Results 61 to 70 of about 100,223 (210)

Detection of stationary humans using time-division UWB MIMO through-wall radar

open access: yesThe Journal of Engineering, 2019
Existing radars for stationary human detection need to process echo data from all channels simultaneously, which requires the radar system with high performance.
Sun Xinxin, Jin Liangnian, Liu Qinghua
doaj   +1 more source

Channel Estimation for Diffusive MIMO Molecular Communications

open access: yes, 2017
In diffusion-based communication, as for molecular systems, the achievable data rate is very low due to the slow nature of diffusion and the existence of severe inter-symbol interference (ISI).
Rouzegar, S. Mohammadreza   +1 more
core   +1 more source

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

open access: yesInternational 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   +4 more
wiley   +1 more source

Key Technologies in Massive MIMO

open access: yesITM Web of Conferences, 2018
The explosive growth of wireless data traffic in the future fifth generation mobile communication system (5G) has led researchers to develop new disruptive technologies. As an extension of traditional MIMO technology, massive MIMO can greatly improve the
Hu Qiang, Zhang Meixiang, Gao Renzheng
doaj   +1 more source

MIMO Networks: the Effects of Interference

open access: yes, 2009
Multiple-input/multiple-output (MIMO) systems promise enormous capacity increase and are being considered as one of the key technologies for future wireless networks.
Chiani, Marco   +2 more
core   +1 more source

Beyond 5G and Non‐terrestrial Network (NTN) Integrated Architecture: Access Challenges for Expanding Artificial Intelligence of Things (AIoT)

open access: yesInternational Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT This study analyzes the architecture of the beyond 5G‐NTN (Non‐terrestrial Network) integrated network and presents the technical, legal, and regulatory challenges and considerations for expanding the Artificial Intelligence of Things (AIoT) ecosystem.
Byung Woon Kim, Ga Eun Choi
wiley   +1 more source

Transceiver Design for an FDA-MIMO Radar and MIMO Communication Spectral Coexistence System

open access: yesLeida xuebao
When radar and communication systems share the same frequency spectrum on the same platform, mutual interference may occur. In addition, mainlobe deceptive interferences pose a serious threat to radar target detection.
Qihang XU   +4 more
doaj   +1 more source

Improved high-precision approach based on deconvolution in MIMO sonar imagery

open access: yesThe Journal of Engineering, 2019
Multiple-input multiple-output (MIMO) sonar enables high-resolution imaging, which is extremely useful in underwater acoustic high-precision imagery.
Lu Yan, Shengchun Piao, Feng Xu
doaj   +1 more source

Surface MIMO: Using Conductive Surfaces For MIMO Between Small Devices

open access: yes, 2018
As connected devices continue to decrease in size, we explore the idea of leveraging everyday surfaces such as tabletops and walls to augment the wireless capabilities of devices.
Griffiths D. J.   +7 more
core   +1 more source

Integrated LEO Constellation and In‐Cabin Distribution System for Continuous Aircraft 5G Connectivity

open access: yesInternational Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT The integration of low Earth orbit (LEO) satellite constellations with commercial aircraft communication systems presents critical challenges in maintaining continuous connectivity during dynamic flight conditions. Current geostationary satellite systems suffer from high round‐trip latency (>$$ > $$ 500 ms) and inadequate coverage at high ...
Raúl Parada   +4 more
wiley   +1 more source

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