Results 21 to 30 of about 5,733 (189)

Advances in MIMO Antenna Design for 5G: A Comprehensive Review

open access: yesSensors, 2023
Multiple-input multiple-output (MIMO) technology has emerged as a highly promising solution for wireless communication, offering an opportunity to overcome the limitations of traffic capacity in high-speed broadband wireless network access.
Tej Raj   +3 more
doaj   +1 more source

Capacity of Magnetic-Induction MIMO Communication for Wireless Underground Sensor Networks

open access: yesInternational Journal of Distributed Sensor Networks, 2015
In underground sensor networks, electronic magnetic waves undergo severe fading due to the challenging environment. Magnetic-induction (MI) communication is a promising alternative physical layer technique for underground sensor networks.
Song Li, Yanjing Sun, Wenjuan Shi
doaj   +1 more source

Error Characterization of Differential Detection and Non-Differential Detection for MIMO UWOC Systems in Seawater Turbulent Channels

open access: yesPhotonics, 2023
Ocean turbulence is an important factor affecting the development of underwater wireless optical communication (UWOC). To improve the error characteristics of the underwater optical communication system, we propose a differential detection-based multi ...
Tong Wang   +3 more
doaj   +1 more source

Massive MIMO for Communications With Drone Swarms

open access: yesIEEE Transactions on Wireless Communications, 2018
We illustrate the potential of massive MIMO for communication with unmanned aerial vehicles (UAVs). We consider a scenario where multiple single-antenna UAVs simultaneously communicate with a ground station (GS) equipped with a large number of antennas.
Prabhu Chandhar   +2 more
openaire   +4 more sources

Angular Circle Array Multiple Input Multiple Output Underwater Optical Wireless Communications

open access: yesPhotonics
This paper constructs a simulation platform for underwater wireless optical single-input single-output (SISO) communication systems and quantitatively evaluates communication performance indicators.
Zhuoqi Chen   +3 more
doaj   +1 more source

Modeling and Performance Analysis of Energy Efficiency Binary Power Control in MIMO-OFDM Wireless Communication Systems

open access: yesInternational Journal of Distributed Sensor Networks, 2011
The energy efficiency optimization of the binary power control scheme for MIMO-OFDM wireless communication systems is formulated, and then a global optimization solution of power allocation is derived.
Yuming Wang   +4 more
doaj   +1 more source

Spectral Efficiency Improvement and Power Control Optimization of Massive MIMO Networks

open access: yesIEEE Access, 2021
Higher requirements must be put forward about wireless signal transmission in harsh environments. Energy loss mitigation, channel estimation, noise interference reduction demands high quality of service in wireless communication.
Xiu Zhang, Hao Qi, Xin Zhang, Liang Han
doaj   +1 more source

A Survey of Collocated MIMO Radar

open access: yesLeida xuebao, 2022
As a novel radar system, the Multiple-Input Multiple-Output (MIMO) radar with waveform diversity has demonstrated excellent performance in several aspects, including target detection, parameter estimation, radio frequency stealth, and anti-jamming ...
Zishu HE   +6 more
doaj   +1 more source

Fundamental Challenges, Physical Implementations, and Integration Strategies for Ising Machines in Large‐Scale Optimization Tasks

open access: yesAdvanced Electronic Materials, EarlyView.
Ising machines are emerging as specialized hardware solvers for computationally hard optimization problems. This review examines five major platforms—digital CMOS, analog CMOS, emerging devices, coherent optics, and quantum systems—highlighting physics‐rooted advantages and shared bottlenecks in scalability and connectivity.
Hyunjun Lee, Joon Pyo Kim, Sanghyeon Kim
wiley   +1 more source

Toward Complex In‐Car Environment Human–Vehicle Interactions Through Smart Glasses and sEMG‐Based Gesture Recognition

open access: yesAdvanced Intelligent Systems, EarlyView.
This study proposes a novel weighted random forest multimodal fusion method that combines smart glasses and sEMG data for in‐vehicle gesture interaction. It realizes stable performance in dim, occluded, and other constrained scenarios, providing feasible solutions and laying a foundation for universal human–machine interaction.
Wenbo Zhang   +8 more
wiley   +1 more source

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