In LoRa (Long Range), when a collision occurs in the network, each end-device has to retransmit its colliding frame. This reduces the throughput, and increases the energy consumption of the end-devices and the delay of the frames. In this paper, we propose an algorithm to decode colliding synchronized LoRa signals and thus improve the overall performance of the network. Indeed, we use successive transmissions of bitmaps by the end-devices to determine the correct symbols of each colliding frame, instead of retransmitting the whole frames. Simulation results show that our algorithm is able to significantly improve the overall throughput of LoRaWAN, and to decrease the energy consumption and the delay of the transmitters.
Efficient Decoding Of Synchronized Colliding Lora Signals
2020-05-01
138659 byte
Conference paper
Electronic Resource
English
Reception of LoRa Signals From LEO Satellites
IEEE | 2019
|British Library Conference Proceedings | 2005
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