Bugzilla – Bug 2606
Ideal rate manager does not work correctly when a HT/VHT station is transmitting to a legacy access point
Last modified: 2017-02-02 14:51:50 UTC
Even with the fix for bug 2605, the obtained throughput with Ideal RAA is very low when a HT/VHT station is transmitting to a legacy access point. From traces, all frames are sent using the lowest legacy rate. This can be reproduced by using test script and fix attached for bug 2605 and set RAA parameters to Ideal.
Is this something Tom or Matias could investigate?
How can I reproduce? I patched with the patch to bug 2605, then I tried: ./waf --run 'test-backward-compatibility --apVersion=80211a --staVersion=80211ac --apRaa=Ideal --staRaa=Ideal' I get: assert failed. cond="m_qosSupported", file=../src/wifi/model/regular-wifi-mac.cc, line=782
(In reply to Tom Henderson from comment #2) > How can I reproduce? > > I patched with the patch to bug 2605, then I tried: > ./waf --run 'test-backward-compatibility --apVersion=80211a > --staVersion=80211ac --apRaa=Ideal --staRaa=Ideal' > > I get: > assert failed. cond="m_qosSupported", > file=../src/wifi/model/regular-wifi-mac.cc, line=782 Sorry, I updated the patch for bug 2605, VHT was not handled properly.
Tom, any updates on this one?
I would still like to have this one fixed for ns-3.27. Could Tom or Matias investigate this week?
Created attachment 2770 [details] Patch to fix It is missing some control to see if the remote station is ht compatible when searching for modes. I attach a patch.
(In reply to Matías Richart from comment #6) > Created attachment 2770 [details] > Patch to fix > > It is missing some control to see if the remote station is ht compatible > when searching for modes. > I attach a patch. Thanks, it works fine :-) I know Tom was also about to investigate. I guess this is ok for him as well.
Fixed in changeset 12615:89edf33adb50