Results 151 to 160 of about 823 (178)
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Orthogonal Time Frequency Space (OTFS) With Dual-Mode Index Modulation
IEEE Wireless Communications Letters, 2021Orthogonal 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 0004 +3 more
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OTFS-SCMA: A Code-Domain NOMA Approach for Orthogonal Time Frequency Space Modulation
IEEE Transactions on Communications, 2021Orthogonal 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
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Doppler Resilient Orthogonal Time-Frequency Space (OTFS) Systems Based on Index Modulation
2020 IEEE 91st Vehicular Technology Conference (VTC2020-Spring), 2020High 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.
Yu Liang +3 more
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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
Han Yan, Mao Wang 0001
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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
Han Yan, Mao Wang 0001
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Error Performance of Orthogonal Time Frequency Space (OTFS) Modulation
2019 IEEE International Conference on Communications Workshops (ICC Workshops), 2019Orthogonal 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 +2 more
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Orthogonal Time Frequency Space (OTFS) modulation for millimeter-wave communications systems
2017 IEEE MTT-S International Microwave Symposium (IMS), 2017Due to the increased demand for data rate, flexibility, and reliability of 5G cellular systems, new modulation formats need to be considered. A recently proposed scheme, Orthogonal Time Frequency Space (OTFS), offers various advantages in particular in environments with high frequency dispersion.
R. Hadani +8 more
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2022 IEEE 33rd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC), 2022 The development of future railway systems is contingent on the evolution of wireless communications technologies and their ability to serve more sophisticated use cases.
Leandro Miguel Wong Lopez +1 more
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Space-Time Shift Keying Aided OTFS Modulation for Orthogonal Multiple Access
IEEE Transactions on Communications, 2023 Space-time shift keying-aided orthogonal time frequency space modulation-based multiple access (STSK-OTFSMA) is proposed for reliable uplink transmission in high- Doppler scenarios. As a beneficial feature of our STSK-OTFSMAsystem, extra information bits
Zeping Sui, Hongming Zhang, Sumei Sun
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2021 IEEE 6th International Conference on Signal and Image Processing (ICSIP), 2021
Han Yan, Wanpeng Yu
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Han Yan, Wanpeng Yu
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