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

