Zobrazeno 1 - 10
of 1 360
pro vyhledávání: '"Chirp spread spectrum"'
Publikováno v:
IEEE Open Journal of the Communications Society, Vol 5, Pp 4578-4612 (2024)
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. CSS modulation has drawn much attention from t
Externí odkaz:
https://doaj.org/article/b3a71063e016441bba649f5bf85c4b31
Publikováno v:
IEEE Access, Vol 12, Pp 83417-83426 (2024)
One of the most significant concerns in serial digital communication is the synchronization of data bits between the transmitter and receiver. Therefore, the preferred coding symbols should contain an inherited clock signal. The cyclic-shift chirp, w
Externí odkaz:
https://doaj.org/article/c3668d025a45403aa4d5eca9dca09d6a
Publikováno v:
IEEE Access, Vol 12, Pp 24949-25017 (2024)
The Long Range protocol, commonly referred to as LoRa, is a widely adopted and highly regarded method of utilizing chirp spread spectrum (CSS) techniques at the physical (PHY) layer to facilitate low-power wide-area network (LPWAN) connectivity. By t
Externí odkaz:
https://doaj.org/article/42950d3a28f6478d82882bbe2d8f3f02
Publikováno v:
Radioengineering, Vol 32, Iss 2, Pp 273-286 (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. As a resu
Externí odkaz:
https://doaj.org/article/fd6664873fe0431d861b550783c72f98
Publikováno v:
IEEE Open Journal of the Communications Society, Vol 4, Pp 1487-1498 (2023)
LoRa has been considered as a key enabler for the next generation Internet of Things (IoT) networks. However, the low spectral efficiency (SE) of chirp spread spectrum (CSS) modulation used in LoRa is a fatal drawback for its extensive applications i
Externí odkaz:
https://doaj.org/article/550098aa1b394c828933be404c675dc5
Publikováno v:
Engineering Proceedings, Vol 54, Iss 1, p 35 (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 ze
Externí odkaz:
https://doaj.org/article/082db498698f4d31ba8208046700a967
Akademický článek
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Akademický článek
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Autor:
Jocelyn Edinio Zacko Gbadoubissa, Ado Adamou Abba Ari, Emanuel Radoi, Abdelhak Mourad Gueroui
Publikováno v:
Information, Vol 14, Iss 6, p 323 (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. They offer high processing gain, reliable communication over lon
Externí odkaz:
https://doaj.org/article/f1c51e5fc0c44dc29eed7814314bceea
Autor:
Bassel Al Homssi, Kosta Dakic, Simon Maselli, Hans Wolf, Sithamparanathan Kandeepan, Akram Al-Hourani
Publikováno v:
IEEE Access, Vol 9, Pp 53636-53646 (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) te
Externí odkaz:
https://doaj.org/article/2bf85db08ff14b2a997a2000afbb3093