Results 21 to 30 of about 206,497 (302)

Models of the cardiac L‐type calcium current: A quantitative review

open access: yesWIREs Mechanisms of Disease, Volume 15, Issue 1, January/February 2023., 2023
We discuss 73 published models of mammalian ICaL and find differences in gating kinetics, electrochemical driving force, and sensitivity to internal calcium concentrations, leading to considerable variability in their predictions. Abstract The L‐type calcium current (ICaL) plays a critical role in cardiac electrophysiology, and models of ICaL are vital
Aditi Agrawal   +7 more
wiley   +1 more source

Reinforcement Learning Based Latency Minimization in Secure NOMA-MEC Systems With Hybrid SIC

open access: yesIEEE Transactions on Wireless Communications, 2023
In this paper, physical layer security (PLS) in a non-orthogonal multiple access (NOMA)-based mobile edge computing (MEC) system is investigated, where hybrid successive interference cancellation (SIC) decoding is considered.
Kaidi Wang   +3 more
semanticscholar   +1 more source

Joint power control and user grouping mechanism for efficient uplink non‐orthogonal multiple access‐based 5G communication: Utilising the Lèvy‐flight firefly algorithm

open access: yesIET Networks, EarlyView., 2023
We utilise a metaheuristic optimisation method, inspired by nature, called the Lévy‐flight firefly algorithm (LFA), to tackle the power regulation and user grouping in the NOMA systems. Abstract The non‐orthogonal multiple access strategies have shown promise to boost fifth generation and sixth generation wireless networks' spectral efficiency and ...
Zaid Albataineh   +4 more
wiley   +1 more source

Index Modulation for STAR-RIS Assisted NOMA System

open access: yesIEEE Communications Letters, 2023
In this letter, we first incorporate the concept of index modulation (IM) into simultaneously transmitting and reflecting reconfigurable intelligent surface (STAR-RIS) aided non-orthogonal multiple access (NOMA) system to improve the spectral efficiency.
Jing Zhu   +4 more
semanticscholar   +1 more source

On the analytical investigation of hybrid transmission NOMA (H-NOMA) [PDF]

open access: yes, 2021
<div>Non-orthogonal multiple access (NOMA) is shown to be the optimal channel access method and a strong candidate to be employed at the fifth generation (5G) and beyond networks. This paper studies direct transmission (DT) and cooperative transmission (CT) modes of operations in NOMA communications and proposes an investigation on evolving a ...
Hüseyin Haci, Joydev Ghosh
openaire   +2 more sources

NOMA for Integrating Sensing and Communications Toward 6G: A Multiple Access Perspective [PDF]

open access: yesIEEE wireless communications, 2022
This article focuses on the development of integrated sensing and communications (ISAC) from a multiple access (MA) perspective, where the idea of non-orthogonal multiple access (NOMA) is exploited for harmoniously accommodating the sensing and ...
Xidong Mu, Zhao-Jie Wang, Yuanwei Liu
semanticscholar   +1 more source

Inter Numerology Interference Reduction Using Windowing Technique For OFDM Based Multi-Numerologies

open access: yesJournal of Applied Science and Engineering, 2022
Cyclic Prefix – Orthogonal Frequency Division Multiplexing is undoubtedly the fundamental waveform for the upcoming wireless standards. Mixed / multi-numerology scheme is one of the promising key features for 5G wireless standard, but it suffers from a ...
P. Kumar, K.R. Usha Rani
doaj   +1 more source

NOMA-Based VLC Systems: A Comprehensive Review

open access: yesItalian National Conference on Sensors, 2023
The enhanced proliferation of connected entities needs a deployment of innovative technologies for the next generation wireless networks. One of the critical concerns, however, is the spectrum scarcity, due to the unprecedented broadcast penetration rate
S. Mohsan   +5 more
semanticscholar   +1 more source

Is NOMA Efficient in Multi-Antenna Networks? A Critical Look at Next Generation Multiple Access Techniques [PDF]

open access: yesIEEE Open Journal of the Communications Society, 2021
In the past few years, a large body of literature has been created on downlink Non-Orthogonal Multiple Access (NOMA), employing superposition coding and Successive Interference Cancellation (SIC), in multi-antenna wireless networks.
B. Clerckx   +9 more
semanticscholar   +1 more source

Communication, sensing, computing and energy harvesting in smart cities

open access: yesIET Smart Cities, Volume 4, Issue 4, Page 265-274, December 2022., 2022
Abstract A smart city provides diverse services based on real‐time data obtained from different devices deployed in urban areas. These devices are largely battery‐powered and widely placed. Therefore, providing continuous energy to these devices and ensuring their efficient sensing and communications are critical for the wide deployment of smart cities.
Yusha Liu, Kun Yang
wiley   +1 more source

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