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Advisor(s)
Abstract(s)
LoRa is actually one of the most popular LPWAN technologies for IoT applications, due to its low-power and long-range transmissions. A single low-cost, single-channel LoRa Gateway is able to cover a large number of End-Devices spread over a wide area. Gateway diversity is traditionally used to reduce the impact of packet losses: adding more Gateways can increase both delivery ratio and goodput, even when using a pure-ALOHA access policy. However, such solution can be cost-expensive and the adoption of control-based medium access strategies, without violating the duty-cycle constraints, can be, in some situations, a better option. In this letter, we compare the effectiveness of Gateway diversity against a medium access protocol with channel reservation. We evaluate if and in which scenarios, relatively to delivery ratio and goodput, in a single communication channel, it is better to add more Gateways to the system (hardware) or adopt a reservation protocol (software) for tackling the scaling-up of the number of End-Devices.
Description
Keywords
LoRa networks Medium access control Multiple-gateway networks Performance evaluation
Citation
FIGUEIREDO, Alexandre; LUÍS, Miguel; ZUQUETE, André – Trading hardware with medium reservation to tackle scalability in low-cost, single-channel LoRa networks. Internet Technology Letters. eISSN 2476-1508. (2021), pp. 1-6.
Publisher
John Wiley & Sons Ltd.