Results 41 to 50 of about 13,462 (229)

Capacity Enhancement in D2D 5G Emerging Networks: A Survey

open access: yesJournal of Applied Engineering and Technological Science, 2023
Several efforts are being made to improve the capacity of 5G networks using emerging technologies of interest. One of the indispensable technologies to fulfill the need is device-to-device (D2D) communication with its untapped associated benefits ...
Anthon Ejeh Itodo, Theo G. Swart
doaj   +1 more source

Device-to-Device Communications Enabled Energy Efficient Multicast Scheduling in mmWave Small Cells

open access: yes, 2017
To keep pace with the rapid growth of mobile traffic demands, dense deployment of small cells in millimeter wave (mmWave) bands has become a promising candidate for next generation wireless communication systems.
Chen, Xinlei   +5 more
core   +1 more source

Underlay of low-rate machine-type D2D links on downlink cellular links [PDF]

open access: yes, 2014
Wireless cellular networks feature two emerging technological trends: direct Device-to-Device (D2D) communications and Machine-Type Communications (MTC).
Popovski, Petar, Pratas, Nuno K.
core   +2 more sources

Power control for full-duplex D2D communications underlaying cellular networks

open access: yesDianxin kexue, 2017
Device-to-device (D2D) communications that based on the wireless full-duplex transmission mode can not only reuse the cellular users' spectrum resource, but also significantly improve the spectral efficiency and the system throughout in wireless cellular
Jihong ZHAO   +3 more
doaj   +2 more sources

Coverage and capacity analysis of relay-based device-to-device communications underlaid cellular networks

open access: yesEngineering Science and Technology, an International Journal, 2018
Coverage and capacity are the key parameters of 4G and beyond wireless networks. These parameters of Long Term Evolution Advanced (LTE-A) networks can be greatly enhanced by enabling device-to-device (D2D) communication.
Indrasen Singh, Niraj Pratap Singh
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

Assisting V2V failure recovery using Device-to-Device Communications

open access: yes, 2015
This paper aims to propose a new solution for failure recovery (dead-ends) in Vehicle to Vehicle (V2V) communications through LTE-assisted Device-to-Device communications (D2D).
Abd-Elrahman, Emad   +4 more
core   +1 more source

Direct Photocurrent Detection of Optical Vortex Based on the Orbital Photo Galvanic Effect: Progress, Challenge, and Perspective

open access: yesAdvanced Science, EarlyView.
Direct orbital angular momentum (OAM) detection through the orbital photogalvanic effect offers a scalable route for integrated optoelectronics. This perspective evaluates symmetry‐driven material selection and demonstrates how electrode matrices enable the resolution of complex, mixed OAM modes.
Jinluo Cheng   +5 more
wiley   +1 more source

An Overview of Device-to-Device Communications Technology Components in METIS

open access: yesIEEE Access, 2016
As the standardization of network-assisted device-to-device (D2D) communications by the Third Generation Partnership Project progresses, the research community has started to explore the technology potential of new advanced features that will largely ...
Gabor Fodor   +7 more
doaj   +1 more source

Resource Allocation for Energy-Efficient Device-to-Device Communication in 4G Networks

open access: yes, 2014
Device-to-device (D2D) communications as an underlay of a LTE-A (4G) network can reduce the traffic load as well as power consumption in cellular networks by way of utilizing peer-to-peer links for users in proximity of each other.
Alamouti, Sajjad Mehri   +1 more
core   +1 more source

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