Study of IEEE 802.11 module in OMNeT++/INET

How to install INET project
https://www.youtube.com/watch?v=MHfMLJ0apHA


QoS related parameters:

src/linklayer/ieee80211/mac/Ieee80211Mac.ned
    double TXOP0 @unit(s) = default(0s); // BK
    double TXOP1 @unit(s) = default(0s); // BE
    double TXOP2 @unit(s) = default(3.008ms); // VI
    double TXOP3 @unit(s) = default(1.504ms); // VO