167 citations · 577 across the 34 of their papers we have counts for
18 papers · 1 filter
Multi-Domain Optimization Framework for ISAC: From Electromagnetic Shaping to Network Cooperation
Rang Liu, Ming Li, Mehdi Zafari +2
Integrated sensing and communication (ISAC) has emerged as a key feature for sixth-generation (6G) networks, providing an opportunity to meet the dual demands of communication and…
GNN-enabled Precoding for Massive MIMO LEO Satellite Communications
Huibin Zhou, Xinrui Gong, Christos G. Tsinos +3
Low Earth Orbit (LEO) satellite communication is a critical component in the development of sixth generation (6G) networks. The integration of massive multiple-input multiple-outpu…
Exploiting Symmetric Non-Convexity for Multi-Objective Symbol-Level DFRC Signal Design
Ly V. Nguyen, Rang Liu, Nhan Thanh Nguyen +3
Symbol-level precoding (SLP) is a promising solution for addressing the inherent interference problem in dual-functional radar-communication (DFRC) signal designs. This paper consi…
Channel-Coded Precoding for Multi-User MISO Systems
Ly V. Nguyen, Junil Choi, Bjorn Ottersten +1
Precoding is a critical and long-standing technique in multi-user communication systems. However, the majority of existing precoding methods do not consider channel coding in their…
Opportunities for Intelligent Reflecting Surfaces in 6G-Empowered V2X Communications
Wali Ullah Khan, Asad Mahmood, Arash Bozorgchenani +7
This paper first describes the introduction of 6G-empowered V2X communications and IRS technology. Then it discusses different use case scenarios of IRS enabled V2X communications…
Backscatter-Aided NOMA V2X Communication under Channel Estimation Errors
Wali Ullah Khan, Muhammad Ali Jamshed, Asad Mahmood +3
Backscatter communications (BC) has emerged as a promising technology for providing low-powered transmissions in nextG (i.e., beyond 5G) wireless networks. The fundamental idea of…
When RIS Meets GEO Satellite Communications: A New Sustainable Optimization Framework in 6G
Wali Ullah Khan, Eva Lagunas, Asad Mahmood +2
Reflecting intelligent surfaces (RIS) is a low-cost and energy-efficient solution to achieve high spectral efficiency in sixth-generation (6G) networks. The basic idea of RIS is to…
Widely-distributed Radar Imaging Based on Consensus ADMM
Ruizhi Hu, Bhavani Shankar Mysore Rama Rao, Ahmed Murtada +2
A widely-distributed radar system is a promising architecture to enhance radar imaging performance. However, most existing algorithms rely on isotropic scattering assumption, which…
Multi-Antenna Data-Driven Eavesdropping Attacks and Symbol-Level Precoding Countermeasures
Abderrahmane Mayouche, Wallace A. Martins, Christos G. Tsinos +2
In this work, we consider secure communications in wireless multi-user (MU) multiple-input single-output (MISO) systems with channel coding in the presence of a multi-antenna eaves…
System Modelling and Design Aspects of Next Generation High Throughput Satellites
Shree Krishna Sharma, Jorge Querol, Nicola Maturo +2
Future generation wireless networks are targeting the convergence of fixed, mobile and broadcasting systems with the integration of satellite and terrestrial systems towards utiliz…
Reconfigurable Intelligent Surfaces for Smart Cities: Research Challenges and Opportunities
Steven Kisseleff, Wallace A. Martins, Hayder Al-Hraishawi +2
The concept of Smart Cities has been introduced as a way to benefit from the digitization of various ecosystems at a city level. To support this concept, future communication netwo…
Short-Packet Communications for MIMO NOMA Systems over Nakagami-m Fading: BLER and Minimum Blocklength Analysis
Duc-Dung Tran, Shree Krishna Sharma, Symeon Chatzinotas +2
Recently, ultra-reliable and low-latency communications (URLLC) using short-packets has been proposed to fulfill the stringent requirements regarding reliability and latency of eme…
Joint User Grouping, Scheduling, and Precoding for Multicast Energy Efficiency in Multigroup Multicast Systems
Ashok Bandi, Bhavani Shankar Mysore R, Symeon Chatzinotas +1
This paper studies the joint design of user grouping, scheduling (or admission control) and precoding to optimize energy efficiency (EE) for multigroup multicast scenarios in singl…
On the Spectral and Energy Efficiencies of Full-Duplex Cell-Free Massive MIMO
Hieu V. Nguyen, Van-Dinh Nguyen, Octavia A. Dobre +4
In-band full-duplex (FD) operation is practically more suited for short-range communications such as WiFi and small-cell networks, due to its current practical limitations on the s…
A Bayesian Poisson-Gaussian Process Model for Popularity Learning in Edge-Caching Networks
Sajad Mehrizi, Anestis Tsakmalis, Symeon Chatzinotas +1
Edge-caching is recognized as an efficient technique for future cellular networks to improve network capacity and user-perceived quality of experience. To enhance the performance o…
A Joint Solution for Scheduling and Precoding in Multiuser MISO Downlink Channels
Ashok Bandi, Bhavani Shankar Mysore R, Symeon Chatzinotas +1
The long-term average performance of the MISO downlink channel, with a large number of users compared to transmit antennas of the BS, depends on the interference management which n…
Power Minimizer Symbol-Level Precoding: A Closed-Form Sub-Optimal Solution
A. Haqiqatnejad, F. Kayhan, B. Ottersten
In this letter, we study the optimal solution of the multiuser symbol-level precoding (SLP) for minimization of the total transmit power under given signal-to-interference-plus-noi…
Symbol-Level Precoding Design Based on Distance Preserving Constructive Interference Regions
Alireza Haqiqatnejad, Farbod Kayhan, Bjorn Ottersten
In this paper, we investigate the symbol-level precoding (SLP) design problem in the downlink of a multiuser multiple-input single-output (MISO) channel. We consider generic conste…