Energy performance of LR-FHSS: analysis and evaluation

Fuente: arXiv
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Main Authors: Sanchez-Vital, Roger, Casals, Lluís, Heer-Salva, Bartomeu, Vidal, Rafael, Gomez, Carles, Garcia-Villegas, Eduard
Format: Preprint
Published: 2024
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author Sanchez-Vital, Roger
Casals, Lluís
Heer-Salva, Bartomeu
Vidal, Rafael
Gomez, Carles
Garcia-Villegas, Eduard
author_facet Sanchez-Vital, Roger
Casals, Lluís
Heer-Salva, Bartomeu
Vidal, Rafael
Gomez, Carles
Garcia-Villegas, Eduard
contents Long-range frequency hopping spread spectrum (LR-FHSS) is a pivotal advancement in the LoRaWAN protocol that is designed to enhance the network's capacity and robustness, particularly in densely populated environments. Although energy consumption is paramount in LoRaWAN-based end devices, {this is the first study} in the literature, to our knowledge, that models the impact of this novel mechanism on energy consumption. In this article, we provide a comprehensive energy consumption analytical model of LR-FHSS, focusing on three critical metrics: average current consumption, battery lifetime, and energy efficiency of data transmission. The model is based on measurements performed on real hardware in a fully operational LR-FHSS network. While in our evaluation, LR-FHSS can show worse consumption figures than LoRa, we find that with optimal configuration, the battery lifetime of LR-FHSS end devices can reach 2.5 years for a 50 min notification period. For the most energy-efficient payload size, this lifespan can be extended to a theoretical maximum of up to 16 years with a one-day notification interval using a cell-coin battery.
format Preprint
id arxiv_https___arxiv_org_abs_2408_04908
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Energy performance of LR-FHSS: analysis and evaluation
Sanchez-Vital, Roger
Casals, Lluís
Heer-Salva, Bartomeu
Vidal, Rafael
Gomez, Carles
Garcia-Villegas, Eduard
Networking and Internet Architecture
Long-range frequency hopping spread spectrum (LR-FHSS) is a pivotal advancement in the LoRaWAN protocol that is designed to enhance the network's capacity and robustness, particularly in densely populated environments. Although energy consumption is paramount in LoRaWAN-based end devices, {this is the first study} in the literature, to our knowledge, that models the impact of this novel mechanism on energy consumption. In this article, we provide a comprehensive energy consumption analytical model of LR-FHSS, focusing on three critical metrics: average current consumption, battery lifetime, and energy efficiency of data transmission. The model is based on measurements performed on real hardware in a fully operational LR-FHSS network. While in our evaluation, LR-FHSS can show worse consumption figures than LoRa, we find that with optimal configuration, the battery lifetime of LR-FHSS end devices can reach 2.5 years for a 50 min notification period. For the most energy-efficient payload size, this lifespan can be extended to a theoretical maximum of up to 16 years with a one-day notification interval using a cell-coin battery.
title Energy performance of LR-FHSS: analysis and evaluation
topic Networking and Internet Architecture
url https://arxiv.org/abs/2408.04908