OTFS技术研究现状与展望

doi:10.11959/j.issn.1000-0801.2021221

Abstract

Abstract:

Recently, a new multi-carrier modulation technique termed orthogonal time frequency space (OTFS) was proposed.In the OTFS modulation, the data symbols are modulated at the delay-Doppler plane and spread on all the time-frequency resource elements with the inverse symplectic finite Fourier transform.Compared with the conventional orthogonal frequency division multiplexing (OFDM) technique, the OTFS modulation performs better in the time-varying and frequency-selective channel.The state of art of OTFS was reviewed and summarized.Simulation results were presented to demonstrate the performance advantage of OTFS over the conventional OFDM.The remainder problems of multi-accessing, channel estimation and linear equalization in OTFS was given.The application of OTFS signal in joint Radar and communication system was also analyzed.

Key words: multi-carrier, Doppler frequency shift, orthogonal frequency division multiplexing

CLC Number:

TP393

Hang LONG, Sen WANG, Linfei XU, Yinhua JIA, Lu DAI. OTFS technology research and prospect[J]. Telecommunications Science, 2021, 37(9): 57-63.

Figures/Tables 7

References 38

[1]	IMT-2020(5G)推进组. 5G愿景与需求白皮书[R]. 2014.
	IMT-2020 (5G) Promotion Group. White paper on 5G vision and demand[R]. 2014.
[2]	赵亚军, 郁光辉, 徐汉青 . 6G移动通信网络:愿景、挑战与关键技术[J]. 中国科学:信息科学, 2019,49(8): 963-987.
	ZHAO Y J , YU G H , XU H Q . 6G mobile communication net-works:vision,challenges,and key technologies[J]. Scientia Si-nica (Informationis), 2019,49(8): 963-987.
[3]	陈亮, 余少华 . 6G 移动通信发展趋势初探(特邀)[J]. 光通信研究, 2019(4): 1-8.
	CHEN L , YU S H . Preliminary study on the trend of 6G mobile communication[J]. Study on Optical Communications, 2019(4): 1-8.
[4]	TIWARI S , DAS S S , RANGAMGARI V . Low complexity LMMSE receiver for OTFS[J]. IEEE Communications Letters, 2019,23(12): 2205-2209.
[5]	HADANI R , RAKIB S S . OTFS methods of data channel characterization and uses thereof:US9444514[P].2016-09-13.
[6]	HADANI R , RAKIB S , TSATSANIS M ,et al. Orthogonal time frequency space modulation[C]// 2017 IEEE Wireless Communications and Networking Conference (WCNC). Piscataway:IEEE Press, 2017: 1-6.
[7]	HADANI R , MONK A . OTFS—a novel modulation technique meeting 5G high mobility and massive MIMO challenges[R]. 2017.
[8]	李伶珺 . 抗多普勒频移正交时频空系统性能分析与优化[D]. 成都:西南交通大学, 2019.
	LI L J . Performance analysis and optimizition of Doppler resi-lient orthogonal time frequency space ststems[D]. Chengdu:Southwest Jiaotong University, 2019.
[9]	SURABHI G D , AUGUSTINE R M , CHOCKALINGAM A . Peak-to-average power ratio of OTFS modulation[J]. IEEE Communications Letters, 2019,23(6): 999-1002.
[10]	NIMR A , CHAFII M , MATTHE M ,et al. Extended GFDM framework:OTFS and GFDM comparison[C]// 2018 IEEE Global Communications Conference (GLOBECOM). Piscataway:IEEE Press, 2018: 1-6.
[11]	REZAZADEHREYHANI A , FARHANG A , JI M Y ,et al. Analysis of discrete-time MIMO OFDM-based orthogonal time frequency space modulation[C]// 2018 IEEE International Conference on Communications (ICC). Piscataway:IEEE Press, 2018: 1-6.
[12]	FARHANG A , REZAZADEHREYHANI A , DOYLE L E ,et al. Low complexity modem structure for OFDM-based orthogonal time frequency space modulation[J]. IEEE Wireless Communi-cations Letters, 2018,7(3): 344-347.
[13]	RAVITEJA P , HONG Y , VITERBO E ,et al. Practical pulse-shaping waveforms for reduced-cyclic-prefix OTFS[J]. IEEE Transactions on Vehicular Technology, 2019,68(1): 957-961.
[14]	TIWARI S , DAS S S . Circularly pulse-shaped orthogonal time frequency space modulation[J]. Electronics Letters, 2020,56(3): 157-160.
[15]	HOSSAIN M N , SUGIURA Y , SHIMAMURA T ,et al. Waveform design of low complexity WR-OTFS system for the OOB power reduction[C]// 2020 IEEE Wireless Communications and Networking Conference Workshops (WCNCW). Piscataway:IEEE Press, 2020: 1-5.
[16]	MARSALEK R , BLUMENSTEIN J , PROKES A ,et al. Orthogonal time frequency space modulation:pilot power allocation and nonlinear power amplifiers[C]// 2019 IEEE International Symposium on Signal Processing and Information Technology (ISSPIT). Piscataway:IEEE Press, 2019: 1-4.
[17]	GAO S , ZHENG J P . Peak-to-average power ratio reduction in pilot-embedded OTFS modulation through iterative clipping and filtering[J]. IEEE Communications Letters, 2020,24(9): 2055-2059.
