116 citations · 196 across the 23 of their papers we have counts for
24 papers
Context-Aware Markov VAE for CSI Compression in Wireless Systems
Efstathios Chatziloizos, Konstantinos Vandikas, Aneta Vulgarakis Feljan +2
This paper considers neural channel state information (CSI) compression for time-varying massive multiple-input multiple-output (MIMO) channels in frequency division duplex (FDD) s…
Dynamic Scheduling for Federated Edge Learning with Streaming Data
Chung-Hsuan Hu, Zheng Chen, Erik G. Larsson
In this work, we consider a Federated Edge Learning (FEEL) system where training data are randomly generated over time at a set of distributed edge devices with long-term energy co…
Decentralized Learning over Wireless Networks: The Effect of Broadcast with Random Access
Zheng Chen, Martin Dahl, Erik G. Larsson
In this work, we focus on the communication aspect of decentralized learning, which involves multiple agents training a shared machine learning model using decentralized stochastic…
Distributed Consensus in Wireless Networks with Probabilistic Broadcast Scheduling
Daniel Pérez Herrera, Zheng Chen, Erik G. Larsson
We consider distributed average consensus in a wireless network with partial communication to reduce the number of transmissions in every iteration/round. Considering the broadcast…
Scheduling and Aggregation Design for Asynchronous Federated Learning over Wireless Networks
Chung-Hsuan Hu, Zheng Chen, Erik G. Larsson
Federated Learning (FL) is a collaborative machine learning (ML) framework that combines on-device training and server-based aggregation to train a common ML model among distribute…
Over-the-Air Computation for Distributed Systems: Something Old and Something New
Zheng Chen, Erik G. Larsson, Carlo Fischione +2
Facing the upcoming era of Internet-of-Things and connected intelligence, efficient information processing, computation, and communication design becomes a key challenge in large-s…
Robust Beamforming Design for IRS-Aided URLLC in D2D Networks
Jing Cheng, Chao Shen, Zheng Chen +1
Intelligent reflecting surface (IRS) and device-to-device (D2D) communication are two promising technologies for improving transmission reliability between transceivers in communic…
Treating Interference as Noise in Cell-Free Massive MIMO Networks
Shuaifei Chen, Jiayi Zhang, Zheng Chen +1
How to manage the interference introduced by the enormous wireless devices is a crucial issue to address in the prospective sixth-generation (6G) communications. The treating inter…
On-Demand AoI Minimization in Resource-Constrained Cache-Enabled IoT Networks with Energy Harvesting Sensors
Mohammad Hatami, Markus Leinonen, Zheng Chen +2
We consider a resource-constrained IoT network, where multiple users make on-demand requests to a cache-enabled edge node to send status updates about various random processes, eac…
RIS-aided D2D Communication Design for URLLC Packet Delivery
Jing Cheng, Chao Shen, Zheng Chen +1
In this paper, we consider a smart factory scenario where a set of actuators receive critical control signals from an access point (AP) with reliability and low latency requirement…
Device Scheduling and Update Aggregation Policies for Asynchronous Federated Learning
Chung-Hsuan Hu, Zheng Chen, Erik G. Larsson
Federated Learning (FL) is a newly emerged decentralized machine learning (ML) framework that combines on-device local training with server-based model synchronization to train a c…
Consensus-Based Distributed Computation of Link-Based Network Metrics
Zheng Chen, Erik G. Larsson
Average consensus algorithms have wide applications in distributed computing systems where all the nodes agree on the average value of their initial states by only exchanging infor…
Throughput and Age of Information in a Cellular-based IoT Network
Praful D. Mankar, Zheng Chen, Mohamed A. Abd-Elmagid +2
This paper studies the interplay between device-to-device (D2D) communications and real-time monitoring systems in a cellular-based Internet of Things (IoT) network. In particular,…
Dynamic Resource Allocation in Co-Located and Cell-Free Massive MIMO
Zheng Chen, Emil Björnson, Erik G. Larsson
In this paper, we study joint power control and scheduling in uplink massive multiple-input multiple-output (MIMO) systems with randomly arriving data traffic. We consider both co-…
Dynamic Scheduling and Power Control in Uplink Massive MIMO with Random Data Arrivals
Zheng Chen, Emil Björnson, Erik G. Larsson
In this paper, we study the joint power control and scheduling in uplink massive multiple-input multiple-output (MIMO) systems with random data arrivals. The data is generated at e…
Age of Information in a Multiple Access Channel with Heterogeneous Traffic and an Energy Harvesting Node
Zheng Chen, Nikolaos Pappas, Emil Björnson +1
Age of Information (AoI) is a newly appeared concept and metric to characterize the freshness of data. In this work, we study the delay and AoI in a multiple access channel (MAC) w…
When Is the Achievable Rate Region Convex in Two-User Massive MIMO Systems?
Zheng Chen, Emil Björnson, Erik G. Larsson
This letter investigates the achievable rate region in Massive multiple-input-multiple-output (MIMO) systems with two users, with focus on the i.i.d.~Rayleigh fading and line-of-si…
Modeling and Analysis of MPTCP Proxy-based LTE-WLAN Path Aggregation
Bolin Chen, Zheng Chen, Nikolaos Pappas +2
Long Term Evolution (LTE)-Wireless Local Area Network (WLAN) Path Aggregation (LWPA) based on Multi-path Transmission Control Protocol (MPTCP) has been under standardization proced…
Channel Hardening and Favorable Propagation in Cell-Free Massive MIMO with Stochastic Geometry
Zheng Chen, Emil Björnson
Cell-Free (CF) Massive MIMO is an alternative topology for future wireless networks, where a large number of single-antenna access points (APs) are distributed over the coverage ar…
Throughput and Delay Analysis of Wireless Caching Helper Systems with Random Availability
Nikolaos Pappas, Zheng Chen, Ioannis Dimitriou
In this paper, we investigate the effect of bursty traffic and random availability of caching helpers in a wireless caching system. More explicitly, we consider a general system co…
Probabilistic Caching in Wireless D2D Networks: Cache Hit Optimal vs. Throughput Optimal
Zheng Chen, Nikolaos Pappas, Marios Kountouris
Departing from the conventional cache hit optimization in cache-enabled wireless networks, we consider an alternative optimization approach for the probabilistic caching placement…
Decentralized Opportunistic Access for D2D Underlaid Cellular Networks
Zheng Chen, Marios Kountouris
We propose a decentralized access control scheme for interference management in D2D (device-to-device) underlaid cellular networks. Our method combines SIR-aware link activation wi…
Cooperative Caching and Transmission Design in Cluster-Centric Small Cell Networks
Zheng Chen, Jemin Lee, Tony Q. S. Quek +1
Wireless content caching in small cell networks (SCNs) has recently been considered as an efficient way to reduce the traffic and the energy consumption of the backhaul in emerging…
Distributed SIR-Aware Opportunistic Access Control for D2D Underlaid Cellular Networks
Zheng Chen, Marios Kountouris
In this paper, we propose a distributed interference and channel-aware opportunistic access control technique for D2D underlaid cellular networks, in which each potential D2D link…