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The Development and Progress of the UWB Physical Layer [PDF]

open access: yesMicromachines, 2022
Ultra-wideband (UWB) technology has been applied in many fields, such as radar and indoor positioning, because of its advantages of having a high transmission rate, anti-multipath interference, and good concealment.
Ziteng Lv   +8 more
doaj   +2 more sources

LoRaWAN Physical Layer-Based Attacks and Countermeasures, A Review [PDF]

open access: yesSensors, 2022
As LoRaWAN is one of the most popular long-range wireless protocols among low-power IoT applications, more and more focus is shifting towards security. In particular, physical layer topics become relevant to improve the security of LoRaWAN nodes, which ...
Henri Ruotsalainen   +3 more
doaj   +2 more sources

Problems with and Improvement of HCHO/NO2 for Diagnosing Ozone Sensitivity—A Case in Beijing

open access: yesRemote Sensing, 2023
Rfn (formaldehyde/nitrogen dioxide) is a common indicator based on satellite observations used to classify ozone formation sensitivity. However, it may underestimate anthropogenic volatile organic compounds (VOCs) in heavily polluted cities when only ...
Yanyu Kang   +8 more
doaj   +1 more source

Application of communication systems via the ultraviolet channel in FANET networks [PDF]

open access: yesMATEC Web of Conferences, 2020
The possibility of providing communication in difficult conditions on the basis of Flying Ad Hoc Networks (FANET) requires the use of non-electronic means of communication.
Vasilyev Gleb S.   +3 more
doaj   +1 more source

Practical Cross-Layer Radio Frequency-Based Authentication Scheme for Internet of Things

open access: yesSensors, 2021
The Internet of Things world is in need of practical solutions for its security. Existing security mechanisms for IoT are mostly not implemented due to complexity, budget, and energy-saving issues. This is especially true for IoT devices that are battery
Arie Haenel   +3 more
doaj   +1 more source

Research on Physical Layer Circuit of Train Ethernet

open access: yesKongzhi Yu Xinxi Jishu, 2022
Ethernet circuit based on IEEE 802.3 has been widely used in the field of rail transit. Open systems interconnection (OSI) model divides Ethernet into seven layers, of which the physical layer (PHY) belongs to the first layer, which is mainly responsible
WU Wenhui   +4 more
doaj   +1 more source

BICM-ID Labeling-Based Recipient Identification in a Heterogeneous Network

open access: yesSensors, 2023
The concept of labeling-based recipient identification (LABRID) for bit-interleaved coded modulation with iterative decoding (BICM-ID) is revisited.
Maciej Krasicki
doaj   +1 more source

Upgrading Physical Layer of Multi-Carrier OGFDM Waveform for Improving Wireless Channel Capacity of 5G Mobile Networks and Beyond

open access: yesInformation, 2020
On the brink of sophisticated generations of mobile starting with the fifth-generation (5G) and moving on to the future mobile technologies, the necessity for developing the wireless telecommunications waveform is extremely required.
Mohammad R. Kadhum
doaj   +1 more source

SDR Prototype for Clipped and Fast-Convolution Filtered OFDM for 5G New Radio Uplink

open access: yesIEEE Access, 2020
In wireless communications, higher transmission power enables higher coverage or higher data rate. However, due to hardware limitations, achieving high power efficiency becomes challenging.
Selahattin Gokceli   +9 more
doaj   +1 more source

A Simplistic Downlink Channel Estimation Method for NB-IoT

open access: yesApplied Sciences, 2023
This paper presents a downlink channel estimation method intended for a Narrowband Internet of Things (NB-IoT) access link. Due to its low computational complexity, this method is well suited for energy-efficient IoT devices, still providing acceptable ...
Jarosław Magiera
doaj   +1 more source

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