DG-LoRa: Deterministic Group Acknowledgment Transmissions in LoRa Networks for Industrial IoT Applications
In this paper, we propose a novel MAC protocol, called DG-LoRa, for improving scalability in low power wide area networks. DG-LoRa is backward compatible with legacy LoRaWAN and adds new features, such as group acknowledgment transmissions in the time-synchronized frame structure that supports deter...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2021-02-01
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| Series: | Sensors |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1424-8220/21/4/1444 |
| _version_ | 1797395994103513088 |
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| author | Junhee Lee Young Seog Yoon Hyun Woo Oh Kwang Roh Park |
| author_facet | Junhee Lee Young Seog Yoon Hyun Woo Oh Kwang Roh Park |
| author_sort | Junhee Lee |
| collection | DOAJ |
| description | In this paper, we propose a novel MAC protocol, called DG-LoRa, for improving scalability in low power wide area networks. DG-LoRa is backward compatible with legacy LoRaWAN and adds new features, such as group acknowledgment transmissions in the time-synchronized frame structure that supports determinism on channel access. In DG-LoRa, the number of responses to data frames that are transmitted from end devices is maximized by allocating the spreading factor and timeslot in the frame structure. We evaluate the performance of DG-LoRa using the Monte-Carlo simulation and then compare it with the performance of legacy LoRaWAN in terms of data drop rate and the number of retransmissions. Our numerical results show that DG-LoRa supports approximately five times more connections to the LoRa network satisfying a 5% data drop rate. Also, it is observed that DG-LoRa enables low overhead by reducing the number of data frame retransmissions. |
| first_indexed | 2024-03-09T00:44:51Z |
| format | Article |
| id | doaj.art-9763f31283ea432e8bffad8719787473 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-09T00:44:51Z |
| publishDate | 2021-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-9763f31283ea432e8bffad87197874732023-12-11T17:37:06ZengMDPI AGSensors1424-82202021-02-01214144410.3390/s21041444DG-LoRa: Deterministic Group Acknowledgment Transmissions in LoRa Networks for Industrial IoT ApplicationsJunhee Lee0Young Seog Yoon1Hyun Woo Oh2Kwang Roh Park3Industrial IoT Intelligence Research Department, Electronics and Telecommunications Research Institute, Daejeon 34129, KoreaIndustrial IoT Intelligence Research Department, Electronics and Telecommunications Research Institute, Daejeon 34129, KoreaIndustrial IoT Intelligence Research Department, Electronics and Telecommunications Research Institute, Daejeon 34129, KoreaIndustrial IoT Intelligence Research Department, Electronics and Telecommunications Research Institute, Daejeon 34129, KoreaIn this paper, we propose a novel MAC protocol, called DG-LoRa, for improving scalability in low power wide area networks. DG-LoRa is backward compatible with legacy LoRaWAN and adds new features, such as group acknowledgment transmissions in the time-synchronized frame structure that supports determinism on channel access. In DG-LoRa, the number of responses to data frames that are transmitted from end devices is maximized by allocating the spreading factor and timeslot in the frame structure. We evaluate the performance of DG-LoRa using the Monte-Carlo simulation and then compare it with the performance of legacy LoRaWAN in terms of data drop rate and the number of retransmissions. Our numerical results show that DG-LoRa supports approximately five times more connections to the LoRa network satisfying a 5% data drop rate. Also, it is observed that DG-LoRa enables low overhead by reducing the number of data frame retransmissions.https://www.mdpi.com/1424-8220/21/4/1444LoRaWANGACKscalabilitymassive IoT |
| spellingShingle | Junhee Lee Young Seog Yoon Hyun Woo Oh Kwang Roh Park DG-LoRa: Deterministic Group Acknowledgment Transmissions in LoRa Networks for Industrial IoT Applications Sensors LoRaWAN GACK scalability massive IoT |
| title | DG-LoRa: Deterministic Group Acknowledgment Transmissions in LoRa Networks for Industrial IoT Applications |
| title_full | DG-LoRa: Deterministic Group Acknowledgment Transmissions in LoRa Networks for Industrial IoT Applications |
| title_fullStr | DG-LoRa: Deterministic Group Acknowledgment Transmissions in LoRa Networks for Industrial IoT Applications |
| title_full_unstemmed | DG-LoRa: Deterministic Group Acknowledgment Transmissions in LoRa Networks for Industrial IoT Applications |
| title_short | DG-LoRa: Deterministic Group Acknowledgment Transmissions in LoRa Networks for Industrial IoT Applications |
| title_sort | dg lora deterministic group acknowledgment transmissions in lora networks for industrial iot applications |
| topic | LoRaWAN GACK scalability massive IoT |
| url | https://www.mdpi.com/1424-8220/21/4/1444 |
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