Results 21 to 30 of about 100,223 (210)

Low-Power MIMO Guided-Wave Communication [PDF]

open access: yesIEEE Access, 2020
This article demonstrates the use of guided elastic waves (GEW) for multiple-in and multiple-out (MIMO) data communication in the framework of a structural health monitoring (SHM) system. Therefore, miniaturized low-voltage communication nodes have been developed. They are arranged in a spatially distributed and permanently installed network.
Christian Kexel   +4 more
openaire   +5 more sources

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

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

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

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

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

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

Massive MIMO for Internet of Things (IoT) Connectivity

open access: yes, 2019
Massive MIMO is considered to be one of the key technologies in the emerging 5G systems, but also a concept applicable to other wireless systems. Exploiting the large number of degrees of freedom (DoFs) of massive MIMO essential for achieving high ...
Abrão, Taufik   +6 more
core   +1 more source

Capacity evaluation of LoS-optimised and standard MIMO antenna arrays at 5.2 GHz [PDF]

open access: yes, 2007
In this paper, the channel capacity of MIMO communication systems is evaluated from measurements in a home environment at 5.2 GHz. The capacity performance of a novel line-of-sight (LoS)-optimised antenna array architecture is investigated and compared ...
Nix, AR, Sarris, I
core   +2 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

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