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Interference-Free OFDM Embedding of Wake-Up Signals for Low-Power Wake-Up Receivers

Mazloum, Nafiseh LU and Edfors, Ove LU (2019) IEEE International Conference on Communications (ICC) 2019 2019-May.
Abstract

The use of ultra-low power wake-up receivers (WuRx) can significantly reduce idle listening energy cost. To tailor a WuRx scheme to orthogonal frequency division multiplexing (OFDM) based systems, such as LTE-MTC or IEEE 802.11, the wake-up signal (WUS) also needs to follow OFDM principles to avoid interfering with other transmissions in the same shared bandwidth. Here, we address this particular issue and propose an approach where the OFDM transmitter is modified to also transmit WUSs designed for non-coherent low-power WuRxs, on a subset of the carriers, thus embedding the WUS correctly and ensuring orthogonality. The approach is evaluated for different system parameters and its applicability across a wide range of OFDM-based systems... (More)

The use of ultra-low power wake-up receivers (WuRx) can significantly reduce idle listening energy cost. To tailor a WuRx scheme to orthogonal frequency division multiplexing (OFDM) based systems, such as LTE-MTC or IEEE 802.11, the wake-up signal (WUS) also needs to follow OFDM principles to avoid interfering with other transmissions in the same shared bandwidth. Here, we address this particular issue and propose an approach where the OFDM transmitter is modified to also transmit WUSs designed for non-coherent low-power WuRxs, on a subset of the carriers, thus embedding the WUS correctly and ensuring orthogonality. The approach is evaluated for different system parameters and its applicability across a wide range of OFDM-based systems is verified.

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Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
host publication
2019 IEEE International Conference on Communications, ICC 2019 - Proceedings
volume
2019-May
publisher
Institute of Electrical and Electronics Engineers Inc.
conference name
IEEE International Conference on Communications (ICC) 2019
conference location
Shaghai, China
conference dates
2019-05-20 - 2019-05-24
external identifiers
  • scopus:85070226607
ISBN
9781538680889
DOI
10.1109/ICC.2019.8761341
language
English
LU publication?
yes
id
817291be-842c-4a12-969c-ed3efe1f2a05
date added to LUP
2019-08-28 15:22:06
date last changed
2019-09-11 04:23:01
@inproceedings{817291be-842c-4a12-969c-ed3efe1f2a05,
  abstract     = {<p>The use of ultra-low power wake-up receivers (WuRx) can significantly reduce idle listening energy cost. To tailor a WuRx scheme to orthogonal frequency division multiplexing (OFDM) based systems, such as LTE-MTC or IEEE 802.11, the wake-up signal (WUS) also needs to follow OFDM principles to avoid interfering with other transmissions in the same shared bandwidth. Here, we address this particular issue and propose an approach where the OFDM transmitter is modified to also transmit WUSs designed for non-coherent low-power WuRxs, on a subset of the carriers, thus embedding the WUS correctly and ensuring orthogonality. The approach is evaluated for different system parameters and its applicability across a wide range of OFDM-based systems is verified.</p>},
  author       = {Mazloum, Nafiseh and Edfors, Ove},
  isbn         = {9781538680889},
  language     = {eng},
  location     = {Shaghai, China},
  month        = {05},
  publisher    = {Institute of Electrical and Electronics Engineers Inc.},
  title        = {Interference-Free OFDM Embedding of Wake-Up Signals for Low-Power Wake-Up Receivers},
  url          = {http://dx.doi.org/10.1109/ICC.2019.8761341},
  volume       = {2019-May},
  year         = {2019},
}