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This study employs a uniform rectangular array (URA) sub-connected hybrid beamforming (SC-HBF) architecture to provide a novel self-interference (SI) suppression scheme in a full-duplex (FD) massive multiple-input multiple-output (mMIMO)…

信息论 · 计算机科学 2024-02-14 Mobeen Mahmood , Yuanxing Zhang , Robert Morawski , Tho Le-Ngoc

This paper tackles the problem of single-user multiple-input multiple-output communication with 1-bit digital-to-analog and analog-to-digital converters. With the information-theoretic capacity as benchmark, the complementary strategies of…

信息论 · 计算机科学 2021-09-10 Angel Lozano

This work investigates a multi-user, multi-antenna uplink wireless system, in which multiple users transmit signals to a base station. Prior research has explored the potential for linear growth in spectral efficiency by employing multiple…

信号处理 · 电气工程与系统科学 2025-06-27 Sajad Daei , Gabor Fodor , Mikael Skoglund

Analog Beamsteering (ABS) has emerged as a low complexity, power efficient solution for MillimeterWave (mmWave) massive Multiple Input Multiple Output (MIMO) systems. Moreover, driven by the low spatial correlation between the User…

信号处理 · 电气工程与系统科学 2019-02-01 Mohamed Shehata , Matthieu Crussière , Maryline Hélard

A wireless network of multiple transmitter-user pairs overheard by an eavesdropper, where the transmitters are equipped with multiple antennas while the users and eavesdropper are equipped with a single antenna, is considered. At different…

信息论 · 计算机科学 2018-08-01 Zhichao Sheng , Hoang Duong Tuan , Trung Q. Duong , H. Vincent Poor

This paper compares two important downlink multicell interference mitigation techniques, namely, large-scale (LS) multiple-input multiple-output (MIMO) and network MIMO. We consider a cooperative wireless cellular system operating in…

信息论 · 计算机科学 2014-07-23 Kianoush Hosseini , Wei Yu , Raviraj S. Adve

To accommodate the explosive wireless traffics, massive multiple-input multiple-output (MIMO) is regarded as one of the key enabling technologies for next-generation communication systems. In massive MIMO cellular networks, coordinated…

信息论 · 计算机科学 2023-03-27 Jungang Ge , Ying-Chang Liang , Liao Zhang , Ruizhe Long , Sumei Sun

In this letter, the maximization of resistible jamming power is studied for multi-user downlink millimeter-wave cell-free multiple-input-multiple-output (CF-MIMO) systems. We propose an alternate optimization-based anti-jamming hybrid…

信号处理 · 电气工程与系统科学 2024-10-15 Zilong Wang , Cheng Zhang , Changwei Zhang , Yongming Huang

Millimeter wave (mmWave) communication represents one of the main innovations of the next generation of wireless technologies, allowing users to reach unprecedented data rates. To overcome the high path loss at mmWave frequencies, these…

信号处理 · 电气工程与系统科学 2020-11-12 Mattia Lecci , Tommaso Zugno , Silvia Zampato , Michele Zorzi

Massive MIMO base stations use multiple spatial diversity branches, which are often assumed to be uncorrelated in theoretical work. Correlated branches are considered seldom since they are mathematically less tractable. For correlated…

信号处理 · 电气工程与系统科学 2022-02-02 Jens Abraham , Pablo Ramirez-Espinosa , Torbjörn Ekman

We propose a novel communication design, termed random orthogonalization, for federated learning (FL) in a massive multiple-input and multiple-output (MIMO) wireless system. The key novelty of random orthogonalization comes from the tight…

信息论 · 计算机科学 2022-10-19 Xizixiang Wei , Cong Shen , Jing Yang , H. Vincent Poor

We investigate the capacity attainable for a multiuser MIMO uplink as we scale both array size and bandwidth for regimes in which all-digital arrays incur excessive hardware complexity and power consumption. We consider a tiled hybrid…

信号处理 · 电气工程与系统科学 2025-12-09 Amirmohammad Haddad , Oveys Delafrooz Noroozi , Canan Cebeci , Mark J. W. Rodwell , Upamanyu Madhow

In this paper, we study the beamforming design problem in frequency-division duplexing (FDD) downlink massive MIMO systems, where instantaneous channel state information (CSI) is assumed to be unavailable at the base station (BS). We…

信息论 · 计算机科学 2020-03-09 Hang Liu , Xiaojun Yuan , Ying Jun , Zhang

Millimeter wave (mmWave) communication has attracted increasing attention as a promising technology for 5G networks. One of the key architectural features of mmWave is the use of massive antenna arrays at both the transmitter and the…

网络与互联网体系结构 · 计算机科学 2018-10-02 Qing Xue , Xuming Fang , Ming Xiao

Wi-Fi sensing leveraging plain-text beamforming feedback information (BFI) in multiple-input-multiple-output (MIMO) systems attracts increasing attention. However, due to the implicit relationship between BFI and the channel state…

信号处理 · 电气工程与系统科学 2024-06-11 Xin Li , Jingzhi Hu , Jun Luo

The use of the millimeter (mm) wave spectrum for next generation (5G) mobile communication has gained significant attention recently. The small carrier wavelengths at mmwave frequencies enable synthesis of compact antenna arrays, providing…

信息论 · 计算机科学 2014-10-22 Jaspreet Singh , Sudhir Ramakrishna

The article proposes a novel near-field predictive beamforming framework for high-mobility wireless networks. Specifically, due to the spherical waves and non-uniform Doppler frequencies brought by the near-field region, the new ability of…

信号处理 · 电气工程与系统科学 2025-06-12 Hao Jiang , Zhaolin Wang , Yue Liu , Hyundong Shin , Arumugam Nallanathan , Yuanwei Liu

As the dense deployment of access points (APs) in cell-free massive multiple-input multiple-output (CF-mMIMO) systems presents significant challenges, per-AP coverage can be expanded using large-scale antenna arrays (LAAs). However, this…

信号处理 · 电气工程与系统科学 2025-10-17 Eunhyuk Park , Seok-Hwan Park , Osvaldo Simeone , Marco Di Renzo , Shlomo Shamai

Classical beamforming techniques rely on highly linear transmitters and receivers to allow phase-coherent combining at the transmitter and receiver. The transmitter uses beamforming to steer signal power towards the receiver, and the…

信息论 · 计算机科学 2018-02-15 Kang Gao , J. Nicholas Laneman , Bertrand Hochwald

This work focuses on a large-scale multi-cell multi-user MIMO system in which $L$ base stations (BSs) of $N$ antennas each communicate with $K$ single-antenna user equipments. We consider the design of the linear precoder that minimizes the…

信息论 · 计算机科学 2016-04-27 Luca Sanguinetti , Romain Couillet , Merouane Debbah