Results 41 to 50 of about 9,786 (180)

Performance analysis of feedback-free collision resolution NDMA protocol [PDF]

open access: yes, 2018
To support communications of a large number of deployed devices while guaranteeing limited signaling load, low energy consumption, and high reliability, future cellular systems require efficient random access protocols.
Agustín de Dios, Adrián   +3 more
core   +2 more sources

Analysis of NB-IoT technology character and networking

open access: yes物联网学报, 2017
In order to meet cellular Internet of Things development requirements,3GPP R13 released NB-IoT,which had characters of wide area coverage ,large connections,low power,low cost and low rate.Technology theory and character of NB-IoT were firstly introduced,
Guang-hui ZHANG, Zhen-qiang SUN, Na LU
doaj   +2 more sources

In‐Wheel Piezoelectric DC Power Generator With Zero Resistive Torque

open access: yesAdvanced Science, EarlyView.
In this paper, we present a wheel‐shaped direct‐current piezoelectric generator (DC‐PG) that fundamentally overcomes these constraints by producing phase‐stable DC electricity directly from rolling motion. By embedding this system into suitcase wheels, we demonstrated a fully integrated real‐time location tracking system powered solely by mechanical ...
Hyun Soo Kim   +19 more
wiley   +1 more source

Evolution and Testing of NB-IoT Solutions

open access: yesApplied Sciences, 2020
NB-IoT is the first 3GPP technology that has been specifically developed for IoT. In this paper, we will introduce the most important NB-IoT features included in Release 14, Release 15, and Release 16 and the need for testing of NB-IoT solutions.
Almudena Díaz Zayas   +2 more
doaj   +1 more source

Analysis of communication reliability in NarrowBand‐IoT oriented wireless sensor networks

open access: yesIET Communications, 2021
The unstable link quality in wireless sensor networks (WSNs) directly affects the success rate of data transmission. The retransmission mechanism is one of the commonly used methods to solve this problem. However, too many retransmissions could lower the
Xingyu He   +5 more
doaj   +1 more source

Improving the Performance of OTDOA based Positioning in NB-IoT Systems

open access: yes, 2017
In this paper, we consider positioning with observed-time-difference-of-arrival (OTDOA) for a device deployed in long-term-evolution (LTE) based narrow-band Internet-of-things (NB-IoT) systems.
Berg, Axel   +3 more
core   +1 more source

Emerging Memory and Device Technologies for Hardware‐Accelerated Model Training and Inference

open access: yesAdvanced Electronic Materials, EarlyView.
This review investigates the suitability of various emerging memory technologies as compute‐in‐memory hardware for artificial intelligence (AI) applications. Distinct requirements for training‐ and inference‐centric computing are discussed, spanning device physics, materials, and system integration.
Yoonho Cho   +6 more
wiley   +1 more source

AI‐Assisted IoT‐Enabled ECG Monitoring: Integrating Foundational and Generative AI Tools for Sustainable Smart Healthcare—Recent Trends

open access: yesAI &Innovation, EarlyView.
ABSTRACT The rapid evolution of the Internet of Things (IoT) has significantly advanced the field of electrocardiogram (ECG) monitoring, enabling real‐time, remote, and patient‐centric cardiac care. This paper presents a comprehensive survey of AI assisted IoT‐based ECG monitoring systems, focusing on the integration of emerging technologies such as ...
Amrita Choudhury   +2 more
wiley   +1 more source

Reliability Optimization in Narrowband Device-to-Device Communication for 5G and Beyond-5G Networks

open access: yesIEEE Access, 2021
The 5G and beyond-5G (B5G) is expected to be a key enabler for Internet-of-Everything (IoE). The narrowband Internet of Things (NB-IoT) is a low-power wide-area enabling technology introduced by the 3rd Generation Partnership in 5G.
Ali Nauman   +4 more
doaj   +1 more source

Toward personalized healthcare: Advances in two‐dimensional nanomaterial‐based flexible electrochemical sensors for physiological monitoring

open access: yesBMEMat, EarlyView.
This review provides an overview of the properties, composites and application of two‐dimensional (2D) nanomaterials for wearable electrochemical biosensors. Also, the challenges and future prospects of utilizing 2D nanomaterials in wearable electrochemical biosensor applications are discussed.
Kou Zhang   +8 more
wiley   +1 more source

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