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Millimeter-wave cellular communication requires beamforming procedures that enable alignment of the transmitter and receiver beams as the user equipment (UE) moves. For efficient beam tracking it is advantageous to classify users according…

Information Theory · Computer Science 2021-09-14 Dino Pjanić , Alexandros Sopasakis , Harsh Tataria , Fredrik Tufvesson , Andres Reial

One of the most promising approaches to overcome the drastic channel variations of millimeter wave (mmW) communications is to deploy dual-mode base stations that integrate both mmW and microwave (\muW) frequencies. Reaping the benefits of a…

Information Theory · Computer Science 2016-11-17 Omid Semiari , Walid Saad , Mehdi Bennis

In this paper, we focus on the problem of data sharing over a wireless computer network (i.e., a wireless grid). Given a set of available data, we present a distributed algorithm which operates over a dynamically changing network, and…

Systems and Control · Electrical Eng. & Systems 2022-07-19 Apostolos I. Rikos , Christoforos N. Hadjicostis , Karl H. Johansson

In the context of quantum secure scenarios, existing research on mobile edge devices and intelligent computing and edge (ICE) systems based on the Non-Orthogonal Multiple Access (NOMA) communication model have overlooked the energy…

Information Theory · Computer Science 2026-04-30 Yongtao Yao , Wenjing Xiao , Miaojiang Chen , Anfeng Liu , Zhiquan Liu , Min Chen , Ahmed Farouk , H. Herbert Song

Ultra-dense network deployment has been proposed as a key technique for achieving capacity goals in the fifth-generation (5G) mobile communication system. However, the deployment of smaller cells inevitably leads to more frequent handovers,…

Networking and Internet Architecture · Computer Science 2018-06-13 Chujie Wang , Zhifeng Zhao , Qi Sun , Honggang Zhang

This paper considers a mmWave cell-free massive MIMO (multiple-input multiple-output) network composed of a large number of geographically distributed access points (APs) simultaneously serving multiple user equipments (UEs) via coherent…

Signal Processing · Electrical Eng. & Systems 2023-11-03 Mahmoud Zaher , Emil Björnson , Marina Petrova

Network energy saving has received great attention from operators and vendors to reduce energy consumption and CO2 emissions to the environment as well as significantly reduce costs for mobile network operators. However, the design of…

Networking and Internet Architecture · Computer Science 2024-08-21 Dinh-Hieu Tran , Nguyen Van Huynh , Soumeya Kaada , Van Nhan Vo , Eva Lagunas , Symeon Chatzinotas

In this paper, we propose a novel Adaptive Transmission Strategy to improve energy efficiency~(EE) in a wireless point-to-point transmission system with Quality of Service~(QoS) requirement, i.e., delay-outage probability considered. The…

Information Theory · Computer Science 2018-07-24 Linlin Zou , Yanzhao Hou , Xiaofeng Tao , Qimei Cui , Xueqing Huang

Movable antennas (MAs) have attracted significant attention in wireless communications due to their ability to reconfigure channel conditions by flexibly adjusting the antenna positions within a confined region. However, MA movement…

Signal Processing · Electrical Eng. & Systems 2026-05-07 Jiaxuan Li , Weidong Mei , Changhao Liu , Zhi Chen , Boyu Ning , Rui Zhang

One of the major challenges in Dynamic Spectrum Access (DSA) systems is to guarantee a required level of Quality of Service (QoS) to secondary users of the spectrum. In this paper, we propose efficient algorithms for deriving optimal…

Information Theory · Computer Science 2016-07-08 Spyridon Vassilaras , George C. Alexandropoulos

Ensuring smooth mobility management while employing directional beamformed transmissions in 5G millimeter-wave networks calls for robust and accurate user equipment (UE) localization and tracking. In this article, we develop neural…

Signal Processing · Electrical Eng. & Systems 2024-06-25 Roman Klus , Jukka Talvitie , Julia Vinogradova , Gabor Fodor , Johan Torsner , Mikko Valkama

Beam alignment (BA) in modern millimeter wave standards such as 5G NR and WiGig (802.11ay) is based on exhaustive and/or hierarchical beam searches over pre-defined codebooks of wide and narrow beams. This approach is slow and…

Information Theory · Computer Science 2024-03-26 Yuqiang Heng , Yu Zhang , Ahmed Alkhateeb , Jeffrey G. Andrews

User association is necessary in dense millimeter wave (mmWave) networks to determine which base station a user connects to in order to balance base station loads and maximize throughput. Given that mmWave connections are highly directional…

Information Theory · Computer Science 2019-01-29 Alireza Alizadeh , Mai Vu

Millimeter-wave (mmWave) frequency bands offer a new frontier for next-generation wireless networks, popularly known as 5G, to enable multi-gigabit communication; however, the availability and reliability of mmWave signals are significantly…

Networking and Internet Architecture · Computer Science 2018-12-20 Biswa P. S. Sahoo , Chung-Wei Weng , Hung-Yu Wei

This study addresses the challenge of access point (AP) and user equipment (UE) association in cell-free massive MIMO networks. It introduces a deep learning algorithm leveraging Bidirectional Long Short-Term Memory cells and a hybrid…

Machine Learning · Computer Science 2025-03-07 Giovanni Di Gennaro , Amedeo Buonanno , Gianmarco Romano , Stefano Buzzi , Francesco A. N. Palmieri

We propose a novel analytical framework for evaluating the coverage performance of a millimeter wave (mmWave) cellular network where idle user equipments (UEs) act as relays. In this network, the base station (BS) adopts either the direct…

Information Theory · Computer Science 2019-12-30 Simin Xu , Nan Yang , Biao He , Hamid Jafarkhani

In this work, we address the issue of quality of experience (QoE) in unmanned aerial vehicle (UAV) aided multiuser rate-splitting multiple access (RSMA) networks under secrecy constraints. The problem is formulated as maximization of sum…

Networking and Internet Architecture · Computer Science 2024-05-24 Abuzar B. M. Adam , Xiaoyu Wan , Mohammed Saleh Ali Muthanna

We use fluid limits to explore the (in)stability properties of wireless networks with queue-based random-access algorithms. Queue-based random-access schemes are simple and inherently distributed in nature, yet provide the capability to…

Networking and Internet Architecture · Computer Science 2013-02-26 Javad Ghaderi , Sem Borst , Phil Whiting

One effective way to optimize the offloading process is by minimizing the transmission time. This is particularly true in a Vehicular Adhoc Network (VANET) where vehicles frequently download and upload High-definition (HD) map data which…

Networking and Internet Architecture · Computer Science 2024-11-26 Jeffrey Redondo , Zhenhui Yuan , Nauman Aslam , Juan Zhang

Quantum federated learning (QFL) combines the robust data processing of quantum computing with the privacy-preserving features of federated learning (FL). However, in large-scale wireless networks, optimizing sum-rate is crucial for…

Information Theory · Computer Science 2026-03-03 Shaba Shaon , Christopher G. Brinton , Dinh C. Nguyen