited applic...
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07/07/2021
Reconfigurable Intelligent Surface-Assisted Massive MIMO: Favorable Propagation, Channel Hardening, and Rank Deficiency
Massive multiple-input multiple-output (MIMO) and reconfigurable intelli...
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07/04/2021
FedFog: Network-Aware Optimization of Federated Learning over Wireless Fog-Cloud Systems
Federated learning (FL) is capable of performing large distributed machi...
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06/24/2021
User Scheduling for Precoded Satellite Systems with Individual Quality of Service Constraints
Multibeam high throughput satellite (MB-HTS) systems will play a key rol...
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06/18/2021
LEO Satellite Constellations for 5G and Beyond: How Will They Reshape Vertical Domains?
The rapid development of communication technologies in the past decades ...
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06/09/2021
Satellite- and Cache-assisted UAV: A Joint Cache Placement, Resource Allocation, and Trajectory Optimization for 6G Aerial Networks
This paper considers LEO satellite- and cache-assisted UAV communication...
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04/17/2021
Reconfigurable Intelligent Surface-Assisted Cell-Free Massive MIMO Systems Over Spatially-Correlated Channels
Cell-Free Massive multiple-input multiple-output (MIMO) and reconfigurab...
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03/06/2021
Uplink Power Control in Massive MIMO with Double Scattering Channels
Massive multiple-input multiple-output (MIMO) is a key technology for im...
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02/22/2021
Outage Probability Analysis of IRS-Assisted Systems Under Spatially Correlated Channels
This paper investigates the impact of spatial channel correlation on the...
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02/20/2021
Efficient Numerical Methods for Secrecy Capacity of Gaussian MIMO Wiretap Channel
This paper presents two different low-complexity methods for obtaining t...
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02/10/2021
Massive MIMO under Double Scattering Channels: Power Minimization and Congestion Controls
This paper considers a massive MIMO system under the double scattering c...
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01/18/2021
Machine Learning-Enabled Joint Antenna Selection and Precoding Design: From Offline Complexity to Online Performance
We investigate the performance of multi-user multiple-antenna downlink s...
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12/28/2020
On the Performance of One-Bit DoA Estimation via Sparse Linear Arrays
Direction of Arrival (DoA) estimation using Sparse Linear Arrays (SLAs) ...
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12/10/2020
On the MIMO Secrecy Capacity of MIMO Wiretap Channels: Convex Reformulation and Efficient Numerical Methods
This paper presents novel numerical approaches to finding the secrecy ca...
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11/16/2020
Throughput Maximization for Wireless Communication systems with Backscatter- and Cache-assisted UAV Technology
Unmanned aerial vehicle (UAV) has been widely adopted in wireless system...
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11/08/2020