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| Content Provider | IET Digital Library |
|---|---|
| Author | Tiwari, S. Das, S. S. |
| Abstract | Orthogonal time-frequency space (OTFS) modulation is a recently proposed waveform for efficient data transfer in high-speed vehicular scenario. Use of rectangular pulse shape in OTFS results in high out of band (OoB) radiation, which is undesirable for multi-user scenarios. In this work, the authors present a circular pulse shaped framework for OTFS for reducing the OoB. The authors also design a low complexity transmitter for such a system. They argue in favour of orthogonal transmission for low complexity transceiver structure. The authors establish that frequency-localised circulant Dirichlet pulse is one of the possible pulses having this desirable unitary property, which can reduce OoB radiation significantly (by around 50 dB) without any loss in BER. They also show that the proposed pulse-shaped OTFS has a lower peak to average power ratio than conventional OTFS system. |
| Starting Page | 157 |
| Ending Page | 160 |
| Page Count | 4 |
| ISSN | 00135194 |
| Volume Number | 56 |
| e-ISSN | 1350911X |
| Issue Number | Issue 3, Feb (2020) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/el/56/3 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/el.2019.2503 |
| Journal | Electronics Letters |
| Publisher Date | 2019-11-14 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Band Radiation Circular Pulse Shaped Framework Circularly Pulse-shaped Orthogonal Time Frequency Space Modulation Conventional OTFS System Efficient Data Transfer Error Statistics Frequency Division Multiplexing Frequency-localised Circulant Dirichlet Pulse High-speed Vehicular Scenario Low Complexity Transceiver Structure Low Complexity Transmitter Modulation And Coding Method Multiuser Scenario Noise Figure 50.0 DB OFDM Modulation OoB Radiation Orthogonal Time-frequency Space Modulation Orthogonal Transmission OTFS Result Possible Pulses Pulse Shaping Pulse-shaped OTFS Radio Link And Equipment Recently Proposed Waveform Rectangular Pulse Shape Statistics Transceivers |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering |
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