24 citations · 32 across the 17 of their papers we have counts for
13 papers · 1 filter
On the Gaussian-Quadratic Rate-Distortion Function for Vector Sources with Individual Distortion Constraints
Shuao Chen, Junyuan Gao, Yuxuan Shi +4
This paper investigates the Gaussian-quadratic lossy compression with arbitrary source length under individual distortion constraints. The rate-distortion function (RDF) is lower-b…
Capacity-Region-Achieving Sparse Regression Codes for MIMO Multiple-Access Channels
Hao Yan, Lei Liu, Yuhao Liu +2
This paper proposes a coding framework for capacity-region-achieving sparse regression (SR) codes over MIMO multiple-access channels (MIMO-MAC), where a single SR code is used for…
FDD CSI Feedback under Finite Downlink Training: A Rate-Distortion Perspective
Shuao Chen, Junyuan Gao, Yuxuan Shi +4
This paper establishes the theoretical limits of channel state information (CSI) feedback in frequency-division duplexing (FDD) multi-antenna orthogonal frequency-division multiple…
Joint Lossy Compression for a Vector Gaussian Source under Individual Distortion Criteria
Shuao Chen, Junyuan Gao, Yuxuan Shi +4
This paper investigates the joint compression problem of a vector Gaussian source, where an individual distortion constraint is imposed on each source component. It is known that t…
A joint channel estimation and beamforming separation principle for massive MIMO systems
Lorenzo Miretti, Slawomir Stańczak, Giuseppe Caire
We demonstrate that separating beamforming (i.e., downlink precoding and uplink combining) and channel estimation in multi-user MIMO wireless systems incurs no loss of optimality u…
Finite-Blocklength Information Theory
Junyuan Gao, Shuao Chen, Yongpeng Wu +4
Traditional asymptotic information-theoretic studies of the fundamental limits of wireless communication systems primarily rely on some ideal assumptions, such as infinite blocklen…
Unsourced Random Access in MIMO Quasi-Static Rayleigh Fading Channels: Finite Blocklength and Scaling Law Analyses
Junyuan Gao, Yongpeng Wu, Giuseppe Caire +3
This paper considers the unsourced random access (URA) problem with a random and unknown number of active users in multiple-input multiple-output (MIMO) quasi-static Rayleigh fadin…
A New Achievable Region of the -User MAC Wiretap Channel with Confidential and Open Messages Under Strong Secrecy
Hao Xu, Kai-Kit Wong, Giuseppe Caire
This paper investigates the achievable region of a -user discrete memoryless (DM) multiple access wiretap (MAC-WT) channel, where each user transmits both secret and open messag…
Unsourced Random Access in MIMO Quasi-Static Rayleigh Fading Channels with Finite Blocklength
Junyuan Gao, Yongpeng Wu, Giuseppe Caire +2
This paper explores the fundamental limits of unsourced random access (URA) with a random and unknown number of active users in MIMO quasi-static Rayleigh fading chann…
Adapt or Wait: Quality Adaptation for Cache-aided Channels
Eleftherios Lampiris, Giuseppe Caire
This work focuses on quality adaptation as a means to counter the effects of channel degradation in wireless, cache-aided channels. We design a delivery scheme which combines coded…
User-Centric Cell-Free Wireless Networks for 6G: Communication Theoretic Models and Research Challenges
Fabian Göttsch, Giuseppe Caire, Wen Xu +1
This paper presents a comprehensive communication theoretic model for the physical layer of a cell-free user-centric network, formed by user equipments (UEs), radio units (RUs), an…
Ultra-Dense Cell-Free Massive MIMO for 6G: Technical Overview and Open Questions
Hien Quoc Ngo, Giovanni Interdonato, Erik G. Larsson +2
Ultra-dense cell-free massive multiple-input multiple-output (CF-MMIMO) has emerged as a promising technology expected to meet the future ubiquitous connectivity requirements and e…
Joint Fronthaul Load Balancing and Computation Resource Allocation in Cell-Free User-Centric Massive MIMO Networks
Zhiyang Li, Fabian Göttsch, Siyao Li +2
We consider scalable cell-free massive multiple-input multiple-output networks under an open radio access network paradigm comprising user equipments (UEs), radio units (RUs), and…