Back to Search Start Over

LPWC: Long preamble wake-up communication protocol for a LoRa network

Authors :
Hong, Shengguang
Yao, Fang
Zhang, Fengyun
Ding, Yulong
Yang, Shuang-Hua
Source :
Internet of Things; July 2023, Vol. 22 Issue: 1
Publication Year :
2023

Abstract

LoRa is widely used in various applications, which has gained increasing popularity in the field of Internet of Things (IoT). However, in legacy LoRa protocols, bidirectional communications and low power consumption cannot be achieved simultaneously, hindering the further development of LoRa. In this study, a long preamble wake-up communication (LPWC) protocol is proposed to alleviate the aforementioned issue. This scheme is performed at both sides of communication: (1) LoRa nodes are designed to sleep periodically to save more power; (2) LoRa gateway must send packets with long preamble to maintain the reliability of downlink communication. In addition, an energy model is built to prove that an optimal cycle period exists for LoRa nodes to save more energy. Then we implement simulations to evaluate the performance of the proposed method in various cases. Results show that LPWC outperforms LoRaWAN Class B mode in terms of power conservation and packet latency.

Details

Language :
English
ISSN :
25431536 and 25426605
Volume :
22
Issue :
1
Database :
Supplemental Index
Journal :
Internet of Things
Publication Type :
Periodical
Accession number :
ejs62875964
Full Text :
https://doi.org/10.1016/j.iot.2023.100787