Bug 2223 – Incorrect ACK timeout

Bug 2223 - Incorrect ACK timeout


Summary:	Incorrect ACK timeout

Status:	RESOLVED DUPLICATE of bug 761

Product:	ns-3
Classification:	Unclassified
Component:	wifi
Version:	ns-3.24
Hardware:	All All

Importance:	P5 normal
Assigned To:	sebastien.deronne

URL:
Keywords:

Depends on:
Blocks:
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Reported:	2015-11-20 05:56 UTC by levente.meszaros
Modified:	2015-11-20 06:00 UTC (History)
CC List:	1 user (show)

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Description levente.meszaros 2015-11-20 05:56:04 UTC

In the 802.11-2012 standard the ACK timeout value is calculated as (measured from txend): aSIFSTime + aSlotTime + aPHY-RX-START-Delay

In the current implementation the ACK timeout value is calculated as (see WifiMac::Configure80211* and MacLow::StartDataTxTimers): 

normal: sifs + acktx + slot + 2 * propagation
fast: pifs = sifs + slot
superfast: pifs = sifs + slot

It seems to me that all timeouts are different from what the standard says.

Comment 1 sebastien.deronne 2015-11-20 06:00:50 UTC

Could you please stop opening new threads for bugs that are already existing?
Similar issues are being discussed in bug 761, you should add your comments to this existing thread.

*** This bug has been marked as a duplicate of bug 761 ***