Wifi Handover

[canleloglu]

In current ns3 deployment a wifi station nodes waits to lose 10
beacons from an access point to mark it as unassociated. This process
of losing 10 beacons take a second, i want this time to be reduces
because i want to associate station node with a new access point more
quickly.

I could not figure out where to change to make this happen.

Any suggestions?

[Konstantinos]

Hi there,

See the attributes of StaWifiMac class (http://www.nsnam.org/doxygen/classns3_1_1_sta_wifi_mac.html)

• ProbeRequestTimeout: The interval between two consecutive probe request attempts.
  • Set with class: TimeValue
  • Underlying type: Time
  • Initial value: +50000000.0ns
  • Flags: construct write read
• AssocRequestTimeout: The interval between two consecutive assoc request attempts.
  • Set with class: TimeValue
  • Underlying type: Time
  • Initial value: +500000000.0ns
  • Flags: construct write read
• MaxMissedBeacons: Number of beacons which much be consecutively missed before we attempt to restart association.
  • Set with class: ns3::UintegerValue
  • Underlying type: uint32_t 0:4294967295
  • Initial value: 10
  • Flags: construct write read

You can change any of these 3 (using the attribute system) so that you can have more frequent de-association.
 

Any suggestions?

[canleloglu]

Exactly what im looking for. Thanks.

On May 22, 1:12 pm, Konstantinos <dinos.katsa...@gmail.com> wrote:
> Hi there,
>
> On Tuesday, 22 May 2012 10:49:49 UTC+1, canleloglu wrote:
>
> > In current ns3 deployment a wifi station nodes waits to lose 10
> > beacons from an access point to mark it as unassociated. This process
> > of losing 10 beacons take a second, i want this time to be reduces
> > because i want to associate station node with a new access point more
> > quickly.
>
> > I could not figure out where to change to make this happen.
>
> See the attributes of StaWifiMac class
> (http://www.nsnam.org/doxygen/classns3_1_1_sta_wifi_mac.html)
>

>    - *ProbeRequestTimeout*: The interval between two consecutive probe
>    request attempts.
>       - Set with class: TimeValue<http://www.nsnam.org/doxygen/classns3_1_1_time_value.html>
>       - Underlying type: Time<http://www.nsnam.org/doxygen/classns3_1_1_time.html>
>       - Initial value: +50000000.0ns
>       - Flags: construct write read
>    - *AssocRequestTimeout*: The interval between two consecutive assoc
>    request attempts.
>       - Set with class: TimeValue<http://www.nsnam.org/doxygen/classns3_1_1_time_value.html>
>       - Underlying type: Time<http://www.nsnam.org/doxygen/classns3_1_1_time.html>
>       - Initial value: +500000000.0ns
>       - Flags: construct write read
>    - *MaxMissedBeacons*: Number of beacons which much be consecutively

>    missed before we attempt to restart association.

>       - Set with class: ns3::UintegerValue<http://www.nsnam.org/doxygen/classns3_1_1_uinteger_value.html>
>       - Underlying type: uint32_t<http://www.nsnam.org/doxygen/classns3_1_1_uinteger_value.html#uint32_t>0:4294967295
>       - Initial value: 10
>       - Flags: construct write read