How to calculate the received power or SNR based on rssi value in the RxJanusFrameNtf?

Question

When I send a Jauns frame between two nodes, at the receiving side in RxJanusFrameNtf there is rssi value, How to calculate the received power or the SNR using rssi?

Answer 1

The rssi value is good for making signal strength comparisons between different nodes. The rssi value in typically given in dB, but with an arbitrary reference. You'd need a noise measurement in dB with the same reference to convert rssi to SNR -- something that is specific to the implementation of a modem or simulation model. For example, Subnero modems publish the noise value in the same units (but potentially a larger bandwidth) as phy.noise .