Results 21 to 30 of about 1,266 (177)

Flow Sensing-Based Congestion Detection for D2D Streaming on a 5G gNB

open access: yesSensors, 2021
To provide high-quality streaming services in device-to-device (D2D) communications, performance parameters such as encoding rate, decoding rate, and flow rate should be detected and monitored.
Chongdeuk Lee
doaj   +1 more source

Modeling D2D communications with LTE and WiFi [PDF]

open access: yesACM SIGMETRICS Performance Evaluation Review, 2014
In this work we propose a roadmap towards the analytical understanding of Device-to-Device (D2D) communications in LTE-A networks. Various D2D solutions have been proposed, which include inband and outband D2D transmission modes, each of which exhibits different pros and cons in terms of complexity, interference, and spectral efficiency achieved. We go
Arash Asadi   +2 more
openaire   +2 more sources

Power Control for Full-Duplex D2D Communications Underlaying Cellular Networks

open access: yesIEEE Access, 2019
As two promising candidate techniques for the 5G mobile communication system, device-to-device (D2D) communications and full-duplex communications have drawn significant research interests.
Liang Han   +3 more
doaj   +1 more source

Towards Human-Aware D2D Communication [PDF]

open access: yes2020 16th International Conference on Distributed Computing in Sensor Systems (DCOSS), 2020
Mobility, social interactions, and other human characteristics shall support Future Mobile Networks in routine prediction and resource management. This work investigates human-aware metrics supporting services or protocols leveraging opportunistic communication.
Lima Costa, Rafael   +3 more
openaire   +2 more sources

Towards Energy-Efficient Underlaid Device-to-Device Communications: A Joint Resource Management Approach

open access: yesIEEE Access, 2019
With increasing demands of green wireless communications, energy-efficient device-to-device (D2D) communications have attracted increasing attention. However, with resource sharing in an underlying manner, the system performance may be greatly degraded ...
Rui Zhang   +5 more
doaj   +1 more source

Power Allocation for Maximizing Uplink Rate Over Full-Duplex Relay-Based D2D Communication Underlying Cellular Networks

open access: yesIEEE Access, 2018
Device-to-device (D2D) communications, which can increase system throughput, allow two cellular devices to communicate directly with each other. Compared with half-duplex relay, full-duplex relay can significantly improve the spectrum efficiency if the ...
Ruirui Chen, Yanjing Sun, Tao Li
doaj   +1 more source

Spectral and Energy Efficiency Analysis of mmWave Communications With Channel Inversion in Outband D2D Network

open access: yesIEEE Access, 2018
Device-to-device (D2D) communications is a promising approach for wireless communications in terms of energy and spectrum efficiency. However, such communications increase interferences in a cellular network.
Romain Chevillon   +3 more
doaj   +1 more source

Efficiency Intra-Cluster Device-to-Device Relay Selection for Multicast Services Based on Combinatorial Auction

open access: yesAlgorithms, 2015
In Long Term Evolution-Advanced (LTE-A) networks, Device-to-device (D2D) communications can be utilized to enhance the performance of multicast services by leveraging D2D relays to serve nodes with worse channel conditions within a cluster.
Yong Zhang, Fangmin Li
doaj   +1 more source

D2D Assisted Cellular Networks in Licensed and Unlicensed Spectrum: Matching-Iteration-Based Joint User Access and Resource Allocation

open access: yesAlgorithms, 2021
Device-to-Device (D2D) communications, which enable direct communication between nearby user devices over the licensed spectrum, have been considered a key technique to improve spectral efficiency and system throughput in cellular networks (CNs). However,
Qiuqi Han, Guangyuan Zheng, Chen Xu
doaj   +1 more source

Sub‐Terahertz Memristor Switches Using MoS2 by Liquid–Liquid Interface Assembly

open access: yesAdvanced Science, EarlyView.
This work introduces application‐ready sub‐terahertz memristor switches fabricated from electrochemically exfoliated MoS2 nanosheets assembled at a liquid–liquid interface. The devices exhibit robust unipolar resistive switching, low insertion loss, and high isolation across 10–110 GHz.
Tomás Mingates   +15 more
wiley   +1 more source

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