This paper addresses the energy consumption concern of LPWAN by proposing an extension for the LoRa modulation. Conventional LoRa encodes data in the frequency shift of a chirp, our extension consists in encoding additional data in the phase- shift using the PSK modulation, giving rise to the PSK-LoRa. Our motivation is to encode more data per unit of time without performance degradation, such that we have a more energy efficient system. In order to assess the performance of PSK-LoRa, we derive approximate bit error rate and packet error rate expressions, and then we compare against simulation. For instance, both analytical and numerical outcomes demonstrate that QPSK-LoRa has no performance loss in comparison to LoRa, indicating the feasibility of the new scheme.
|Title of host publication
|2019 IEEE 89th Vehicular Technology Conference, VTC Spring 2019 - Proceedings
|Institute of Electrical and Electronics Engineers Inc.
|Published - Apr 2019
|89th IEEE Vehicular Technology Conference, VTC Spring 2019 - Kuala Lumpur, Malaysia
Duration: Apr 28 2019 → May 1 2019
|IEEE Vehicular Technology Conference
|89th IEEE Vehicular Technology Conference, VTC Spring 2019
|4/28/19 → 5/1/19
ASJC Scopus subject areas
- Computer Science Applications
- Electrical and Electronic Engineering
- Applied Mathematics