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Mobile-edge computing (MEC) is an emerging technology for enhancing the computational capabilities of mobile devices and reducing their energy consumption via offloading complex computation tasks to the nearby servers. Multiuser MEC at…

Information Theory · Computer Science 2018-11-20 Zezu Liang , Yuan Liu , Tat-Ming Lok , Kaibin Huang

A large-scale distributed antenna system that serves the users by coherent joint transmission is called Cell-free Massive MIMO (multiple input multiple output). For a given user set, only a subset of the access points (APs) is likely needed…

Information Theory · Computer Science 2019-11-27 Trinh Van Chien , Emil Björnson , Erik G. Larsson

Recently, elevated LiDAR (ELiD) has been proposed as an alternative to local LiDAR sensors in autonomous vehicles (AV) because of the ability to reduce costs and computational requirements of AVs, reduce the number of overlapping sensors…

Signal Processing · Electrical Eng. & Systems 2020-03-24 Michael C. Lucic , Hakim Ghazzai , Ahmad Alsharoa , Yehia Massoud

Limited capacity of fronthaul links in a cell-free massive multiple-input multiple-output (MIMO) system can cause quantization errors at a central processing unit (CPU) during data transmission, complicating the centralized rate…

Signal Processing · Electrical Eng. & Systems 2024-03-29 Minje Kim , In-soo Kim , Junil Choi

Distributed computing enables large-scale computation tasks to be processed over multiple workers in parallel. However, the randomness of communication and computation delays across workers causes the straggler effect, which may degrade the…

Distributed, Parallel, and Cluster Computing · Computer Science 2022-07-20 Yuxuan Sun , Fan Zhang , Junlin Zhao , Sheng Zhou , Zhisheng Niu , Deniz Gündüz

Collaborative edge computing (CEC) is an emerging paradigm where heterogeneous edge devices collaborate to fulfill computation tasks, such as model training or video processing, by sharing communication and computation resources.…

Distributed, Parallel, and Cluster Computing · Computer Science 2022-05-27 Jinkun Zhang , Yuezhou Liu , Edmund Yeh

For in-vehicle application, the vehicles with different speeds have different delay requirements. However, vehicle speeds have not been extensively explored, which may cause mismatching between vehicle speed and its allocated computation…

Networking and Internet Architecture · Computer Science 2020-08-20 Xinyu Huang , Lijun He , Wanyue Zhang

Mobile edge computing (MEC) and millimeter wave (mmWave) communications are capable of significantly reducing the network's delay and enhancing its capacity. In this paper we investigate a mmWave and device-to-device (D2D) assisted MEC…

Signal Processing · Electrical Eng. & Systems 2022-07-19 Yanzhen Liu , Yunlong Cai , An Liu , Minjian Zhao , Lajos Hanzo

Edge computing (EC), positioned near end devices, holds significant potential for delivering low-latency, energy-efficient, and secure services. This makes it a crucial component of the Internet of Things (IoT). However, the increasing…

Computer Science and Game Theory · Computer Science 2024-12-03 Yang Li , Xing Zhang , Bo Lei , Qianying Zhao , Min Wei , Zheyan Qu , Wenbo Wang

We develop a framework to optimize the tradeoff between diversity, multiplexing, and delay in MIMO systems to minimize end-to-end distortion. We first focus on the diversity-multiplexing tradeoff in MIMO systems, and develop analytical…

Information Theory · Computer Science 2008-04-09 Tim Holliday , Andrea J. Goldsmith , H. Vincent Poor

In what ways could cellular massive MIMO be improved? This technology has already been shown to bring huge performance gains. However, coverage holes and difficulties to transmit multiple streams to multi-antenna users because of…

Signal Processing · Electrical Eng. & Systems 2025-01-08 Sara Willhammar , Hiroki Iimori , Joao Vieira , Lars Sundström , Fredrik Tufvesson , Erik G. Larsson

We investigate the energy efficiency performance of cell-free Massive multiple-input multiple-output (MIMO), where the access points (APs) are connected to a central processing unit (CPU) via limited-capacity links. Thanks to the…

Information Theory · Computer Science 2019-07-09 Manijeh Bashar , Kanapathippillai Cumanan , Alister G. Burr , Hien Quoc Ngo , Erik G. Larsson , Pei Xiao

We present a joint sub-channel and power allocation framework for downlink transmission an orthogonal frequency-division multiple access (OFDMA)-based cellular network composed of a macrocell overlaid by small cells. In this framework, the…

Networking and Internet Architecture · Computer Science 2016-11-15 Amr Abdelnasser , Ekram Hossain , Dong In Kim

In this work, we propose a clustering technique based on information rates for cell-free massive multiple-input multiple-output (MIMO) networks. Unlike existing clustering approaches that rely on the large scale fading coefficients of the…

Information Theory · Computer Science 2024-04-30 S. Mashdour , R. C. de Lamare

This paper investigates the intelligent computing task-oriented computing offloading and semantic compression in mobile edge computing (MEC) systems. With the popularity of intelligent applications in various industries, terminals…

Networking and Internet Architecture · Computer Science 2023-07-07 Yuanpeng Zheng , Tiankui Zhang , Rong Huang , Yapeng Wang

The low-altitude networks (LANs) integrating unmanned aerial vehicles (UAVs) and high-altitude platforms (HAPs) have become a promising solution for the rising computation demands. However, the uncertain task sizes and high mobility of UAVs…

Computational Engineering, Finance, and Science · Computer Science 2025-10-28 Guanwang Jiang , Ziye Jia , Can Cui , Lijun He , Qiuming Zhu , Qihui Wu

Mobile Edge Computing (MEC) has recently emerged as a promising technology in the 5G era. It is deemed an effective paradigm to support computation-intensive and delay critical applications even at energy-constrained and computation-limited…

Systems and Control · Electrical Eng. & Systems 2022-02-09 Han Hu , Weiwei Song , Qun Wang , Rose Qingyang Hu , Hongbo Zhu

Mobile edge computing (MEC) has recently emerged as a promising technology to release the tension between computation-intensive applications and resource-limited mobile terminals (MTs). In this paper, we study the delay-optimal computation…

Signal Processing · Electrical Eng. & Systems 2019-06-25 Xianling Meng , Wei Wang , Yitu Wang , Vincent K. N. Lau , Zhaoyang Zhang

Mobile Edge Computing (MEC) enables rich services in close proximity to the end users to provide high quality of experience (QoE) and contributes to energy conservation compared with local computing, but results in increased communication…

Networking and Internet Architecture · Computer Science 2020-03-31 Mingxiong Zhao , Jun-Jie Yu , Wen-Tao Li , Di Liu , Shaowen Yao , Wei Feng , Changyang She , Tony Q. S. Quek

To overcome devices' limitations in performing computation-intense applications, mobile edge computing (MEC) enables users to offload tasks to proximal MEC servers for faster task computation. However, current MEC system design is based on…

Networking and Internet Architecture · Computer Science 2020-05-19 Chen-Feng Liu , Mehdi Bennis , Merouane Debbah , H. Vincent Poor