Results 11 to 20 of about 3,409 (190)

Model of an Open-Source MicroPython Library for GSM NB-IoT [PDF]

Sensors
The growing adoption of the Internet of Things (IoT) demands scalable, energy-efficient communication for autonomous devices. Narrowband IoT (NB-IoT), as a low-power wide-area technology, offers reliable connectivity but remains difficult to integrate in
Antonii Lupandin, Volodymyr Kopieikin, Maksym Khruslov, Iryna Artyshchuk, Ruslan Shevchuk   +4 more
doaj   +2 more sources

Hybrid GA-PSO Optimization for Controller Placement in Large-Scale Smart City IoT Networks [PDF]

Sensors
The Internet of Things (IoT) plays an important role in the development of smart cities. IoT forms a large network, and optimal controller placement plays a crucial role in ensuring network performance and resilience.
Sheeraz Ali Memon, Darius Andriukaitis, Dangirutis Navikas, Vytautas Markevičius, Algimantas Valinevičius, Mindaugas Žilys, Michal Prauzek, Jaromir Konecny, Zhixiong Li, Tomyslav Sledevič, Michal Frivaldsky, Dardan Klimenta   +11 more
doaj   +2 more sources

Understanding the Potentials of Narrowband Internet of Things (NB-IoT) Cellular Technology: Salient Features, Architecture, Smart Applications and Quality of Service (QoS) Challenges

IEEE Open Journal of the Communications Society
Since the last decade, the number of Internet of Things (IoT) devices has increased dramatically and to operate them at low power has been a great challenge.
Muhammad Waseem, Alicia Lopez, Pedro Luis Carro, Maria Angeles Losada, Dwight Richards, Abdul Aziz   +5 more
doaj   +3 more sources

A Smart Parking Solution by Integrating NB-IoT Radio Communication Technology into the Core IoT Platform

Future Internet, 2022
With the emerging Internet of Things (IoT) technologies, the smart city paradigm has become a reality. Wireless low-power communication technologies (LPWAN) are widely used for device connection in smart homes, smart lighting, mitering, and so on.
Esad Kadusic, Natasa Zivic, Christoph Ruland, Narcisa Hadzajlic   +3 more
doaj   +1 more source

Complexity-Efficient Coherent Physical Cell Identity Detection Method for Cellular IoT Systems

Mathematics, 2022
Narrowband Internet of Things (NB-IoT) is one of the low-power wide-area network technologies that aim to support enormous connection, deep coverage, low power consumption, and low cost. Therefore, low cost of implementation and maintenance is one of the
Young-Hwan You, Yong-An Jung, Sung-Hun Lee, Intae Hwang   +3 more
doaj   +1 more source

Narrowband Internet of Things (NB-IoT) and LTE Systems Co-Existence Analysis [PDF]

2018 IEEE Global Communications Conference (GLOBECOM), 2018
In this paper, we establish a comprehensive uplink system model for in-band and guard-band Narrowband Internet of Things (NB-IoT) with arbitrary sample duration in the NB-IoT device. The mathematical expressions of received LTE and NB-IoT signals are derived.
Yang, Bowen, Zhang, Lei, Qiao, Deli, Zhao, Guodong, Imran, Muhammad Ali   +4 more
openaire   +1 more source

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

IET 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, Tingting Liang, Zhao Zhang, Guisong Yang, Linghe Kong, Ming Liu   +5 more
doaj   +1 more source

Persistent Periodic Uplink Scheduling Algorithm for Massive NB-IoT Devices

Sensors, 2022
Narrowband Internet of Things (NB-IoT) is one of the low-power wide-area network (LPWAN) technologies that aim to support enormous connections, featuring wide-area coverage, low power consumption, and low costs. NB-IoT could serve a massive number of IoT
Tin-Yu Wu, Ren-Hung Hwang, Abhishek Vyas, Chia-Yiu Lin, Chi-Ruei Huang   +4 more
doaj   +1 more source

Cross-Cycled Uplink Resource Allocation over NB-IoT

Sensors, 2021
Before each user equipment (UE) can send data using the narrowband physical uplink shared channel (NPUSCH), each UE should periodically monitor a search space in the narrowband physical downlink control channel (NPDCCH) to decode a downlink control ...
Ya-Ju Yu, Yu-Hsiang Huang, Yuan-Yao Shih
doaj   +1 more source

Time Domain Analysis of NB-IoT Signals

Applied Sciences, 2023
The NB-IoT (NarrowBand-Internet of Things) radio technology is now widely implemented by mobile phone network operators to support the communication of IoT devices such as smart meters, insurance black boxes for cars, network connected waste bins, smart ...
Andrea Barellini, Barbara Bracci, Gaetano Licitra, Alberto Maria Silvi   +3 more
doaj   +1 more source