Xu, T;
Darwazeh, I;
(2018)
Half-Sinc Waveform Design for Narrowband IoT.
In:
2018 IEEE 29th Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC).
IEEE
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Abstract
Narrowband Internet of Things (NB-IoT) is a cellular based IoT technique, which can send messages at a long distance using repetitive transmission and single tone frequency hopping. However, retuning of the RF frontend for each narrowband hop could cause frequency offset. Since each tone is shaped by a sinc pulse, when combining tones into a complete signal at the receiver, the side lobe of the sinc pulse would result in significant signal interference in the frequency offset condition. In this work, we propose a half-sinc (HS) waveform for uplink channels via cutting half band using the Hilbert transform to intentionally reserve a frequency offset protection gap. It is verified that the halfsinc waveform can tolerate up to 100% frequency offset via simulation and can practically remove the half side signal band in a software defined IoT platform.
| Type: | Proceedings paper |
|---|---|
| Title: | Half-Sinc Waveform Design for Narrowband IoT |
| Event: | IEEE 29th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC), 9-12 September 2018, Bologna, Italy |
| Location: | Bologna, Italy |
| Dates: | 09 September 2018 - 12 September 2018 |
| ISBN-13: | 978-1-5386-6009-6 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1109/PIMRC.2018.8580971 |
| Publisher version: | https://doi.org/10.1109/PIMRC.2018.8580971 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Internet of Things , Silicon , Narrowband , Interference , Transforms , Electrical engineering |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10054530 |
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