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A Tutorial on Chirp Spread Spectrum Modulation for LoRaWAN: Basics and Key Advances

open access: yesIEEE Open Journal of the Communications Society
Chirp spread spectrum (CSS) signal is the heart of long-range (LoRa) modulation, also known as CSS modulation, and is used in long-range wide area network (LoRaWAN) in Internet of things (IoT) scenarios.
Alireza Maleki   +3 more
doaj   +4 more sources

Multiuser Chirp Spread Spectrum Transmission in an Underwater Acoustic Channel Applied to an AUV Fleet [PDF]

open access: yesSensors, 2020
The objective of this paper is to provide a multiuser transmission technique for underwater acoustic communication in the framework of an Autonomous Underwater Vehicle (AUV) fleet.
Christophe Bernard   +3 more
doaj   +2 more sources

A Novel Multi-Slope Chirp Modulation and Demodulation with Instantaneous Chirp Rate Estimation [PDF]

open access: yesSensors
The growth of Internet of Things (IoT) applications is driving demand for Low-Power Wide-Area Networks (LPWANs) to support higher data rates with the same energy efficiency.
Apiwat Magkeethum   +2 more
doaj   +2 more sources

M-Ary Direct Modulation Chirp Spread Spectrum for Spectrally Efficient Communications

open access: yesInformation, 2023
Spread spectrum techniques, such as the Chirp Spread Spectrum (CSS) used by LoRa technology, are important for machine-to-machine communication in the context of the Internet of Things.
Jocelyn Edinio Zacko Gbadoubissa   +3 more
doaj   +3 more sources

M-ary nonlinear sine chirp spread spectrum for underwater acoustic communication based on virtual time-reversal mirror method

open access: yesEURASIP Journal on Wireless Communications and Networking, 2021
Linear chirp spread spectrum technique is widely used in underwater acoustic communication because of their resilience to high multipath and Doppler shift.
Songzuo Liu   +5 more
doaj   +1 more source

Performance Analysis of the Pilot and Data Component of a CSS Signal for LEO-PNT

open access: yesEngineering Proceedings, 2023
From the analysis of chirp spread spectrum (CSS) signals in radar and communication applications, we can distinguish the cases of estimating only data or time-delay propagation or Doppler frequency when all the other parameters are known or set to zero ...
Daniel Egea-Roca   +2 more
doaj   +1 more source

Coding and Coherent Decoding techniques for Continuous Single Slope Cyclic Shift Chirp Signal [PDF]

open access: yesRadioengineering, 2023
Chirp signals are currently widely used in broadband and spread spectrum communications due to their advantageous features, such as immunity to fading noise, low power consumption, consistent long-range transmission, and constant bandwidth.
L. Kirasamuthranon   +2 more
doaj  

Long-Range Acoustic Communication Using Differential Chirp Spread Spectrum

open access: yesApplied Sciences, 2020
Here, we propose a new modulation method using chirp spread spectrum (CSS) modulation to indicate the result of long-range acoustic communication (LRAC).
Joohyoung Lee   +3 more
doaj   +1 more source

IoT Network Design Using Open-Source LoRa Coverage Emulator

open access: yesIEEE Access, 2021
Many wireless Internet-of-Things applications require extended battery life ranging from a few months to a few years. Such applications have motivated the recent developments in low power wide area networks, including the rise of Long Range (LoRa ...
Bassel Al Homssi   +5 more
doaj   +1 more source

Impact of using chirp spread spectrum physical layer and request‐to‐send/clear‐to‐send combined with frame concatenation in the IEEE 802.15.4 non‐beacon enabled mode performance

open access: yesIET Wireless Sensor Systems, 2023
This paper studies the performance improvement of the IEEE 802.15.4 non‐beacon‐enabled mode originated by the inclusion of the Request‐To‐Send/Clear‐To‐Send (RTS/CTS) handshake mechanism resulting in frame concatenation. Under IEEE 802.15.4 employing RTS/
Norberto Barroca   +3 more
doaj   +1 more source

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