RTS/CTS timeout

[cbowe...@gmail.com]

What is the maximum distance nodes can be from each other in a Wifi network before the RTS/CTS timeout needs to be extended to allow for transmit time of a given long distance (assuming high enough tx power)?

[cbowe...@gmail.com]

For example, I lose all unicast traffic when RTS/CTS is turned on after nodes are 3000 meters apart. Is there a way to adjust this setting in NS3? Extend RTS range to some greater distance?

[cbowe...@gmail.com]

I am able to transmit multicast packets at this distance and if I turn off RTS/CTS, I am able to transmit packets past 3000 meters.

[cbowe...@gmail.com]

I found that you can change the timeout based on this equation from mac-low.cc:

// After transmitting an RTS frame, the STA shall wait for a CTSTimeout interval with

// a value of aSIFSTime + aSlotTime + aRxPHYStartDelay (IEEE 802.11-2016 sec. 10.3.2.7).

 // aRxPHYStartDelay equals the time to transmit the PHY header.

These are set at the device via WifiPhy::SetSlot or WifiPhy::SetSifs. I changed the slot time to allow for the round trip distance I needed.

[Dolla Vamshi Ganesh ee21s116]

Hii can you tell where did you use this and why  you needed this.            

Are you doing any long distance simulation or research kindly let me know