Supported: DSC - DCC Sensitivity Control and TAC - Transmit Access Control. about artery HOT 2 CLOSED

I no longer remember the original source, but DSC is considered unfair AFAIK. Just imagine that one vehicle sets the threshold at -80 dBm and another at -70 dBm: The station with the -70 dBm threshold will ignore all those receptions between -80 and -70 dBm, which don't contribute to the channel busy ratio (CBR) then. Consequently, this station has a lower CBR and thus fewer transmission restrictions, though the channel is equally congested.
Thus, I never had a big interest in DSC. However, it could be implemented by modifying the CBR calculations based on power levels, see PowerLevelRx.

TAC is simply a queueing discipline, and the one described in the (old) ETSI DCC specification does not look smart to me at all. I guess that's also why it was dropped later on. There are transmit queues in Vanetza, though.

from artery.

Hello @riebl

Sorry for this very late reply. I see the point now.

Thank you for your reply.

from artery.