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Dynamic Metasurface Antennas (DMAs) are transforming reconfigurable antenna technology by enabling energy-efficient, cost-effective beamforming through programmable meta-elements, eliminating the need for traditional phase shifters and…

Hybrid analog/digital beamforming is a promising technique to realize millimeter wave (mmWave) massive multiple-input multiple-output (MIMO) systems cost-effectively. However, existing hybrid beamforming designs mainly rely on real-time…

信息论 · 计算机科学 2022-06-20 Di Wu , Yong Zeng , Shi Jin , Rui Zhang

Cell-free massive MIMO systems consist of many distributed access points with simple components that jointly serve the users. In millimeter wave bands, only a limited set of predetermined beams can be supported. In a network that…

信息论 · 计算机科学 2021-07-05 Cenk M. Yetis , Emil Björnson , Pontus Giselsson

Large antenna arrays can be used to generate highly focused beams that support very high data rates and reduced energy consumption. However, optimal beam focusing requires large amount of feedback from the users in order to choose the best…

信息论 · 计算机科学 2015-10-06 Abdoulaye Tall , Zwi Altman , Eitan Altman

At millimeter wave (mmW) frequencies, beamforming and large antenna arrays are an essential requirement to combat the high path loss for mmW communication. Moreover, at these frequencies, very large bandwidths are available to fulfill the…

信息论 · 计算机科学 2016-04-19 Waqas Bin Abbas , Michele Zorzi

In this work, we present a framework analysis of full-duplex (FD) systems for Millimeter Wave (mmWave) analog architecture. Given that FD systems can double the ergodic capacity, such systems experience large losses caused by the loopback…

信号处理 · 电气工程与系统科学 2020-12-17 Elyes Balti

In this paper, a novel full-duplex non-coherent (FD-NC) transmission scheme is developed for massive multiple-input multiple-output (mMIMO) systems using analog beamforming (ABF). We propose to use a structured Grassmannian constellation…

信息论 · 计算机科学 2022-02-01 Asil Koc , Ahmed Masmoudi , Tho Le-Ngoc

Millimeter wave (mmWave) spectrum has drawn attention due to its tremendous available bandwidth. The high propagation losses in the mmWave bands necessitate beamforming with a large number of antennas. Traditionally each antenna is paired…

信息论 · 计算机科学 2018-05-31 Junmo Sung , Jinseok Choi , Brian L. Evans

This paper presents a novel RF circuit architecture for self-interference cancellation in inband full-duplex radio transceivers. The developed canceller is able to provide wideband cancellation with waveform bandwidths in the order of 100…

信息论 · 计算机科学 2016-11-17 Timo Huusari , Yang-Seok Choi , Petteri Liikkanen , Dani Korpi , Shilpa Talwar , Mikko Valkama

Millimeter-wave MIMO systems have gained increasing traction towards the goal of meeting the high data-rate requirements in next-generation wireless systems. The focus of this work is on low-complexity beamforming approaches for initial UE…

信息论 · 计算机科学 2016-05-04 Vasanthan Raghavan , Juergen Cezanne , Sundar Subramanian , Ashwin Sampath , Ozge Koymen

Beamforming structures with fixed beam codebooks provide economical solutions for millimeter wave (mmWave) communications due to the low hardware cost. However, the training overhead to search for the optimal beamforming configuration is…

信息论 · 计算机科学 2019-12-30 Ruichen Deng , Sheng Chen , Sheng Zhou , Zhisheng Niu , Wei Zhang

Millimeter wave (mmWave) communications have been considered as a key technology for next generation cellular systems and Wi-Fi networks because of its advances in providing orders-of-magnitude wider bandwidth than current wireless…

信息论 · 计算机科学 2018-07-04 Zihuan Wang , Ming Li , Qian Liu , A. Lee Swindlehurst

Beamforming is a signal processing technique where an array of antenna elements can be steered to transmit and receive radio signals in a specific direction. The usage of millimeter wave (mmWave) frequencies and multiple input multiple…

Millimeter-Wave (mm-Wave) frequency bands provide an opportunity for much wider channel bandwidth compared with the traditional sub-6 GHz band. Communication at mm-Waves is, however, quite challenging due to the severe propagation path…

信息论 · 计算机科学 2017-10-19 Xiaoshen Song , Saeid Haghighatshoar , Giuseppe Caire

In this paper we carry out the asymptotic diversity analysis for millimeter-wave (mmWave) massive multiple-input multiple-output (MIMO) systems by using bit interleaved coded multiple beamforming (BICMB). First, a single-user mmWave system…

信息论 · 计算机科学 2019-03-15 Sadjad Sedighi , Ender Ayanoglu

Millimeter wave (mmWave) is a key technology for fifth-generation (5G) and beyond communications. Hybrid beamforming has been proposed for large-scale antenna systems in mmWave communications. Existing hybrid beamforming designs based on…

信号处理 · 电气工程与系统科学 2022-02-07 Chia-Ho Kuo , Hsin-Yuan Chang , Ronald Y. Chang , Wei-Ho Chung

We provide a comprehensive overview of mathematical models and analytical techniques for millimeter wave (mmWave) cellular systems. The two fundamental physical differences from conventional Sub-6GHz cellular systems are (i) vulnerability…

Beam codebooks are a recent feature to enable high dimension multiple-input multiple-output in 5G. Codebooks comprised of customizable beamforming weights can be used to transmit reference signals and aid the channel state information (CSI)…

信号处理 · 电气工程与系统科学 2023-05-17 Ryan M. Dreifuerst , Robert W. Heath

We propose a beam codebook design for integrated sensing and communication (ISAC) that reduces self-interference (SI) to alleviate analog distortion. Our optimization framework, which considers either tapered beamforming or phased arrays…

信号处理 · 电气工程与系统科学 2025-11-04 Rodrigo Hernangómez , Jochen Fink , Renato L. G. Cavalcante , Sławomir Stańczak

Fifth generation wireless systems are expected to employ multiple antenna communication at millimeter wave (mmWave) frequencies using small cells within heterogeneous cellular networks. The high path loss of mmWave as well as physical…

信息论 · 计算机科学 2015-05-19 Jiho Song , Junil Choi , Stephen G. Larew , David J. Love , Timothy A. Thomas , Amitava Ghosh