Occupancy-balancing downlink transmission for enhancing scalability of LoRa networks

LoRa/LoRaWAN is growing rapidly as an underlying technology for the Internet of Things because of its long-range connectivity and low power. However, its limited scalability, owing to spread spectrum–based modulation and contention-based medium access control, impedes its use in emerging massive app...

Full description

Bibliographic Details
Main Authors: Cheonyong Kim, Joobum Kim, Jaiseung Kwak, Kiwook Kim, Woojin Seok
Format: Article
Language:English
Published: SAGE Publishing 2020-12-01
Series:International Journal of Distributed Sensor Networks
Online Access:https://doi.org/10.1177/1550147720979279
id doaj-28ce6f92f0d845298ac8866b0d01609d
record_format Article
spelling doaj-28ce6f92f0d845298ac8866b0d01609d2020-12-12T06:03:26ZengSAGE PublishingInternational Journal of Distributed Sensor Networks1550-14772020-12-011610.1177/1550147720979279Occupancy-balancing downlink transmission for enhancing scalability of LoRa networksCheonyong Kim0Joobum Kim1Jaiseung Kwak2Kiwook Kim3Woojin Seok4Korea Institute of Science and Technology Information, Daejeon, KoreaMiddle Georgia State University, Macon, GA, USAKorea Institute of Science and Technology Information, Daejeon, KoreaKorea Institute of Science and Technology Information, Daejeon, KoreaKorea Institute of Science and Technology Information, Daejeon, KoreaLoRa/LoRaWAN is growing rapidly as an underlying technology for the Internet of Things because of its long-range connectivity and low power. However, its limited scalability, owing to spread spectrum–based modulation and contention-based medium access control, impedes its use in emerging massive applications. In this study, we propose a downlink transmission scheme for enhancing the scalability of LoRa networks. The proposed scheme consists of two mechanisms. First, a modulation parameter is adjusted using the different transmission power limitations between the gateways and end devices to reduce downlink duration. Second, the timing of downlink traffic is selected based on uplink traffic concentration analysis. The proposed scheme reduces the uplink failure, and consequently, allows more end devices to participate in the network. The simulation results show that the proposed scheme is superior to the standard protocol in terms of the packet delivery ratio.https://doi.org/10.1177/1550147720979279
collection DOAJ
language English
format Article
sources DOAJ
author Cheonyong Kim
Joobum Kim
Jaiseung Kwak
Kiwook Kim
Woojin Seok
spellingShingle Cheonyong Kim
Joobum Kim
Jaiseung Kwak
Kiwook Kim
Woojin Seok
Occupancy-balancing downlink transmission for enhancing scalability of LoRa networks
International Journal of Distributed Sensor Networks
author_facet Cheonyong Kim
Joobum Kim
Jaiseung Kwak
Kiwook Kim
Woojin Seok
author_sort Cheonyong Kim
title Occupancy-balancing downlink transmission for enhancing scalability of LoRa networks
title_short Occupancy-balancing downlink transmission for enhancing scalability of LoRa networks
title_full Occupancy-balancing downlink transmission for enhancing scalability of LoRa networks
title_fullStr Occupancy-balancing downlink transmission for enhancing scalability of LoRa networks
title_full_unstemmed Occupancy-balancing downlink transmission for enhancing scalability of LoRa networks
title_sort occupancy-balancing downlink transmission for enhancing scalability of lora networks
publisher SAGE Publishing
series International Journal of Distributed Sensor Networks
issn 1550-1477
publishDate 2020-12-01
description LoRa/LoRaWAN is growing rapidly as an underlying technology for the Internet of Things because of its long-range connectivity and low power. However, its limited scalability, owing to spread spectrum–based modulation and contention-based medium access control, impedes its use in emerging massive applications. In this study, we propose a downlink transmission scheme for enhancing the scalability of LoRa networks. The proposed scheme consists of two mechanisms. First, a modulation parameter is adjusted using the different transmission power limitations between the gateways and end devices to reduce downlink duration. Second, the timing of downlink traffic is selected based on uplink traffic concentration analysis. The proposed scheme reduces the uplink failure, and consequently, allows more end devices to participate in the network. The simulation results show that the proposed scheme is superior to the standard protocol in terms of the packet delivery ratio.
url https://doi.org/10.1177/1550147720979279
work_keys_str_mv AT cheonyongkim occupancybalancingdownlinktransmissionforenhancingscalabilityofloranetworks
AT joobumkim occupancybalancingdownlinktransmissionforenhancingscalabilityofloranetworks
AT jaiseungkwak occupancybalancingdownlinktransmissionforenhancingscalabilityofloranetworks
AT kiwookkim occupancybalancingdownlinktransmissionforenhancingscalabilityofloranetworks
AT woojinseok occupancybalancingdownlinktransmissionforenhancingscalabilityofloranetworks
_version_ 1724385752047943680