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As far as I know about SNR is the signal to noise ratio or the difference of noise and signal strength, so what I want is SNR value for a signal that a Mobile node will detect from an access point, hence how the noise will put or estimate to calculate the SNR?

While I explored the source codes of INET, I found getSNR() and setSNR(), but I don't know how they work in OMNeT++?

user4786271
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peshraw hama hama
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1 Answers1

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Usually the calculation of the SNR happens in lower layers and is closely related to the propagation model used in your application.

This answer might be helpful: https://stackoverflow.com/a/31728592/4786271

getSNR() and setSNR() sound like function which are used to put information into OMNeT++ packets.

I'd suggest you have a look at Radio.h and Radio.cc. The following functions might be useful:

/** @brief Buffer the frame and update noise levels and snr information */
virtual void handleLowerMsgStart(AirFrame *airframe);

/** @brief Unbuffer the frame and update noise levels and snr information */
virtual void handleLowerMsgEnd(AirFrame *airframe);

/** Sends a message to the upper layer */
virtual void sendUp(AirFrame *airframe);
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user4786271
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  • Thanks for your prompt response,as you mentioned above, I checked the both modules and I cant get my answer, any way the new version of INET 3.0 has been changed many physical layer modules, and through my exploring I found in physical layer folder RadioMedium module that contain the SNIR that a bit deffrent with SNR... – peshraw hama hama Sep 03 '15 at 19:14