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Lora-net / sx1302_hal

SX1302/SX1303 Hardware Abstraction Layer and Tools (packet forwarder...)
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Update firmware to V2 #110

Closed jumanamirza closed 2 weeks ago

jumanamirza commented 11 months ago

1-I am sending LR-FHSS packets using SX126x and I am trying to decode packets using this gateway "SX1302CSS915GW1". 2-On this application note, https://www.mouser.com/pdfDocs/AN1200-64_LR-FHSS_system_performance_V1_2.pdf, you said "LR-FHSS demodulation can be achieved by all V2 gateways with the applicable firmware update". 3-This code latest release is [v2.1.0]. Even that the current release of MCU is v1.0.0.

So, is this code able to demodulate LR-FHSS packets? or should i update MCU to v2? and how can i do that?

Thanks

mcoracin commented 11 months ago

Hello, The sx1302 gateways cannot receive LR-FHSS packets. It is not a matter of the MCU version. The refered "V2 gateways" is a specific gateway design with sx1301 for LoRa, and an additional FPGA+DSP for LR-FHSS demodulation. But this gateway design is not publicly available. You need to contact semtech support for more information: support@semtech.com Best regards, Michael

jumanamirza commented 11 months ago

Thanks for your replay and clarification. I do not need to know or access the design and just need to run the executable, would that be possible?

mcoracin commented 11 months ago

The issue is with the hardware, the gateway you have does not have the capability to demodulate LR-FHSS.

jumanamirza commented 11 months ago

Thank you for confirming that. You saved my time. One more question please, is there any gateway that is commercially available and can decode LR-FHSS packets?

mcoracin commented 11 months ago

Hello, unfortunately today I don't know about a commercially available gateway that supports LR-FHSS. I know that Cisco and Kerlink at least have gateways capable of supporting it (V2 designs), but they do not provide the feature.

jumanamirza commented 11 months ago

Thank you so much. Appreciate your help.

jumanamirza commented 6 months ago

Dear Coracin,

Hope this message finds you well. First, I want to thank you again for your help when we were starting to work on LR-FHSS. I am writing to you with a quick update that we have released our software implementation of an LR-FHSS receiver at

https://github.com/jumanamirza/LR-FHSS-receiver

Our receiver can detect and decode packets transmitted by a real LR-FHSS transmitter (SX1261). More information can be found in our report at

https://arxiv.org/abs/2312.13981

Our findings confirm that LR-FHSS achieves high network capacity. To our best knowledge, except Semtech, ours is the first work that obtains results with real-world packet traces.

Please feel free to let me know if you have any questions.

Best regards, Jumana