Results 71 to 80 of about 690,835 (189)

Coverage and Deployment Analysis of Narrowband Internet of Things in the Wild

open access: yes, 2020
Narrowband Internet of Things (NB-IoT) is gaining momentum as a promising technology for massive Machine Type Communication (mMTC). Given that its deployment is rapidly progressing worldwide, measurement campaigns and performance analyses are needed to ...
Alay, Özgü   +6 more
core   +1 more source

Distributed MIMO Networks With Rotary ULAs for Indoor Scenarios Under Rician Fading

open access: yesIEEE Open Journal of the Communications Society
The Fifth-Generation (5G) wireless communications networks introduced native support for Machine-Type Communications (MTC) use cases. Nevertheless, current 5G networks cannot fully meet the very stringent requirements regarding latency, reliability, and ...
Eduardo N. Tominaga   +4 more
doaj   +1 more source

Performance Analysis of Millimeter-Wave Multi-hop Machine-to-Machine Networks Based on Hop Distance Statistics

open access: yesSensors, 2018
As an intrinsic part of the Internet of Things (IoT) ecosystem, machine-to-machine (M2M) communications are expected to provide ubiquitous connectivity between machines.
Haejoon Jung, In-Ho Lee
doaj   +1 more source

A Dynamic Backoff Window Scheme for Machine-Type Communications in Cyber-Physical Systems

open access: yesIEEE Access, 2020
A cyber-physical system (CPS) requires a time-bounded communication process for real-time interaction between the digital world and the physical world so that they can form a tight loop.
Jenhui Chen   +3 more
doaj   +1 more source

Probabilistic Allocation of Payload Code Rate and Header Copies in LR-FHSS Networks

open access: yesIEEE Access
We evaluate the performance of the LoRaWAN Long-Range Frequency Hopping Spread Spectrum (LR-FHSS) technique using a device-level probabilistic strategy for code rate and header replica allocation.
Jamil de Araujo Farhat   +5 more
doaj   +1 more source

The Engima Cipher Machine [PDF]

open access: yes, 2012
There can be little doubt that the German “Enigma” was the best and safest mechanical cipher machine available in any country at the outbreak of the Second World War.
Wilson, Tony
core   +1 more source

Performance Study and Enhancement of Access Barring for Massive Machine-Type Communications

open access: yesIEEE Access, 2019
Machine-type communications (MTC) is an emerging technology that boosts the development of the Internet of Things by providing ubiquitous connectivity and services. Cellular networks are an excellent choice for providing such hyper-connectivity thanks to
Jose-Ramon Vidal   +3 more
doaj   +1 more source

Augmented LoRa Modulation for the Massive Internet of Things

open access: yesIEEE Access
The communication device or transceiver under the massive Internet of Things (IoT) paradigm is characterized by the following essential aspects: 1) resource efficiency, 2) energy efficiency, 3) implementation efficiency, and 4) coverage.
Lei Wang   +2 more
doaj   +1 more source

Cognitive Hierarchy Theory for Distributed Resource Allocation in the Internet of Things

open access: yes, 2017
In this paper, the problem of distributed resource allocation is studied for an Internet of Things (IoT) system, composed of a heterogeneous group of nodes compromising both machine-type devices (MTDs) and human-type devices (HTDs).
Abuzainab, Nof   +3 more
core   +1 more source

Framework for enabling machine‐type communication services

open access: yesIET Wireless Sensor Systems, 2017
This study discusses how the third generation partnership project (3GPP) network can be used to enhance machine‐to‐machine (M2M) communication by developing a service capability framework that enables external third party application vendors to co‐ordinate with 3GPP network operators to facilitate M2M communications using a standardised interface to ...
openaire   +1 more source

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