Results 11 to 20 of about 823 (178)

Orthogonal Time Frequency Space (OTFS) Modulation for Wireless Communications

CoRR, 2022
Orthogonal time frequency space (OTFS) modulation is a recently proposed multi-carrier transmission scheme, which innovatively multiplexes the information symbols in the delay-Doppler (DD) domain instead of the conventional time-frequency (TF) domain. The DD domain symbol multiplexing gives rise to a direct interaction between the DD domain information
Li, Shuangyang ; https://orcid.org/
core   +6 more sources

Orthogonal Time Frequency Space Modulation Based on the Discrete Zak Transform [PDF]

Entropy, 2022
In orthogonal time frequency space (OTFS) modulation, information-carrying symbols reside in the delay-Doppler (DD) domain. By operating in the DD domain, an appealing property for communication arises: time-frequency (TF) dispersive channels encountered
Franz Lampel, Hamdi Joudeh, Alex Alvarado, Frans M. J. Willems   +3 more
doaj   +2 more sources

Performance Evaluation of OTFS and OFDM for 6G Waveform [PDF]

ITM Web of Conferences, 2022
Orthogonal time frequency space (OTFS) modulation is a coming technique addressing the challenges of 5G and 6G. It’s appeared to bring about outstanding error performance in delay – Doppler (DeDo) channels.
Mohammadi Abderrahim, Chakkor Saad, El Oualkadi Ahmed, Moussaoui Mohamed, Dkiouak Aziz, Baghouri Mostafa   +5 more
doaj   +2 more sources

Profuse Channel Estimation and Signal Detection Techniques for Orthogonal Time Frequency Space in 6G Epoch: A Survey

IEEE Access, 2023
Orthogonal time frequency space (OTFS) modulation is a booming multicarrier modulation technique and a promising candidate for achieving quality of services in high mobility scenarios of 5G new radio (NR) and beyond wireless communication systems.
Sundaresan Sabapathy, Jefrin Sharmitha Prabhu, Surendar Maruthu, Dushantha Nalin K. Jayakody   +3 more
doaj   +2 more sources

Auto-Encoder Based Orthogonal Time Frequency Space Modulation and Detection With Meta-Learning

IEEE Access, 2023
To tackle a Doppler sensitivity problem of orthogonal frequency division multiplexing (OFDM), orthogonal time frequency space (OTFS) has been investigated, where information is carried over delay-Doppler domain.
Jaehyun Park, Jun-Pyo Hong, Hyungju Kim, Byung Jang Jeong   +3 more
doaj   +2 more sources

A Comprehensive Experimental Emulation for OTFS Waveform RF-Impairments [PDF]

Sensors, 2022
The orthogonal time-frequency space (OTFS) waveform exceeds the challenges that face orthogonal frequency division multiplexing (OFDM) in a high-mobility environment with high time-frequency dispersive channels.
Abdelrahman Abushattal, Salah Eddine Zegrar, Ayhan Yazgan, Hüseyin Arslan   +3 more
doaj   +2 more sources

Pilot-Based Iterative Path Estimation and Maximum Ratio Combining (MRC)-Based Signal Detection of Orthogonal Time Frequency Space (OTFS) Modulation for 6G in Fractional Doppler Channels

Journal of Computer Networks and Communications, 2023
The sixth generation (6G) wireless networks are used to provide a large coverage, and also this generation needed to support different emerging applications in harsh areas with higher user equipment mobility. For the above case, a new modulation technique called orthogonal time–frequency space (OTFS) modulation has emerged as a promising technique to ...
Ephrem Gelamite Demere, Zelalem Hailu Gebeyehu   +1 more
openaire   +2 more sources

Orthogonal Time Frequency Space Modulation (OTFS) for Positioning Using LEO Satellites

2024 36th Conference of Open Innovations Association (FRUCT)
Peer ...
Guillem Foreman-Campins, José A López-Salcedo, Elena Simona Lohan   +2 more
openaire   +3 more sources

A Survey on Orthogonal Time Frequency Space Modulation [PDF]

IEEE Open Journal of the Communications Society
Orthogonal time frequency space (OTFS) modulation is strongly considered as a promising solution for high-mobility communications. In contrast to conventional modulation techniques, wherein information symbols are multiplexed in a one-dimensional time or
Mahmoud Aldababsa, Serdar Ozyurt, Gunes Karabulut Kurt, Oguz Kucur   +3 more
doaj   +2 more sources

Sparse-Recovery-Based Channel Estimation in Orthogonal Time-Frequency Space Modulation for High-Mobility Scenarios in 5G and Beyond

Journal of Communications Software and Systems
Orthogonal time frequency space (OTFS) modulation is a breakthrough waveform that significantly outperforms conventional modulation schemes in high-mobility scenarios. Unlike traditional approaches that operate in the time-frequency domain, OTFS exploits
Sundaresan Sabapathy, Surendar Maruthu, Deepika Sasi   +2 more
doaj   +2 more sources