IEEE Open Journal of the Communications SocietyIn recent years, alternative methods to orthogonal frequency division multiplexing (OFDM) have emerged to enhance link-level performance of wireless networks in high-mobility environments.
Carmen D'Andrea +3 more
doaj +1 more source
A Proof of Concept for OTFS Resilience in Doubly-Selective Channels by GPU-Enabled Real-Time SDR
, 2023 Orthogonal time frequency space (OTFS) is a modulation technique which is robust against the disruptive effects of doubly-selective channels. In this paper, we perform an experimental study of OTFS by a real-time software defined radio (SDR) setup.
Wang, Stephen +6 more
core
Low-Complexity Oversampled OTFS Receivers With Reduced Overhead
IEEE Open Journal of the Communications SocietyOrthogonal Time Frequency Space (OTFS) modulation enables reliable communication in fast time-varying, frequency-selective channels. It is a delay-Doppler (DD) domain modulation that models the information symbols and the channel in the DD domain.
Narendra Deconda +3 more
doaj +1 more source
Orthogonal Time Frequency Space (OTFS) Modulation in Underwater Acoustic Communications
This thesis introduces a heuristic Doppler compensation algorithm to mitigate severe intra-frame Doppler effects observed in high-mobility acoustic communication environments where Orthogonal Time Frequency Space (OTFS) Modulation is applied.
core
Unified Framework and Comparative Analysis of Delay-Doppler Communication Systems
IEEE Open Journal of the Communications SocietyDelay-Doppler (DD) system translates a time-varying channel into quasi-static time invariant channel by modulating the information in DD domain. This serves as a core principle behind orthogonal time frequency space (OTFS) and orthogonal delay Doppler ...
Sangeeta Nalluru +3 more
doaj +1 more source
Orthogonal Time Frequency Space with Delay-Doppler Alignment Modulation
Delay-Doppler alignment modulation (DDAM) is a novel technique to mitigate time-frequency doubly selective channels by leveraging the high spatial resolution offered by large antenna arrays and multi-path sparsity of millimeter wave (mmWave) and ...
Liu, Xianda +3 more
core
Outage Analysis of Orthogonal Time-Frequency Space Modulation in Nakagami-m Fading Channel
<p>Orthogonal Time-Frequency Space Modulation (OTFS) is a high-performance waveform for next-generation wireless communication systems, especially in cases of rapidly changing channel conditions.
Ilhan, Hacı +2 more
core +1 more source
An approach for 5G implementation in railways based on orthogonal time frequency space
Fifth Generation for Railways (5G-R) is a promising technology that seeks to improve safety, efficiency, and passenger experience by supporting a variety of services, such as real-time monitoring, predictive maintenance, autonomous operation, and ...
Rouz Salih Almabrouk +1 more
core +1 more source
Integrated Sensing and Communication via Orthogonal Time Frequency Space Signaling with Hybrid Message Passing Detection and Fractional Parameter Estimation. [PDF]
Sensors (Basel), 2023 Zhang J, Cai L, Liu H.
europepmc +1 more source
A Time Domain-Based Channel Estimator and Data Detector for OTFS Systems
Orthogonal time frequency space (OTFS) modulation has attracted significant attention recently due to its advantages over orthogonal frequency division multiplexing (OFDM) in high-mobility scenarios.
Sellathurai, Mathini; id_orcid +3 more
core +1 more source