Results 71 to 80 of about 1,722,156 (269)

HYBRID BEAMFORMING FOR SINGLE CARRIER MMWAVE MIMO SYSTEMS [PDF]

2018 IEEE Global Conference on Signal and Information Processing (GlobalSIP), 2018
Hybrid analog and digital beamforming (HBF) has been recognized as an attractive technique offering a tradeoff between hardware implementation limitation and system performance for future broadband millimeter wave (mmWave) communications. In contrast to most current works focusing on the HBF design for orthogonal frequency division multiplexing based ...
Lin, Tian, Cong, Jiaqi, Zhu, Yu
openaire   +2 more sources

Wearable and Implantable Devices for Continuous Monitoring of Muscle Physiological Activity: A Review

Advanced Science, EarlyView.
Recent advances in materials and device engineering enable continuous, real‐time monitoring of muscle activity via wearable and implantable systems. This review critically summarizes emerging technologies for tracking electrophysiological, biomechanical, and oxygenation signals, outlines fundamental principles, and highlights key challenges and ...
Zhengwei Liao, Ata Golparvar, Mohammad Javad Bathaei, Filipe Arroyo Cardoso, Clementine M. Boutry   +4 more
wiley   +1 more source

Low Complexity and Robust Codebook-Based Analog Beamforming for Millimeter Wave MIMO Systems

IEEE Access, 2017
Millimeter-wave (mm-Wave) MIMO systems have been proposed to achieve higher spectral efficiency via the hybrid beamforming structure, which consists of analog beamforming and digital beamforming.
Yong Niu, Ziqi Feng, Min Chen, Yong Li, Zhangdui Zhong, Bo Ai   +5 more
doaj   +1 more source

Directional modulation design for multi-beam multiplexing based on hybrid antenna array structures

EURASIP Journal on Advances in Signal Processing, 2023
For integrated sensing and communication, one important research direction is to employ various beamforming techniques to avoid interference between the two functions.
Maolin Li, Bo Zhang, Baoju Zhang, Wei Liu, Taekon Kim, Cheng Wang   +5 more
doaj   +1 more source

Signal Processing for MIMO-NOMA: Present and Future Challenges

, 2018
Non-orthogonal multiple access (NOMA), as the newest member of the multiple access family, is envisioned to be an essential component of 5G mobile networks. The combination of NOMA and multi-antenna multi-input multi-output (MIMO) technologies exhibits a
Huang, Yongming, Jing, Yindi, Wang, Jiaheng, Yang, Luxi, You, Xiaohu, Zhang, Cheng   +5 more
core   +1 more source

Location‐Assisted Graph‐Based User Scheduling in Multi‐User MIMO LEO NTN Systems

International Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT This paper addresses user clustering and scheduling for multi‐user MIMO low Earth orbit nonterrestrial network systems in full frequency reuse. Since the number of on‐ground user terminals is usually much higher than the number of on‐board LEO satellite antennas, user scheduling becomes a fundamental task.
Bilal Ahmad, Daniel Gaetano Riviello, Bruno De Filippo, Alessandro Guidotti, Alessandro Vanelli‐Coralli   +4 more
wiley   +1 more source

A Review on Millimeter-Wave Hybrid Beamforming for Wireless Intelligent Transport Systems

Future Internet
As the world braces for an era of ubiquitous and seamless connectivity, hybrid beamforming stands out as a beacon guiding the evolutionary path of wireless communication technologies.
Waleed Shahjehan, Rajkumar Singh Rathore, Syed Waqar Shah, Mohammad Aljaidi, Ali Safaa Sadiq, Omprakash Kaiwartya   +5 more
doaj   +1 more source

Joint User Scheduling and MU-MIMO Hybrid Beamforming Algorithm for mmWave FDMA Massive MIMO System

International Journal of Antennas and Propagation, 2016
The large bandwidth and multipath in millimeter wave (mmWave) cellular system assure the existence of frequency selective channels; it is necessary that mmWave system remains with frequency division multiple access (FDMA) and user scheduling. But for the
Jing Jiang, Deting Kong
doaj   +1 more source

A low complexity hybrid combiner design for the ill‐conditioned multiuser mmWave massive MIMO uplink

IET Communications, 2021
This paper presents a simple and robust hybrid combiner for the multiuser massive multiple‐input multiple‐output (MIMO) uplink. The hybrid beamforming is used in massive MIMO systems to reduce the number of radio frequency chains.
Irfan Ahmed, Hedi Khammari, Fahad Alraddady   +2 more
doaj   +1 more source

QoS-Aware Hybrid Beamforming With Minimal Power in mmWave Massive MIMO Systems

IEEE Access, 2021
Hybrid beamforming is used to leverage the benefits of both massive multiple input and multiple output (MIMO) systems and millimeter waves for significantly increasing the capacity of wireless networks. Existing schemes for hybrid beamforming in multiple
Mohsen Tajallifar, Ahmad R. Sharafat, Halim Yanikomeroglu   +2 more
doaj   +1 more source