Results 11 to 20 of about 2,083,913 (216)
Layered Chirp Spread Spectrum Modulations for LPWANs
IEEE Transactions on CommunicationsThis article examines two chirp spread spectrum techniques specifically devised for low-power wide-area networks (LPWANs) to optimize energy and spectral efficiency (SE). These methods referred to as layered CSS (LCSS) and layered dual-mode CSS (LDMCSS),
Bomfin, Roberto +4 more
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Precise Location Technology Based on Chirp Spread Spectrum
Applied Mechanics and Materials, 2010 This article introduces chirp spread spectrum technology (CSS for short), and location algorithm is optimized. Symmetric double-sided two way ranging technique (SDS–TWR for short) is applied to improve measurement accuracy and range.
Yan Zhang
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Chirp Spread Spectrum Transceiver Design and Implementation for Real Time Locating System
International Journal of Distributed Sensor Networks, 2015 A chirp spread spectrum (CSS) transceiver architecture for IEEE 802.15.4a is proposed and implemented. In the transmitter, the size of the read-only memory that stores CSS signal samples for the chirp modulator is reduced by removing duplicate samples ...
Sangdeok Kim, Jong-Wha Chong
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Generalized Chirp Spread Spectrum for Underwater Acoustic Communications
ElectronicsIn this paper, we propose a generalized-chirp spread spectrum (G-CSS) that can have various modulation orders and offers superior bit error rate (BER) performance to improve the communication performance of existing chirp-based modulation/demodulation ...
Hojun Lee +4 more
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The varying w spread spectrum effect for radio interferometric imaging [PDF]
, 2013 We study the impact of the spread spectrum effect in radio interferometry on the quality of image reconstruction. This spread spectrum effect will be induced by the wide field-of-view of forthcoming radio interferometric telescopes.
Wolz, Laura; id_orcid +4 more
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In-phase and Quadrature Chirp Spread Spectrum for IoT Communications [PDF]
GLOBECOM 2020 - 2020 IEEE Global Communications Conference, 2020 2020 IEEE Global Communications Conference: Selected Areas in Communications: Internet of Things and Smart Connected Communities (Globecom2020 SAC IoTSCC)
Ivo Bizon Franco de Almeida +3 more
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Noncoherent Multiuser Chirp Spread Spectrum: Performance With Doppler Shift and Asynchronism [PDF]
IEEE Transactions on Communications, 2021 Chirp spread spectrum, Noncoherent detection, Asynchronism, Doppler, Chirp, FMCW, Analysis, BER ...
Nozhan Hosseini, David W. Matolak
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IEEE Access, 2020 To improve the anti-interference for ELF/VLF communication based on modulated heating lower-ionosphere, chirp spread spectrum technology with strong anti-interference is combined with square wave amplitude modulation, a novel method of chirp-BOK ...
Kaijie Zhou, Huali Wang, Peipei Cao
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Reliable and Low-Complexity Chirp Spread Spectrum-Based Aerial Acoustic Communication
IEEE Access, 2020 Aerial acoustic communication (AAC) has been developed for a variety of Internet-of-things (IoT) applications, thanks to the merit of embedding small amounts of data directly into audio contents and transmitting them through commercial off-the-shelf ...
Jihwan Lee +3 more
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Photonics, 2022 Compact laser plasma accelerators generate high-energy electron beams with increasing quality. When used in inverse Compton backscattering, however, the relatively large electron energy spread jeopardizes potential applications requiring small bandwidths.
Vittoria Petrillo +7 more
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