Artificial Intelligent Based E- Health Monitoring Using Low Power Device in Wide Area Network

2021 ◽  
pp. 128-136
Author(s):  
M. Monisha ◽  
P. Vijayalakshmi ◽  
V. Rajendran ◽  
D. Ravikumar
Keyword(s):  
Low Power ◽  
Health Monitoring ◽  
Wide Area ◽  
Power Device ◽  
Area Network ◽  
Wide Area Network ◽  
Artificial Intelligent

scholarly journals Worldwide Connectivity for the Internet of Things Through LoRaWAN

2019 ◽  
Vol 11 (3) ◽  
pp. 57 ◽  
Author(s):  
Lorenzo Vangelista ◽  
Marco Centenaro
Keyword(s):  
Internet Of Things ◽  
Low Power ◽  
Cellular Network ◽  
Wide Area ◽  
The Internet ◽  
Area Network ◽  
Wide Area Network ◽  
Frequency Bands ◽  
The Moment ◽  
The Internet Of Things

The low-power wide-area network (LPWAN) paradigm is gradually gaining market acceptance. In particular, three prominent LPWAN technologies are emerging at the moment: LoRaWAN™ and SigFox™, which operate on unlicensed frequency bands, and NB-IoT, operating on licensed frequency bands. This paper deals with LoRaWAN™, and has the aim of describing a particularly interesting feature provided by the latest LoRaWAN™ specification—often neglected in the literature—i.e., the roaming capability between different operators of LoRaWAN™ networks, across the same country or even different countries. Recalling that LoRaWAN™ devices do not have a subscriber identification module (SIM) like cellular network terminals, at a first glance the implementation of roaming in LoRaWAN™ networks could seem intricate. The contribution of this paper consists in explaining the principles behind the implementation of a global LoRaWAN network, with particular focus on how to cope with the lack of the SIM in the architecture and how to realize roaming.

scholarly journals TECNOLOGIA DE LOW POWER WIDE AREA NETWORK (LPWAN) PARA MONITORAMENTO DE FROTAS: UMA REVISÃO DE LITERATURA

2019 ◽  
pp. 47-54
Author(s):  
Paulo Renato Câmera da Silva ◽  
Herman Augusto Lepikson ◽  
Marcus Vinícius Ivo da Silva ◽  
Rafael Barbosa Mendes
Keyword(s):  
Low Power ◽  
Wide Area ◽  
Area Network ◽  
Wide Area Network

Time-Modulated Antenna Array With Beam-Steering for Low-Power Wide-Area Network Receivers

2020 ◽  
Vol 19 (11) ◽  
pp. 1876-1880
Author(s):  
Grzegorz Bogdan ◽  
Konrad Godziszewski ◽  
Yevhen Yashchyshyn
Keyword(s):  
Low Power ◽  
Antenna Array ◽  
Beam Steering ◽  
Wide Area ◽  
Area Network ◽  
Wide Area Network

The Next Generation Architecture of Low Power Wide Area Network for Energy Platform

2019 ◽  
Author(s):  
Huy Nguyen ◽  
Nam Tuan Le ◽  
Pham Tung Lam ◽  
Nguyen Cong Hoan ◽  
Thanh Luan Vu ◽  
...  
Keyword(s):  
Low Power ◽  
Wide Area ◽  
Area Network ◽  
Next Generation ◽  
Wide Area Network

scholarly journals An Adaptive Spreading Factor Selection Scheme for a Single Channel LoRa Modem

Sensors ◽  
2020 ◽  
Vol 20 (4) ◽  
pp. 1008 ◽  
Author(s):  
Seungku Kim ◽  
Heonkook Lee ◽  
Sungho Jeon
Keyword(s):  
Low Power ◽  
Long Range ◽  
Single Channel ◽  
Wide Area ◽  
Area Network ◽  
Wide Area Network ◽  
Maximum Throughput ◽  
Spreading Factor ◽  
Selection Scheme ◽  
Data Rates

When the low power wide area network (LPWAN) was developed for the internet of things (IoT), it attracted significant attention. LoRa, which is one of the LPWAN technologies, provides low-power and long-range wireless communication using a frequency band under 1 GHz. A long-range wide area network (LoRaWAN) provides a simple star topology network that is not scalable; it supports multi-data rates by adjusting the spreading factor, code rate, and bandwidth. This paper proposes an adaptive spreading factor selection scheme for corresponding spreading factors (SFs) between a transmitter and receiver. The scheme enables the maximum throughput and minimum network cost, using cheap single channel LoRa modules. It provides iterative SF inspection and an SF selection algorithm that allows each link to communicate at independent data rates. We implemented a multi-hop LoRa network and evaluated the performance of experiments in various network topologies. The adaptive spreading factor selection (ASFS) scheme showed outstanding end-to-end throughput, peaking at three times the performance of standalone modems. We expect the ASFS scheme will be a suitable technology for applications requiring high throughput on a multi-hop network.

scholarly journals Performance of a low-power wide-area network based on LoRa technology: Doppler robustness, scalability, and coverage

2017 ◽  
Vol 13 (3) ◽  
pp. 155014771769941 ◽  
Author(s):  
Juha Petäjäjärvi ◽  
Konstantin Mikhaylov ◽  
Marko Pettissalo ◽  
Janne Janhunen ◽  
Jari Iinatti
Keyword(s):  
Low Power ◽  
Wide Area ◽  
Area Network ◽  
Wide Area Network
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