Underlying Security Transmission Design for Orthogonal Time Frequency Space (OTFS) Modulation [PDF]
Sensors, 2022 With the aim of ensuring secure transmission in high-mobility wireless scenarios, this paper proposes a 2D permutation-aided Orthogonal Time Frequency Space (OTFS) secure transmission scheme, which uses the Gosudarstvennyi Standard (GOST) algorithm to ...
Wei Liang +4 more
doaj +4 more sources
Channel Estimation for Orthogonal Time Frequency Space (OTFS) Massive MIMO [PDF]
IEEE Transactions on Signal Processing, 2019 Orthogonal time frequency space (OTFS) modulation outperforms orthogonal frequency division multiplexing (OFDM) in high-mobility scenarios. One challenge for OTFS massive MIMO is downlink channel estimation due to the large number of base station antennas.
Wenqian Shen +4 more
exaly +6 more sources
A Simple Variational Bayes Detector for Orthogonal Time Frequency Space (OTFS) Modulation [PDF]
IEEE Transactions on Vehicular Technology, 2020 Submitted to IEEE ...
Weijie Yuan 0001 +3 more
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The Orthogonal Time Frequency Space (OTFS) Technique In 6G Wireless Communications [PDF]
BIO Web of ConferencesThe orthogonal time-frequency space (OTFS) technique is a potential waveform modulation method that modulates data in the delaydoppler (DD) domain. OTFS differs from traditional multiplexing techniques by utilizing two-dimensional modulation to switch ...
Ramadhan Ali J., TaeiZadeh Ali
doaj +2 more sources
Orthogonal Time Frequency Space (OTFS) Modulation Based Radar System [PDF]
2019 IEEE Radar Conference (RadarConf), 2019 Orthogonal time frequency space (OTFS) modulation was proposed to tackle the destructive Doppler effects in wireless communications, with potential applications to many other areas. In this paper, we investigate its application to radar systems, and propose a novel efficient OTFS-based matched filter algorithm for target range and velocity estimation ...
Patchava Raviteja +3 more
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China Communications, 2023 In the 6G era, space-air-Ground integrated networks (SAGIN) are anticipated to deliver global coverage, necessitating support for a diverse array of emerging applications in high-mobility, hostile environments. Under such conditions, conventional orthogonal frequency division multiplexing (OFDM) modulation, widely employed in cellular and Wi-Fi ...
Yuan, Weijie +6 more
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OTFS Radar Waveform Design Based on Information Theory [PDF]
EntropyIn this work, we consider the waveform design for radar systems based on orthogonal time–frequency space (OTFS). The conditional mutual information (CMI), chosen as a promising metric for assessing the radar cognitive capability, serves as the criterion ...
Qilong Miao +3 more
doaj +2 more sources
Hamming Distance Optimized Underwater Acoustic OTFS-IM Systems [PDF]
Entropy, 2023 The orthogonal time frequency space (OTFS) modulation technique can provide reliable communication in time-varying channels. Due to the dispersive characteristics of underwater acoustic channels, this paper proposes an OTFS-IM underwater acoustic ...
Xiaopeng Guo +4 more
doaj +2 more sources
A Structured Sparse Bayesian Channel Estimation Approach for Orthogonal Time—Frequency Space Modulation [PDF]
Entropy, 2023 Orthogonal time–frequency space (OTFS) modulation has been advocated as a promising waveform for achieving integrated sensing and communication (ISAC) due to its superiority in high-mobility adaptability and spectral efficiency.
Mi Zhang +6 more
doaj +2 more sources
Integrated Sensing and Communication Target Detection Framework and Waveform Design Method Based on Information Theory [PDF]
SensorsTarget detection is a core function of integrated sensing and communication (ISAC) systems. The traditional likelihood ratio test (LRT) target detection algorithm performs inadequately under low signal-to-noise ratio (SNR) conditions, and the performance
Qilong Miao +4 more
doaj +2 more sources