[18]	NAVEEN C , SUDHA V . Peak-to-Average power ratio reduction in OTFS modulation using companding technique[C]// 2020 5th International Conference on Devices,Circuits and Systems (ICDCS). Piscataway:IEEE Press, 2020: 140-143.
[19]	DING Z G , SCHOBER R , FAN P Z ,et al. OTFS-NOMA:an efficient approach for exploiting heterogenous user mobility profiles[J]. IEEE Transactions on Communications, 2019,67(11): 7950-7965.
[20]	CHATTERJEE A , RANGAMGARI V , TIWARI S ,et al. Nonorthogonal multiple access with orthogonal time–frequency space signal transmission[J]. IEEE Systems Journal, 2021,15(1): 383-394.
[21]	SURABHI G D , AUGUSTINE R M , CHOCKALINGAM A . Multiple access in the delay-Doppler domain using OTFS modulation[EB]. 2019.
[22]	KHAMMAMMETTI V , MOHAMMED S K . OTFS-based multiple-access in high Doppler and delay spread wireless channels[J]. IEEE Wireless Communications Letters, 2019,8(2): 528-531.
[23]	AUGUSTINE R M , CHOCKALINGAM A . Interleaved time-frequency multiple access using OTFS modulation[C]// 2019 IEEE 90th Vehicular Technology Conference (VTC2019-Fall). Piscataway:IEEE Press, 2019: 1-5.
[24]	RAKIB S , HADANI R . Multiple access in wireless telecommunications system for high-mobility applications:US9722741[P].2017-08-01.
[25]	刘天俊 . 基于正交时频空(OTFS)系统的导频序列设计与信道估计[D]. 成都:西南交通大学, 2019.
	LIU T J . On pilot sequence design and channel estimation in OTFS system[D]. Chengdu:Southwest Jiaotong University, 2019.
[26]	SHEN W Q , DAI L L , AN J P ,et al. Channel estimation for orthogonal time frequency space (OTFS) massive MIMO[J]. IEEE Transactions on Signal Processing, 2019,67(16): 4204-4217.
[27]	RAVITEJA P , PHAN K T , HONG Y ,et al. Embedded delay-Doppler channel estimation for orthogonal time frequency space modulation[C]// 2018 IEEE 88th Vehicular Technology Conference (VTC-Fall). Piscataway:IEEE Press, 2018: 1-5.
[28]	RAVITEJA P , PHAN K T , HONG Y . Embedded pilot-aided channel estimation for OTFS in delay–Doppler channels[J]. IEEE Transactions on Vehicular Technology, 2019,68(5): 4906-4917.
[29]	GAUDIO L , KOBAYASHI M , BISSINGER B ,et al. Performance analysis of joint radar and communication using OFDM and OTFS[C]// 2019 IEEE International Conference on Communications Workshops (ICC Workshops). Piscataway:IEEE Press, 2019: 1-6.
[30]	GAUDIO L , KOBAYASHI M , CAIRE G ,et al. On the effectiveness of OTFS for joint radar parameter estimation and communication[J]. IEEE Transactions on Wireless Communications, 2020,19(9): 5951-5965.
[31]	SURABHI G D , CHOCKALINGAM A . Low-complexity linear equalization for OTFS modulation[J]. IEEE Communications Letters, 2020,24(2): 330-334.
[32]	RAVITEJA P , PHAN K T , HONG Y ,et al. Interference cancellation and iterative detection for orthogonal time frequency space modulation[J]. IEEE Transactions on Wireless Communications, 2018,17(10): 6501-6515.
[33]	LI L J , LIANG Y , FAN P Z ,et al. Low complexity detection algorithms for OTFS under rapidly time-varying channel[C]// 2019 IEEE 89th Vehicular Technology Conference (VTC2019-Spring). Piscataway:IEEE Press, 2019: 1-5.
[34]	ZHANG M C , WANG F G , YUAN X J ,et al. 2D structured turbo compressed sensing for channel estimation in OTFS systems[C]// 2018 IEEE International Conference on Communication Systems (ICCS). Piscataway:IEEE Press, 2018: 45-49.
[35]	THAJ T , VITERBO E . Low complexity iterative rake detector for orthogonal time frequency space modulation[C]// 2020 IEEE Wireless Communications and Networking Conference (WCNC). Piscataway:IEEE Press, 2020: 1-6.
[36]	YUAN W J , WEI Z Q , YUAN J H ,et al. A simple variational Bayes detector for orthogonal time frequency space (OTFS) modulation[J]. IEEE Transactions on Vehicular Technology, 2020,69(7): 7976-7980.
[37]	LI L , WEI H , HUANG Y ,et al. A simple two-stage equalizer with simplified orthogonal time frequency space modulation over rapidly time-varying channels[EB]. 2017.
[38]	ZEMEN T , HOFER M , LOESCHENBRAND D . Low-complexity equalization for orthogonal time and frequency signaling (OTFS)[EB]. 2017.

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载频	4 GHz
M	120
N	12
子载波间隔	OFDM15：15 kHz
	OFDM30：30 kHz
	OTFS：15 kHz
信道模型	两径信道，[0,﹣1.5]dB，[0,2.51]μs
编码调制	QPSK，LDPC，码率0.188 5

OTFS technology research and prospect

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