Results 11 to 20 of about 49,696 (296)
Noncoherent Orthogonal Time Frequency Space Modulation [PDF]
IEEE Transactions on Wireless CommunicationsThe 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
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Orthogonal Time Frequency Space Modulation—Part II: Transceiver Designs
IEEE Communications Letters, 2023 5 pages, 5 figures, submitted to IEEE Communications ...
Shuangyang Li +2 more
exaly +3 more sources
Nonorthogonal Multiple Access With Orthogonal Time–Frequency Space Signal Transmission [PDF]
IEEE Systems Journal, 2021 12 pages, 4 figures.
Aritra Chatterjee 0002 +3 more
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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
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Non-Orthogonal Time-Frequency Space Modulation
CoRR, 2023 This paper proposes a Time-Frequency Space Transformation (TFST) to derive non-orthogonal bases for modulation techniques over the delay-doppler plane. A family of Overloaded Delay-Doppler Modulation (ODDM) techniques is proposed based on the TFST, which enhances flexibility and efficiency by expressing modulated signals as a linear combination of ...
Mahdi Shamsi, Farokh Marvasti
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Orthogonal Time Frequency Space Modulation [PDF]
2017 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
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Xibei Gongye Daxue Xuebao, 2021 Compared with the orthogonal frequency division multiplexing (OFDM) modulation, the orthogonal time frequency space(OTFS) modulation has a lower peak-to-average power ratio. It can effectively resist the time selective fading caused by the Doppler effect
ZHANG Yang +4 more
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Super-Orthogonal Block Codes with Multichannel Equalisation and OFDM in Frequency Selective Fading
EURASIP Journal on Wireless Communications and Networking, 2010 Super-orthogonal block codes in space-time domain (i.e., Super-orthogonal space-time trellis codes (SOSTTCs)) were initially designed for frequency nonselective (FNS) channels but in frequency selective (FS) channels these super-orthogonal block codes ...
Sokoya O, Maharaj BT
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IEEE Photonics Journal, 2023 A doppler delay-time frequency (DD-TF) cross-domain high-security transmission scheme based on orthogonal time frequency space (OTFS) is proposed, which is compatible with high-speed and large-capacity optical transmission systems.
Zhiruo Guo +9 more
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Co-Efficient Vector Based Differential Distributed Quasi-Orthogonal Space Time Frequency Coding
Sensors, 2023 Distributed space time frequency coding (DSTFC) schemes address problems of performance degradation encountered by cooperative broadband networks operating in highly mobile environments.
Nnamdi Nwanekezie +3 more
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