Results 31 to 40 of about 5,515,542 (307)

IBP Based Caching Strategy in D2D

open access: yesApplied Sciences, 2019
Device to Device (D2D) communication is a key technology in 5th generation wireless systems to increase communication capacity and spectral efficiency. Applying caching into D2D communication networks, the device can retrieve content from other devices ...
Chun Shan   +4 more
doaj   +1 more source

Energy-Efficient Device Discovery Mechanism for Device-to-Device Communications in 5G Networks

open access: yesEnergies, 2021
The conventional direct device discovery scheme which uses the random access protocol and encounters contentions or collisions is highly energy and time-consuming.
Mingfu Li, Hsin-Ling Tsai
doaj   +1 more source

Interference constrained device-to-device communications [PDF]

open access: yes2014 IEEE International Conference on Communications (ICC), 2014
This paper considers a scenario in which multiple device-to-device (D2D) users can reuse the uplink resources of a cellular network to transmit directly to their corresponding receivers. The aggregated interference from the D2D users is limited by applying a threshold on the allowable interference in the base station.
Serveh Shalmashi   +3 more
openaire   +1 more source

Numerical investigation of graphene derivatives as HTL in PBDB-T:NCBDT bulk heterojunction organic solar cell

open access: yesResults in Optics
The damaging effects of the most widely used PEDOT:PSS have led researchers to search for an alternative hole transport layer (HTL) in non-fullerene acceptor (NFA) based bulk heterojunction organic solar cells (BHJOSC’s).
Denet Davis, K.S. Sudheer
doaj   +1 more source

On ASER Analysis of Energy Efficient Modulation Schemes for a Device-to-Device MIMO Relay Network

open access: yesIEEE Access, 2020
In this paper, we investigate the performance of a device-to-device (D2D) multiple-input and multiple-output (MIMO) communications using an amplify-and-forward relaying for various energy-efficient modulation schemes.
Shaik Parvez   +2 more
doaj   +1 more source

Emergency Communications Based on Throughput-Aware D2D Multicasting in 5G Public Safety Networks

open access: yesSensors, 2020
Emergency communications need to meet the developing demand of equipment and the complex scenarios of network in public safety networks (PSNs). Heterogeneous Cloud Radio Access Network (H-CRAN), an important technology of the 5th generation wireless ...
Mengjun Yin   +4 more
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

Interference-aware distributed device-to-device caching

open access: yes2017 IEEE International Black Sea Conference on Communications and Networking (BlackSeaCom), 2017
In this paper, cache placement problem in cellular networks with device to device communications (D2D) is addressed. D2D transmission allows cellular bandwidth reuse which necessitates interference management. We propose a distributed algorithm, where the base station rewards the user terminals for caching content and helping other nearby terminals ...
Kazez, Ahmet Cihat, Girici, Tolga
openaire   +2 more sources

Performance Analysis of Unsupervised LTE Device-to-Device (D2D) Communication

open access: yes, 2018
Cellular network technology based device-to-device communication attracts increasing attention for use cases such as the control of autonomous vehicles on the ground and in the air.
Eckermann, Fabian   +2 more
core   +1 more source

Active/robotic capsule endoscopy - A review

open access: yesAlexandria Engineering Journal
Capsule endoscopy represents an appealing alternative to conventional endoscopic procedures that cause discomfort to the patient and are considered tedious to the operator due to difficulty of endoscope manipulation because of the limited degrees of ...
Yasmin Khattab, Peter P. Pott
doaj   +1 more source

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