| Autor: |
Hang LONG, Sen WANG, Linfei XU, Yinhua JIA, Lu DAI |
| Jazyk: |
čínština |
| Rok vydání: |
2021 |
| Předmět: |
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| Zdroj: |
Dianxin kexue, Vol 37, Pp 57-63 (2021) |
| Druh dokumentu: |
article |
| ISSN: |
1000-0801 |
| DOI: |
10.11959/j.issn.1000-0801.2021221 |
| Popis: |
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. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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