Clement, The best source for the information you seek is the code itself.
Many refinements were made to the IEEE 802.11 radio model channel utilization and neighbor estimator algorithm in 0.9.1. Start with emane/src/models/mac/ieee80211abg/maclayer.cc:722 handleUpstreamPacket(). -- Steven Galgano Adjacent Link LLC www.adjacentlink.com On 04/17/2014 04:13 PM, Clement Kam wrote: > I have been looking at the User Manual to try to figure out how the 802.11 > MAC processes downstream and upstream packets (Figures 9.2-9.4), but a lot of > details are omitted. Specifically, I would like to know how the delays for > downstream packets are computed. It says in Figure 9.4 that the "Channel > Activity Data” is used to compute the Pre and Post TX delays. How exactly are > those times computed? How can I estimate how quickly packets are leaving the > transmitters based on the neighbors and contention? Also, does the entire > flow have to be completed (“End” state) before dequeueing the next downstream > packet, or can there be multiple packets going through this flow (right side > of Fig. 9.4) at the same time? > > If there is a better reference for understanding the packet processing flows, > which includes some explanatory text, that would be very helpful. > _______________________________________________ > emane-users mailing list > [email protected] > http://pf.itd.nrl.navy.mil/mailman/listinfo/emane-users > _______________________________________________ emane-users mailing list [email protected] http://pf.itd.nrl.navy.mil/mailman/listinfo/emane-users
