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tleifight
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Posts: 3
Joined: Fri Feb 07, 2025 10:05 am

LoRaWAN Driver CSMA Support

Wed Mar 05, 2025 11:00 am

Hello,

is the LoraWAN driver able to implement CSMA with the SX126x?
 
denissMT
MikroTik Support
MikroTik Support
Posts: 60
Joined: Wed May 26, 2021 12:00 pm

Re: LoRaWAN Driver CSMA Support

Tue Mar 11, 2025 9:13 am

Hello!
Per the description, "CSMA" looks similar to our "Listen Before Talk" implementation.

Our LoRa gateways support LBT:
https://help.mikrotik.com/docs/spaces/R ... Properties
lbt-enabled (yes | no; Default: no) -> Whether gateway should use LBT (Listen Before Talk) protocol.
listen-time (integer [0us..4294967295us]; Default: 5000us) -> Time in microseconds to track RSSI before TX (used when lbt-enabled=yes).
rssi-threshold (integer [-32,768 .. 32,767]; Default: -65dB) -> RSSI value to determine whether forwarder may use specific channel to talk. If RSSI value is below rssi-threshold, channel could be used (used when lbt-enabled=yes).
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In other words, the gateway will not send out anything if the channel is "reserved/used".