Hi, Thank you, but I have read the discussion in that thread and it does not answer my question. I would be grateful someone could point out what other 802.11n throughput improving enhancement other than frame aggregation(A-MPDU) depend on WMM being enabled via hostapd. Thanks On Tue, Mar 8, 2011 at 5:20 AM, Mohammed Shafi <shafi.wireless@xxxxxxxxx> wrote: > 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
