Results 11 to 20 of about 1,035 (180)

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

Adv Sci (Weinh)
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.
Cheng J, Yang D, Wang W, Xu C, Fan Z, Sun D.   +5 more
europepmc   +2 more sources

Energy efficiency of cooperative D2D communications underlaying LTE-A networks

MATEC Web of Conferences, 2018
Device-to-device (D2D) communications underlaying LTE-A networks is expected to bring significant benefits for resource utilization and energy efficiency (EE) improvement of user equipment (UE). However, the allocation of radio and power resources to D2D
Zhang Xiaoying, Khwaja Ahmed, Naeem Muhammad, Anpalagan Alagan   +3 more
doaj   +1 more source

QoE-Aware Device-to-Device Multimedia Communications

EAI Endorsed Transactions on Creative Technologies, 2015
Multimedia services over mobile device-to-device (D2D) networks has recently received considerable attention. In this scenario, each device is equipped with a cellular communication interface, as well as a D2D interface over a shared medium. In this work,
Liang ZHOU
doaj   +1 more source

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

IEEE 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

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

Algorithms, 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

A Practical Resource Management Scheme for Cellular Underlaid D2D Networks

Future Internet, 2017
In this paper, we investigate a resource management scheme for cellular underlaid device-to-device (D2D) communications, which are an integral part of mobile caching networks.
Tae-Won Ban
doaj   +1 more source

Recent Advances on Cellular D2D Communications

Future Internet, 2018
Device-to-device (D2D) communications have attracted a great deal of attention fromresearchers in recent years.[...]
Boon-Chong Seet, Syed Faraz Hasan, Peter Han-Joo Chong   +2 more
doaj   +1 more source

On the throughput gain of device-to-device communications

ICT Express, 2015
In an uplink underlaid device-to-device (D2D) cellular network, this paper considers its two aspects of throughput improvement. The two-fold gain comprises the throughput increase by offloading downlink cellular traffic to D2D communications, duplexing ...
YoungJu Hwang, Jihong Park, Ki Won Sung, Seong-Lyun Kim   +3 more
doaj   +1 more source

Low Latency Device to Device Communications for Sustainable Development [PDF]

ITM Web of Conferences
The 5G device to device (D2D) communication is being given impetus as technology for achieving sustainable development goals (SDG) in various fields like health, smart city, education, infrastructure and clean energy.
Makhija Deven, Bera Rabindranath, Dhar Sourav   +2 more
doaj   +1 more source

Energy-Efficient Power Allocation and Relay Selection Schemes for Relay-Assisted D2D Communications in 5G Wireless Networks

Sensors, 2018
Device-to-device (D2D) communications allows user equipment (UE) that are in close proximity to communicate with each other directly without using a base station.
Md Arifur Rahman, YoungDoo Lee, Insoo Koo   +2 more
doaj   +1 more source