Results 11 to 20 of about 491,261 (311)

Orthogonal Time Frequency Space Modulation—Part II: Transceiver Designs [PDF]

open access: yesIEEE Communications Letters, 2023
5 pages, 5 figures, submitted to IEEE Communications ...
Shuangyang Li   +2 more
exaly   +4 more sources

Orthogonal Time Frequency Space Modulation [PDF]

open access: yes2017 IEEE Wireless Communications and Networking Conference (WCNC), 2017
A new two-dimensional modulation technique called Orthogonal Time Frequency Space (OTFS) modulation designed in the delay-Doppler domain is introduced. Through this design, which exploits full diversity over time and frequency, OTFS coupled with equalization converts the fading, time-varying wireless channel experienced by modulated signals such as ...
Ronny Hadani   +6 more
openaire   +3 more sources

Noncoherent Orthogonal Time Frequency Space Modulation [PDF]

open access: yesIEEE Transactions on Wireless Communications
The recently-developed orthogonal time frequency space (OTFS) modulation is capable of transforming the time varying fading of the time-frequency (TF) domain into the time-invariant fading representations of the delay-Doppler (DD) domain. The OTFS system using orthogonal frequency-division multiplexing (OFDM) as inner core naturally requires the ...
Chao Xu 0005   +8 more
openaire   +2 more sources

Multi-Pilot Channel Estimation for Orthogonal Time–Frequency Space Systems Based on Constant-Amplitude Zero-Autocorrelation Sequences [PDF]

open access: yesSensors
Future communication systems must support high-speed mobile scenarios, while the mainstream Orthogonal Frequency Division Multiplexing (OFDM) technology faces severe inter-carrier interference in such environments.
Renjie Ju   +6 more
doaj   +2 more sources

Space-Time-Frequency Diversity for OFDM-Based Indoor Power Line Communication [PDF]

open access: yesRadioengineering, 2015
In this paper, full rate space-time-frequency coding applied to orthogonal frequency division multiplexing based power line communication systems. The proposed systems yield both time and frequency diversity and keep transmission rate full.
G. Hacioglu
doaj   +4 more sources

New Full-Diversity Space-Time-Frequency Block Codes with Simplified Decoders for MIMO-OFDM Systems [PDF]

open access: yesRadioengineering, 2014
Multiple-input multiple-output orthogonal frequency-division multiplexing (MIMO-OFDM) is known as a promising solution for wideband wireless communications. This is why it has been considered as a powerful candidate for IEEE 802.11n standard.
M. Shahabinejad   +2 more
doaj   +2 more sources

Autoencoder-Based Enhanced Orthogonal Time Frequency Space Modulation

open access: yesIEEE Communications Letters, 2023
Orthogonal time frequency space (OTFS) is a novel waveform that provides a superior performance in doublydispersive channels. Since it spreads information symbols across the entire delay-Doppler plane, OTFS can achieve full diversity. However, reliability still needs to be improved in OTFS systems to meet the stringent demands of future communication ...
Yusuf Islam Tek   +2 more
openaire   +3 more sources

Cooperative transmission of UAV swarm using orthogonal time–frequency space modulation

open access: yesICT Express
Unmanned aerial vehicles (UAVs) emerge as versatile aerial nodes capable of dynamically filling coverage gaps and enabling mission-critical communication based on their mobile nature.
Usman Iqbal   +4 more
doaj   +2 more sources

Orthogonal Time Frequency Space for Integrated Sensing and Communication: A Survey

open access: yesCoRR
Sixth-generation (6G) wireless communication systems, as stated in the European 6G flagship project Hexa-X, are anticipated to feature the integration of intelligence, communication, sensing, positioning, and computation. An important aspect of this integration is integrated sensing and communication (ISAC), in which the same waveform is used for both ...
Eyad Shtaiwi   +4 more
openaire   +3 more sources

Orthogonal Time-Frequency-Space (OTFS) and Related Signaling

open access: yesCoRR
The principle of orthogonal time-frequency-space (OTFS) signaling is firstly analyzed, followed by explaining that OTFS embeds another signaling scheme referred to as orthogonal short-time Fourier (OSTF). Then, the relationship among OTFS, OSTF, orthogonal frequency-division multiplexing (OFDM) and single-carrier frequency-division multiple-access (SC ...
Lie-Liang Yang
openaire   +3 more sources

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