Results 11 to 20 of about 17,709 (313)
CDMA/OTFS Sensing Outperforms Pure OTFS at the Same Communication Throughput [PDF]
IEEE Open Journal of Vehicular TechnologyThere is a dearth of publications on the subject of spreading-aided Orthogonal Time Frequency Space (OTFS) solutions, especially for Integrated Sensing and Communication (ISAC), even though Code Division Multiple Access (CDMA) assisted multi-user OTFS ...
Hugo Hawkins +3 more
doaj +4 more sources
VLSI Architecture for Implementing OTFS
Wireless Personal Communications, 2023 Abstract Orthogonal Time Frequency Space (OTFS) modulation is proposed to support high-speed and reliable vehicular communication scenarios, which is a novel two-dimensional (2D) delay-Doppler domain modulation technique. Compared with traditional modulation schemes such as orthogonal frequency division multiplexing (OFDM), OTFS has displayed ...
Ashish Ranjan Shadangi +2 more
semanticscholar +2 more sources
ICC 2024 - IEEE International Conference on CommunicationsOrthogonal Time Frequency Space (OTFS) is a framework for communications and active sensing that processes signals in the delay-Doppler (DD) domain. It is informed by 6G propagation environments, where Doppler spreads measured in $\text{kHz}$ make it ...
Beyza Dabak +3 more
semanticscholar +3 more sources
Practical Synchronization for OTFS
ICC 2023 - IEEE International Conference on Communications, 2023 In the existing literature on joint timing and frequency synchronization of orthogonal time frequency space modulation (OTFS), practically infeasible impulse pilot with large peak-to-average power ratio (PAPR) is deployed. Hence, in this paper, we propose a timing offset (TO) and carrier frequency offset (CFO) estimation for OTFS over a linear time ...
Mohsen Bayat +2 more
openaire +5 more sources
On the Equivalence of Osdm and Otfs
Signal Processing, 2023 In this paper, we show the mathematical equivalence of two popular modulation schemes: OSDM and OTFS. The former is mainly used in underwater acoustic communications, while the latter scheme is a promising modulation technique in radio-frequency communications. Although literature suggests a link between the two modulation schemes by connecting them to
Ids Van der Werf +5 more
openaire +4 more sources
Off-grid Channel Estimation with Sparse Bayesian Learning for OTFS Systems [PDF]
IEEE Transactions on Wireless Communications, 2021 This paper proposes an off-grid channel estimation scheme for orthogonal time-frequency space (OTFS) systems adopting the sparse Bayesian learning (SBL) framework.
Zhiqiang Wei +4 more
semanticscholar +1 more source
OTFS—Predictability in the Delay-Doppler Domain and Its Value to Communication and Radar Sensing [PDF]
IEEE BITS the Information Theory Magazine, 2023 In our first paper (Mohammed et al., IEEE BITS Inf. Theory Mag., vol. 2, no. 2, pp. 36–55, Nov. 2022.), we explained why the Zak-OTFS input–output (I/O) relation is predictable and nonfading when the delay and Doppler periods are greater than the ...
S. K. Mohammed +3 more
semanticscholar +1 more source
Embedded Pilot-Aided Channel Estimation for OTFS in Delay–Doppler Channels [PDF]
IEEE Transactions on Vehicular Technology, 2018 Orthogonal time frequency space (OTFS) modulation was shown to provide significant error performance advantages over orthogonal frequency division multiplexing (OFDM) in delay–Doppler channels.
P. Raviteja, K. Phan, Yi Hong
semanticscholar +1 more source
OTFS—A Mathematical Foundation for Communication and Radar Sensing in the Delay-Doppler Domain [PDF]
IEEE BITS the Information Theory Magazine, 2022 Orthogonal time frequency space (OTFS) is a framework for communication and active sensing that processes signals in the delay-Doppler (DD) domain. This article explores three key features of the OTFS framework, and explains their value to applications ...
S. K. Mohammed +3 more
semanticscholar +1 more source
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 +3 more
doaj +1 more source