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Recently, several advanced multi-antenna radio communications technologies have emerged to meet the increased capacity demands in wireless multi-user networks. Despite their great potential, the extent of these techniques' practical…

Information Theory · Computer Science 2015-07-16 Konstantinos Ntougias , Dimitrios Ntaikos , Constantinos B. Papadias

Extremely large-scale multiple-input-multiple-output (XL-MIMO), which offers vast spatial degrees of freedom, has emerged as a potentially pivotal enabling technology for the sixth generation (6G) of wireless mobile networks. With its…

Information Theory · Computer Science 2024-01-04 Zhe Wang , Jiayi Zhang , Hongyang Du , Dusit Niyato , Shuguang Cui , Bo Ai , Mérouane Debbah , Khaled B. Letaief , H. Vincent Poor

Massive multiple-input multiple-output (MIMO) systems are considered as one of the leading technologies employed in the next generations of wireless communication networks (5G), which promise to provide higher spectral efficiency, lower…

Emerging Technologies · Computer Science 2021-07-21 Mahsa Salmani , Armaghan Eshaghi , Enxiao Luan , Sreenil Saha

This paper introduces a new efficient autoprecoder (AP) based deep learning approach for massive multiple-input multiple-output (mMIMO) downlink systems in which the base station is equipped with a large number of antennas with…

Networking and Internet Architecture · Computer Science 2022-02-08 Xinying Cheng , Rafik Zayani , Marin Ferecatu , Nicolas Audebert

Motivated by MIMO broad-band fading channel model, in this section a comparative study is presented regarding various uncoded adaptive and non-adaptive MIMO detection algorithms with respect to BER/PER performance, and hardware complexity.…

Other Computer Science · Computer Science 2010-06-17 Nirmalendu Bikas Sinha , R. Bera , M. Mitra

We study the design of receivers in extra-large scale MIMO (XL-MIMO) systems, i.e. systems in which the base station is equipped with an antenna array of extremely large dimensions. While XL-MIMO can significantly increase the system's…

Signal Processing · Electrical Eng. & Systems 2020-07-15 Abolfazl Amiri , Sajad Rezaie , Carles Navarro Manchon , Elisabeth de Carvalho

In pursuit of enhanced quality of service and higher transmission rates, communication within the mid-band spectrum, such as bands in the 6-15 GHz range, combined with extra large-scale multiple-input multiple-output (XL-MIMO), is…

Information Theory · Computer Science 2024-08-21 Jiachen Tian , Yu Han , Xiao Li , Shi Jin , Chao-Kai Wen

M-MIMO is one of the crucial technologies for increasing spectral and energy efficiency of wireless networks. Most of the current works assume that M-MIMO arrays are equipped with a linear front end. However, ongoing efforts to make…

Machine Learning · Computer Science 2026-04-20 Marcin Hoffmann , Paweł Kryszkiewicz

The rapid advancement of Large Language Models (LLMs) has revolutionized various aspects of human life, yet their immense computational and energy demands pose significant challenges for efficient inference. The memory wall, the growing…

Hardware Architecture · Computer Science 2025-09-18 Hongyi Li , Songchen Ma , Huanyu Qu , Weihao Zhang , Jia Chen , Junfeng Lin , Fengbin Tu , Rong Zhao

This paper deals with linear equalization in massive multi-user multiple-input multiple-output (MU-MIMO) wireless systems. We first provide simple conditions on the antenna configuration for which the well-known linear minimum mean-square…

Information Theory · Computer Science 2018-11-12 Ramina Ghods , Charles Jeon , Gulnar Mirza , Arian Maleki , Christoph Studer

The mid-band frequency range, combined with extra large-scale multiple-input multiple-output (XL-MIMO), is emerging as a key enabler for future communication systems. Thanks to the advent of new spectrum resources and degrees of freedom…

Signal Processing · Electrical Eng. & Systems 2025-10-06 Jiachen Tian , Yu Han , Zhengtao Jin , Xi Yang , Jie Yang , Wankai Tang , Xiao Li , Wenjin Wang , Shi Jin

The increasing demand for wireless data transfer has been the driving force behind the widespread adoption of Massive MIMO (multiple-input multiple-output) technology in 5G. The next-generation MIMO technology is now being developed to…

The Fluid Antenna System (FAS), which enables flexible Multiple-Input Multiple-Output (MIMO) communications, introduces new spatial degrees of freedom for next-generation wireless networks. Unlike traditional MIMO, FAS involves joint port…

Information Theory · Computer Science 2025-06-18 Chao Wang , Kai-Kit Wong , Zan Li , Liang Jin , Chan-Byoung Chae

Multi-Cell (MC) systems are present in mobile network operations from the first generation to the fifth generation of wireless networks, and considers the signals of all users to a base station (BS) centered in a cell. Cell-Free (CF)…

Information Theory · Computer Science 2022-10-04 E. F. de Almeida , R. C. de Lamare

Cell-free massive multiple-input multiple-output (MIMO) implemented in virtualized cloud radio access networks (V-CRAN) has emerged as a promising architecture to enhance spectral efficiency (SE), network flexibility, and energy efficiency…

Signal Processing · Electrical Eng. & Systems 2025-09-23 Derya Nurcan-Atceken , Özlem Tuğfe Demir , Aysegul Altin-Kayhan , Emil Björnson , Cicek Cavdar , Bulent Tavli

A practical and scalable multicast beamformer design in multi-input multi-output~(MIMO) coded caching~(CC) systems is introduced in this paper. The proposed approach allows multicast transmission to multiple groups with partially…

Information Theory · Computer Science 2023-12-06 Mohammad NaseriTehrani , MohammadJavad Salehi , Antti Tölli

This paper studies a wireless-energy-transfer (WET) enabled massive multiple-input-multiple-output (MIMO) system (MM) consisting of a hybrid data-and-energy access point (H-AP) and multiple single-antenna users. In the WET-MM system, the…

Information Theory · Computer Science 2016-11-18 Gang Yang , Chin Keong Ho , Rui Zhang , Yong Liang Guan

To meet the unprecedented mobile traffic demands of future wireless networks, a paradigm shift from conventional cellular networks to distributed communication systems is imperative. Cell-free massive multiple-input multiple-output…

Information Theory · Computer Science 2024-08-28 Mohammadali Mohammadi , Zahra Mobini , Hien Quoc Ngo , Michail Matthaiou

Cell-free (CF) multiuser multiple-input multiple-output (MU-MIMO) systems are an emerging technology that provides service simultaneously to multiple users but suffers from multiuser interference (MUI). In this work, we propose a robust…

Information Theory · Computer Science 2025-02-27 A. Flores , R. de Lamare

The updated physical layer standard of the fifth generation wireless communication suggests the necessity of a rapid prototyping platform. To this end, we develop RaPro, a multi-core general purpose processor-based massive…

Signal Processing · Electrical Eng. & Systems 2018-02-23 Xuanxuan Gao , Zhichao Huang , Xintong Lu , Senjie Zhang , Chao-Kai Wen , Shi Jin