On Tue, Mar 8, 2011 at 2:39 AM, M. A. <jdiq123@xxxxxxxxxxxxxx> wrote: > Dear all, > > Just an update to my previous query regarding the relation between WMM > and 802.11n: > > Now from what I understand, WMM (802.11e) is part of the 802.11n > standard as it uses features (like block-Ack) in the new (MAC layer) > enhancements such as frame aggregation. > > When WMM is activated (via hostapd: wmm_enabled=1) as well as frame > aggregation, I get around 230Mbps UDP/ 170Mbps TCP. When WMM is > deactivated I get 35 Mbps UDP and 27 Mbps TCP. > > I tried to identify the causes of this decrease, so I disabled frame > Aggregation (A-MPDU) and disabled all the WMM associated parameters > like tx_queue_data* , wmm_ac_* (BK/BE/VI/VO) /(CW/TXOP/AIFS) etc. but > leaving the WMM option on (wmm_enabled=1). This gave around 45 Mbps > UDP and 33Mbps TCP. Hi, please read through the discussion in this thread "Why is wmm_param required for HT40- in mlme.c" in linux wireless mailing list > > > So my question is what other WMM influencing factor is activated that > is causing the remaining throughput increase from 35 Mbps to 45 Mbps. > Also if someone could explain the WMM traffic identifier's (TID) > relevance in throughput improvement. > > Thank you all very much > -- > To unsubscribe from this list: send the line "unsubscribe linux-wireless" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
