Multi-Gateway Demodulation in LoRa

Guitton, Alexandre; Kaneko, Megumi

doi:10.1109/globecom48099.2022.10001547

Cited by 2 publications

(3 citation statements)

References 8 publications

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“…These factors emphasize the need for alternate solutions that offer greater efficiency, such as systems built on LoRa technology. Recently, a large number of studies have focused on the capabilities and limitations of LoRaWAN multi-gateway [9][10][11][12][13]. In [9], the scalability of LoRa communication for multimode can be improved by collaborating gateways.…”

Section: Introductionmentioning

confidence: 99%

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Implementing interoperable multi-gateway LoRaWAN for efficient maritime tracking systems

Sagala,

Hutapea,

Sinaga

et al. 2024

Eureka: PE

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Determining the precise location of a ship navigating on a lake is of utmost importance for various logistical and safety reasons. However, this task can become particularly challenging when operating in regions with limited or no access to the Internet. Fortunately, advancements in technology, specifically the Internet of Things (IoT) utilizing Low Power Wide Area Network (LPWAN) technology, have offered a robust solution to address this issue. LPWAN technology enables long-range data transmission without being reliant on traditional internet connectivity. In the context of our research, a LoRaWAN end node is employed equipped with LGT92, along with three gateways sourced from two different vendors, to effectively track the real-time position of a ship. To gauge the effectiveness of our system, let’s conduct experiments and obtained significant results. One noteworthy finding was that the communication range between one of the gateways and the LoRaWAN end node extended to 2.5 kilometers when utilizing the RAK 7243 gateway. In contrast, the Dragino LG308 gateway impressively stretched this range to 5.7 kilometers. All three gateways to broaden the tracking coverage area and ensure comprehensive monitoring are strategically deployed. Our research's primary focus was tracking a ship's journey spanning 16 kilometers from Balige to Onanrunggu port. Throughout our experimentation, it is confirmed that the ship's precise coordinates, including latitude and longitude, were accurately transmitted from the end node on the ship to the designated gateway. This crucial position data was then seamlessly transmitted to the cloud. This real-time tracking capability proved invaluable, allowing for constant oversight and decision-making support during the ship's journey

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Section: Introductionmentioning

confidence: 99%

“…Recently, a large number of studies have focused on the capabilities and limitations of LoRaWAN multi-gateway [9][10][11][12][13]. In [9], the scalability of LoRa communication for multimode can be improved by collaborating gateways. The implementation of vessel tracking utilizing multiple gateways was carried out as described in [10].…”

Section: Introductionmentioning

confidence: 99%

Implementing interoperable multi-gateway LoRaWAN for efficient maritime tracking systems

Sagala,

Hutapea,

Sinaga

et al. 2024

Eureka: PE

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“…Furthermore, the proposed assignment optimization is suitable for a realistic LoRa environment, as it accounts for both inter-SF and co-SF interferences, in the collision overlap time model [3]. Note that, while [8] proposes two heuristic approaches to increase the number of demodulated frames -one where each GW randomly ignores incoming frames (targeted for small SF), and one where each GW exchanges control messages with other GWs (targeted for large SF)-, the proposed method here enables to maximize the number of demodulated transmissions in a centralized manner.…”

Section: Introductionmentioning

confidence: 99%

An Auction-Based Assignment Method for LoRa Multi-Gateway Networks

Chen,

Kaneko,

Guitton

2023

ICC 2023 - IEEE International Conference on Communications

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Long Range (LoRa) technology constitutes one of the major enablers of future Internet-of-Things (IoT) applications, such as monitoring of challenged environments and smart buildings. However, crucial issues in the context of multi-gateway LoRa networks have been overlooked. In particular, most existing methods did not consider the stringent constraint of limited number of demodulators at each gateway. Therefore, we devise a gateway selection method for uplink LoRa transmissions, where this limited availability of demodulators is fully considered. We propose an optimization approach based on the auction mechanism, where each IoT device is pre-assigned to a unique gateway, so as to maximize the total amount of demodulated transmissions without redundancy at the network server. Furthermore, a low complexity method is also designed, where devices are partitioned into groups and where auctions are parallelized. Numerical results show that the proposed methods largely outperform benchmark algorithms in terms of the network utility function and sum-rate, while approaching the upper bound performance. The proposed methods are particularly suited to cope with the inherent dynamics of mobile LoRa IoT networks, as highest gains are attained for demodulation latencies in the order of tens to hundreds of milliseconds. 1

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Multi-Gateway Demodulation in LoRa

Cited by 2 publications

References 8 publications

Implementing interoperable multi-gateway LoRaWAN for efficient maritime tracking systems

Implementing interoperable multi-gateway LoRaWAN for efficient maritime tracking systems

An Auction-Based Assignment Method for LoRa Multi-Gateway Networks

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