Results 21 to 30 of about 3,718 (189)

Outage Performance Improvement by Selected User in D2D Transmission and Implementation of Cognitive Radio-Assisted NOMA

open access: yesSensors, 2019
In this paper, we investigate the outage performance in secondary network of cognitive radio (CR) employing non-orthogonal multiple access (NOMA) wireless networks over Rayleigh fading channels.
Dinh-Thuan Do   +2 more
doaj   +1 more source

Generalized Imperfect D2D Associations in Spectrum-Shared Cellular Networks Under Transmit Power and Interference Constraints

open access: yesIEEE Access, 2020
This paper studies imperfect underlay device-to-device (D2D) association in spectrum-shared cellular networks. It addresses important system and design interference constraints, processing load limitations and transmit power constraints at D2D terminals.
Redha M. Radaydeh   +4 more
doaj   +1 more source

Percolation for D2D networks on street systems [PDF]

open access: yes2018 16th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks (WiOpt), 2018
6 pages, 7 figures, 1 ...
Cali, Elie   +5 more
openaire   +5 more sources

On the Hopping Pattern Design for D2D Discovery [PDF]

open access: yes2014 IEEE 80th Vehicular Technology Conference (VTC2014-Fall), 2014
The hopping pattern for D2D Discovery are investi- gated. We propose three metrics for hopping pattern performance evaluation: column period, maximal collision ratio, maximal con- tinual collision number. A class of hopping patterns is constructed based on the metrics, and through simulation the patterns show better discovery performance.
Qizhi Zhang 0005, Deping Liu
openaire   +2 more sources

Proactive Hybrid Half and Joint D2D Handover Scheme in Multi-access Mobile Edge Computing (MEC)

open access: yesJournal of Communications Software and Systems
Reducing the pressure in the core network is the major concern for future mobile networks. Device to Device (D2D) communication is one of the innovative techniques in 5G networks that allows direct communication between nearby devices without relying on ...
Muayad Khalil Murtadha   +1 more
doaj   +1 more source

Joint Resource Allocation Scheme for Device-To-Device Communication under a Cellular Network

open access: yesCybernetics and Information Technologies, 2015
Device-To-Device (D2D) communication is a new technology that allows the mobile terminals to directly communicate with each other by sharing the resources of the cellular network under the control of a cellular system.
Feng Chenwei, Chen Pingbo, Zhang Zewang
doaj   +1 more source

Pilot Reuse Among D2D Users in D2D Underlaid Massive MIMO Systems [PDF]

open access: yesIEEE Transactions on Vehicular Technology, 2018
15 pages, 9 figures, to appear in IEEE Transactions on Vehicular ...
Hao Xu 0003   +4 more
openaire   +2 more sources

Using d2d for Writing XML

open access: yesJournal of the Text Encoding Initiative
The textual structures of notes and publications in music theory and musical analysis bring challenging requirements: how to include music notation excerpts, graphics, and even combinations thereof into the typeset flow of paragraphs and the workflow ...
Markus Lepper   +1 more
doaj   +1 more source

State-of-the-Art Device-to-Device Communication Solutions

open access: yesIEEE Access, 2023
In recent years, with the spread of IoT services and the amount of data on the network, the importance of D2D communications has emerged in unloading the network, reducing data access time, and improving performance.
Manal A. Areqi   +2 more
doaj   +1 more source

OFDMA-Based Device-to-Device Communication Frameworks: Testbed Deployment and Measurement Results

open access: yesIEEE Access, 2018
Device-to-device (D2D) communication exploits the proximity between two devices to enhance the overall spectrum utilization of a crowded cellular network. Two conventional frameworks that are generally used to realize a D2D communication are underlay D2D
Siddharth Sharma   +2 more
doaj   +1 more source

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