Results 31 to 40 of about 819 (194)
Packet-Level Index Modulation for LoRaWAN
IEEE Access, 2021 The long range wide area network (LoRaWAN) is one of the enabling technologies for low power wide area (LPWA) networks. In LoRaWAN, a node transmits its packet to a gateway (GW) in an autonomous and decentralized manner.
Koichi Adachi +5 more
doaj +1 more source
A Flexible Physical Layer for LPWA Applications [PDF]
, 2018 In the context of Low Power Wide Area (LPWA) networks, terminals are expected to be low cost, to be able to communicate over a long distance, and to operate on battery power for many years. In order to support a wide range of LPWA applications, the next generation of LPWA technologies is expected to provide faster throughput, be more resilient, and ...
Mannoni, Valérian +3 more
openaire +3 more sources
Energy efficient indoor localisation for narrowband internet of things
CAAI Transactions on Intelligence Technology, Volume 8, Issue 4, Page 1150-1163, December 2023., 2023 Abstract There are an increasing number of Narrow Band IoT devices being manufactured as the technology behind them develops quickly. The high co‐channel interference and signal attenuation seen in edge Narrow Band IoT devices make it challenging to guarantee the service quality of these devices.
Ismail Keshta +8 more
wiley +1 more source
Flexible Multi-standard Digital Front-End for LPWA Technologies
, 2020 This paper proposes a flexible multi-standard digital frontend(DFE) hardware architecture designed for three mainlow-power wide-area (LPWA) technologies: LoRa, Sigfox,and narrowband-Internet of things (NB-IoT).We demonstratethe feasibility of an unified ...
Christophe Delacourt (8554106) +5 more
core +2 more sources
Benchmarking of Narrowband LPWA Physical Layer Ranging Technologies [PDF]
2019 16th Workshop on Positioning, Navigation and Communications (WPNC), 2019 Accurate radio signal based geolocalization for Low Power Wide Area networks is a key-enabler to various Internet of Things applications. However, localization with narrowband signals remains challenging in multipath environments. Sequential coherent multi-channel ranging improves temporal resolution while being compatible with narrowband transmissions.
Wolf, Florian +5 more
openaire +2 more sources
Anatomical phenotype of obstructive sleep apnea patients based on cluster analysis
Orthodontics &Craniofacial Research, Volume 26, Issue 4, Page 608-617, November 2023., 2023 Abstract Objectives To generate a novel subtype of obstructive sleep apnea (OSA) based on anatomical features and verify the differences in the response of different subtypes to orthodontic treatment, thus providing a theoretical reference for clinical decision‐making.
Liping Huang +3 more
wiley +1 more source
EV charging station control and management utilizing LPWA technologies.
, 2023 Bakalárska práca sa zaoberá prenosom OCPP (Open Charge Point) protokolu pomocou LPWA (Low -- Power Wide Area technologii). Na začiatku teoretickej časti je popísaný protokol OCPP, kde je kladený dôraz na bezpečnosť protokolu.
Mačina, Martin
core +3 more sources
Simplification of DFT and IDFT in PRACH
Electronics Letters, Volume 59, Issue 15, August 2023., 2023 In order to reduce the computational complexity, the authors proposed implement strategies for prime point discrete Fourier transform (DFT) and ultra‐long point inverse discrete Fourier transform (IDFT) in physical random access channel (PRACH), respectively.
Yufeng Jiang, Shouxin Kang
wiley +1 more source
A Comparative Survey of LPWA Networking
CoRR, 2018 10 ...
Joseph Finnegan, Stephen Brown 0001
openaire +3 more sources
An Analysis of the Energy Consumption of LPWA-based IoT Devices [PDF]
2018 International Symposium on Networks, Computers and Communications (ISNCC), 2018 The unique challenges posed by the breadth of Internet of Things applications have resulted in the development of a number of different Low Power Wide Area wireless solutions. These technologies enable scalable long range networks on cheap low power devices, facilitating the development of a ubiquitous Internet of Things. The energy efficiency of these
Finnegan, Joseph, Brown, Stephen
openaire +3 more sources