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Unified MIMO-multicarrier designs: a space–time shift keying approach [PDF]
, 2015 A survey and tutorial is provided on the subject of multiple-input multiple-output (MIMO) multicarrier (MC) systems relying on the space-time shift keying concept.
Sugiura, Shinya +3 more
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OTFS - Orthogonal Time Frequency Space
CoRR, 2016 In this paper we introduce a new 2D modulation technique called OTFS (Orthogonal Time Frequency & Space) that transforms information carried in the Delay-Doppler coordinate system to the familiar time-frequency domain utilized by traditional modulation schemes such as OFDM, CDMA and TDMA. OTFS converts the fading, time-varying wireless channel into
Anton Monk +3 more
openaire +2 more sources
OFDM aided space-time shift keying for dispersive downlink channels [PDF]
, 2012 The performance of a Space-Time Shift Keying (STSK) scheme was shown to degrade in frequency-selective fading channels. Hence, we propose Orthogonal Frequency Division Multiplexing (OFDM) combined with STSK for frequency-selective broadband channels ...
Mohammad Ismat Kadir +9 more
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IEEE Access, 2023 Orthogonal time frequency space (OTFS) has emerged as a promising modulation for next-generation wireless systems. This two-dimensional (2D) modulation has the inherent capability of providing uninterrupted connectivity and improved performance in a high-
Mahmudul Hasan Abid +2 more
doaj +1 more source
Orthogonal Time Frequency Space Modulation
CoRR, 2018 13 pages, 9 ...
Ronny Hadani +10 more
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Autoencoder-Based Enhanced Orthogonal Time Frequency Space Modulation
IEEE 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 +2 more sources
Downlink Steered Space-Time Spreading For Multi-Carrier Transmission Over Frequency Selective Channels [PDF]
, 2008 This paper presents a novel amalgam of Steered Space-Time Spreading (SSTS) and Orthogonal Frequency Division Multiple Access (OFDMA) designed for attaining both spatial diversity gain and beamforming gain for transmission over OFDM-symbol-invariant ...
Mohammed El-Hajjar +5 more
core +1 more source
The Orthogonal Time Frequency Space (OTFS) Technique In 6G Wireless Communications [PDF]
BIO Web of ConferencesThe orthogonal time-frequency space (OTFS) technique is a potential waveform modulation method that modulates data in the delaydoppler (DD) domain. OTFS differs from traditional multiplexing techniques by utilizing two-dimensional modulation to switch ...
Ramadhan Ali J., TaeiZadeh Ali
doaj +1 more source
Secrecy analysis for orthogonal time frequency space technique based LEO satellite communication
Tongxin xuebao, 2021 In order to improve the security performance of low earth orbit (LEO) satellite downlink communication system, a cooperative UAV was employed to send jamming signals against the eavesdroppers.In particular, the downlink transmission was based on the ...
Zan LI +4 more
doaj +2 more sources
Frequency-domain precoding for single carrier frequency-division multiple access [PDF]
, 2009 At present there is considerable interest in the use of single carrier frequency-division multiple access. This interest is justified by the inherent single carrier structure of the SC-FDMA scheme, which is more robust against phase noise and has a lower
Nix, AR, Noune, MB
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