Results 141 to 150 of about 1,422 (172)

Deep3DSIM: Super-resolution imaging of thick tissue using 3D structured illumination with adaptive optics. [PDF]

open access: yesElife
Wang J   +15 more
europepmc   +1 more source

Orthogonal Time Frequency Space (OTFS) With Dual-Mode Index Modulation

IEEE Wireless Communications Letters, 2021
Orthogonal time frequency space (OTFS) modulation has been proved to have better bit error rate (BER) performance over orthogonal frequency division multiplexing (OFDM) under high-mobility conditions. In this letter, a new transmission scheme, called OTFS with dual-mode index modulation (OTFS-DM-IM), is proposed to balance the transmission reliability ...
Hang Zhao, Dongxuan He, Hua Wang
exaly   +2 more sources

OTFS-SCMA: A Code-Domain NOMA Approach for Orthogonal Time Frequency Space Modulation

IEEE Transactions on Communications, 2021
Orthogonal time frequency space (OTFS) modulation is a two-dimensional (2-D) modulation technique that has the potential to overcome the challenges faced by orthogonal frequency division multiplexing (OFDM) in high Doppler environments. The performance of OTFS in a multi-user scenario with orthogonal multiple access (OMA) techniques has been impressive.
Kuntal Deka   +2 more
exaly   +2 more sources

Doppler Resilient Orthogonal Time-Frequency Space (OTFS) Systems Based on Index Modulation

2020 IEEE 91st Vehicular Technology Conference (VTC2020-Spring), 2020
High mobility and high spectrum efficiency are two main challenges for 5G communication. Many new technologies are proposed to meet these requirements. Orthogonal time frequency space (OTFS) is a novel scheme to combat the high Doppler effect under time-varying channel.
Pingzhi Fan, Yong Liang Guan
exaly   +2 more sources

A Low Complexity Channel Estimation Scheme for Orthogonal Time Frequency Space (OTFS) System with Synchronization Errors

2021 IEEE 6th International Conference on Computer and Communication Systems (ICCCS), 2021
Orthogonal Time Frequency Space, also known as OTFS, has been proved to significantly outperform Orthogonal Frequency Division Multiplexing, also known as OFDM, in various high-mobility scenarios. In this work, a low complexity channel estimation scheme is proposed with pilot embedded in Delay-Doppler domain. At the same time, other interfering factors
Michael Mao Wang
exaly   +2 more sources

Error Performance of Orthogonal Time Frequency Space (OTFS) Modulation

2019 IEEE International Conference on Communications Workshops (ICC Workshops), 2019
Orthogonal time frequency space (OTFS) transmits information symbols in the delay-Doppler domain rather than in the time-frequency domain (as with OFDM). In its original version, OTFS uses transmit and receive shaping waveforms which are biorthogonal with respect to translations by integer multiples of basic time and frequency intervals.
Ezio Biglieri, P Raviteja, Yi Hong
exaly   +2 more sources

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