What advantages does WLAN PRP offer?
The functions of PRP offer you significant advantages for your WLAN. In practice, PRP improves the 3 most important quality indicators for a network: Jitter, latency and packet loss.
With PRP, the receivers will accept and forward the first copy of the PRP packets and discard those that arrive later. Because the devices always forward the first incoming packet, latency is reduced. In practice, significant improvements were seen to average and maximum jitter.
Like Ethernet, WLAN is designed to be a shared medium. Within a single WLAN connection, the devices hold back packets if the medium is busy. Because the devices with PRP transport the data via 2 different WLANs, in effect 2 media are available thanks to frequency division.
Because the devices send each packet twice, PRP can to some extent compensate for unsystematic packet loss. As long as the receiver receives one of the packets, then communication was successful. Under certain circumstances there is no need to retransmit lost packets, which also positively affects jitter.
