Results 61 to 70 of about 194,259 (259)

Performance Analysis of Signature-Based Grant-Free Random Access Under Impersonation Attacks

open access: yesIEEE Access, 2022
In massive machine-type communications (mMTC), user-specific and non-orthogonal signatures can be assigned to wireless devices for uplink grant-free access.
Nam Yul Yu
doaj   +1 more source

Network Lifetime Maximization for Cellular-Based M2M Networks

open access: yes, 2017
High energy efficiency is critical for enabling massive machine-type communications (MTC) over cellular networks. This work is devoted to energy consumption modeling, battery lifetime analysis, lifetime-aware scheduling and transmit power control for ...
Azari, Amin, Miao, Guowang
core   +1 more source

Goodbye, ALOHA! [PDF]

open access: yes, 2016
©2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new ...
Alonso Zárate, Jesús   +4 more
core   +2 more sources

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

open access: yesAdvanced Materials Technologies, EarlyView.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu   +8 more
wiley   +1 more source

Data Aggregation and Packet Bundling of Uplink Small Packets for Monitoring Applications in LTE

open access: yes, 2017
In cellular massive Machine-Type Communications (MTC), a device can transmit directly to the base station (BS) or through an aggregator (intermediate node).
Kim, Dong Min   +5 more
core   +1 more source

Reliable Reporting for Massive M2M Communications with Periodic Resource Pooling [PDF]

open access: yes, 2014
This letter considers a wireless M2M communication scenario with a massive number of M2M devices. Each device needs to send its reports within a given deadline and with certain reliability, e. g. 99.99%.
Madueño, Germán Corrales   +2 more
core   +2 more sources

MXene‐Coated 3D Printed Horn Antennas for Ku Frequency Band

open access: yesAdvanced Materials Technologies, EarlyView.
An additive manufacturing approach to 3D printing horn antennas and coating them with Ti3C2Tx MXene is proposed. Rapid fabrication of lightweight, high‐performance antennas operating in the Ku‐band (12.4–18 GHz) has been demonstrated. The MXene‐coated antennas exhibit comparable electromagnetic performance to conventional, costly aluminum ones, with ...
Zahra Sarpanah Sourkouhi   +3 more
wiley   +1 more source

Performance Analysis of Wireless Information Surveillance in Machine-Type Communication at Finite Blocklength Regime

open access: yesSensors, 2019
The Internet of Things (IoT) will feature pervasive sensing and control capabilities via the massive deployment of machine-type communication devices in order to greatly improve daily life. However, machine-type communications can be illegally used (e.g.,
Ruonan Dong, Baogang Li, Binyang Yan
doaj   +1 more source

Random Access Protocols for Massive MIMO

open access: yes, 2017
5G wireless networks are expected to support new services with stringent requirements on data rates, latency and reliability. One novel feature is the ability to serve a dense crowd of devices, calling for radically new ways of accessing the network ...
Björnson, Emil   +4 more
core   +1 more source

6G White Paper on Machine Learning in Wireless Communication Networks

open access: yes, 2020
The focus of this white paper is on machine learning (ML) in wireless communications. 6G wireless communication networks will be the backbone of the digital transformation of societies by providing ubiquitous, reliable, and near-instant wireless ...
Abbas, Robert   +26 more
core   +1 more source

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