Results 21 to 30 of about 34,935 (182)
Applied Sciences, 2022 In this paper, we consider a multiple reconfigurable intelligent surface (RIS)-assisted system using positioning information (PI) to explore the potential of Doppler effect mitigation and spectral efficiency (SE) enhancement in high-speed communications (
Ke Wang, Chan-Tong Lam, Benjamin K. Ng
doaj +1 more source
2023 IEEE International Conference on Acoustics, Speech, and Signal Processing Workshops (ICASSPW), 2023 Delay-Doppler waveform design has been considered as a promising solution to achieve reliable communication under high-mobility channels for the space-air-ground-integrated networks (SAGIN). In this paper, we introduce the cyclic delay-Doppler shift (CDDS) technique for delay-Doppler waveforms to extract transmit diversity in doubly selective channels.
Haoran Yin +6 more
openaire +2 more sources
Sea Ice Transition Detection Using Incoherent Integration and Deconvolution
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2020 Currently, reflectometry-based sea ice detection methods rely on observables extracted from delay-Doppler maps (DDM)s, which are sensitive to ice in the specular zone.
Benjamin J. Southwell +1 more
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Measurement-based analysis of delay-Doppler characteristics in an indoor environment [PDF]
, 2016 An analysis of delay-Doppler characteristics in the presence of moving people is presented for short-range communication in an indoor environment. Channel-sounding measurements have been carried out at 3.6 GHz in a crowded university hall during several ...
Hanssens, Brecht +4 more
core +1 more source
Delay-Doppler-Based Key Generation Using OTFS
IEEE Wireless Communications Letters, 2023 Key generation for secure communication is challenging in high-mobility scenarios due to the low coherence time. This is further exacerbated in frequency-division duplex systems due to the non-reciprocal wireless channel in uplink and downlink. The current work leverages the symplectic Fourier transform to convert fast-varying time-frequency domain ...
Muhammad Sohaib J. Solaija +2 more
openaire +3 more sources
Multipath channel identification by using global optimization in ambiguity function domain [PDF]
, 2011 Cataloged from PDF version of article.A new transform domain array signal processing technique is proposed for identification of multipath communication channels.
Arikan, O., Guldogan, M. B.
core +1 more source
Spatial resolution in GNSS-R under coherent scattering [PDF]
, 2020 © 2019 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes,creating new ...
Camps Carmona, Adriano José
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SNR degradation in GNSS-R measurements under the effects of radio-frequency interference [PDF]
, 2016 ©2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new ...
Alonso Arroyo, Alberto +5 more
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EURASIP Journal on Wireless Communications and Networking, 2007 Automatic target recognition (ATR) in target search phase is very challenging because the target range and mobility are not yet perfectly known, which results in delay-Doppler uncertainty.
Qilian Liang
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Wind direction signatures in GNSS-R observables from space [PDF]
, 2018 Peer ReviewedPostprint (published ...
Camps Carmona, Adriano José +6 more
core +2 more sources