Results 31 to 40 of about 109,418 (318)

Energy Efficiency and Spectral Efficiency Tradeoff in Massive MIMO Multicast Transmission with Statistical CSI

Entropy, 2020
As the core technology of 5G mobile communication systems, massive multi-input multi-output (MIMO) can dramatically enhance the energy efficiency (EE), as well as the spectral efficiency (SE), which meets the requirements of new applications.
Bin Jiang, Bowen Ren, Yufei Huang, Tingting Chen, Li You, Wenjin Wang   +5 more
doaj   +1 more source

Energy Efficiency Optimization in Massive MIMO Secure Multicast Transmission

Entropy, 2020
Herein, we focus on energy efficiency optimization for massive multiple-input multiple-output (MIMO) downlink secure multicast transmission exploiting statistical channel state information (CSI). Privacy engineering in the field of communication is a hot
Bin Jiang, Linbo Qu, Yufei Huang, Yifei Zheng, Li You, Wenjin Wang   +5 more
doaj   +1 more source

Reconfigurable mobile communications: compelling needs and technologies to support reconfigurable terminals [PDF]

, 2000
To date, research into reconfigurable mobile communications has predominantly focussed on the software radio concept, and specifically on the hardware technologies required to move physical layer processing into a programmable environment.
Mangold, P, Drew, NJ, Williams, DJ, Farnham, T, Dillinger, M, Farnham, Tim, Beach, MA, Williams, D   +7 more
core   +1 more source

Scheduled Communications in Next Generation Mobile Networks

, 2018
5G, as the next phase of mobile communications standards, intends to offer connectivity with greater throughput, higher capacity, lower latency and higher mobility range.
Miloud Bagaa, Tarik Taleb, Naas, Si-Ahmed, Si-Ahmed Naas, Taleb, Tarik, Bagaa, Miloud   +5 more
core   +1 more source

Why young consumers are not open to mobile marketing communications

, 2007
This paper explores young people's motivations for using mobile phones. Older adolescents' everyday use of traditional and new forms of mediated communication were explored in the context of their everyday lives, with data generated from self-completion ...
Grant, Ian, O'Donohoe, Stephanie, Stephanie O’Donohoe, Grant, I., Ian Grant, O'Donohoe, S.   +5 more
core   +1 more source

Enhanced Terahertz Thermoelectricity Via Engineered Van Hove Singularities and Nernst Effect in Moiré Superlattices

Advanced Functional Materials, EarlyView.
Moiré band engineering in graphene/hexagonal boron nitride–based superlattices unlocks van Hove singularities (VHSs) for terahertz (THz) optoelectronics. Tuning the Fermi level near these singularities, associated with secondary neutrality points (SNPs), enhances the photothermoelectric response.
Leonid Elesin, Arthur L. Shilov, Subhajit Jana, Ilya Mazurenko, Pierre A. Pantaleon, Mikhail Kashchenko, Nikita Krivovichev, Viacheslav Dremov, Igor Gayduchenko, Takashi Taniguchi, Kenji Watanabe, Yibo Wang, Kostya S. Novoselov, Dmitry A. Svintsov, Grigory Goltsman, Elena I. Titova, Denis A. Bandurin   +16 more
wiley   +1 more source

A multi-dimensional hierarchical evaluation system for data quality in trustworthy AI

Journal of Big Data
Recently, the widespread adoption of artificial intelligence (AI) has given rise to a significant trust crisis, stemming from the persistent emergence of issues in practical applications.
Hui-Juan Zhang, Can-Can Chen, Peng Ran, Kai Yang, Quan-Chao Liu, Zhe-Yuan Sun, Jia Chen, Jia-Ke Chen   +7 more
doaj   +1 more source

UAV-Based Intelligent Sensing Over CF-mMIMO Communications: System Design and Experimental Results

IEEE Open Journal of the Communications Society
This paper presents an uncrewed aerial vehicle (UAV)-based intelligent sensing system designed to operate within a cell-free massive multiple-input multiple-output (CF-mMIMO) network, addressing key limitations in performing integrated sensing and ...
Jian Sun, Wei Shi, Jiacheng Yao, Wei Xu, Dongming Wang, Yang Cao   +5 more
doaj   +1 more source

Deep Reinforcement Learning for RIS-Aided Multiuser MISO System with Hardware Impairments

Applied Sciences, 2022
In this paper, we study a reconfigurable intelligent surface (RIS)-aided multiuser MISO system with imperfect hardware, where the transceiver design is based on the statistical channel state information (CSI).
Wenjie Ma, Liuchang Zhuo, Luchu Li, Yuhao Liu, Hong Ren   +4 more
doaj   +1 more source

Mobile Alerts / Center for the Study of Mobile Devices and Communications [PDF]

, 2012
The use of mobile devices has become an integral part of our life today. Both on personal as well as business fronts, mobile devices have become a key mechanism for us to stay connected to the outside world.
Center for the Study of Mobile Devices and Communications, Singh, Gurminder   +1 more
core