[Mini-NDN] Emulations using Wifi

[Philipp Moll]

Hi Saurab,


without having tried the code, I am impressed by what is supported! 
Thanks a lot for sharing the information.


I looked through the different wifi code-pieces and there are still some 
missing links where I don't know yet how everything works together.


I guess the wifi_ping examples should be started with the 
singleap-topology.conf 
<https://github.com/named-data/mini-ndn/blob/master/topologies/wifi/singleap-topology.conf>. 
This configuration defines one access point and two stations. But it 
also defines links connecting the stations with the AP. I guess those 
are the Wifi links that underlie some propagation loss model, right?


And in the wifi_ping example, faces are created directly between the two 
stations (Lines 67-69: "a" opens the face to the IP address of "b"). So, 
my understanding of multicast faces is limited, but is it possible that 
both stations open a "Wifi-face" that hears everything what is sent over 
the AP's wifi? Eg., when having 10 stations, every station only needs to 
open a Wifi face and hears all other stations that are within the 
current range.


I guess when doing a MANET evaluation, such a behavior would be very 
helpful. Or maybe I am just thinking overly complex.


Thanks,
Philipp


On 7/13/21 9:31 PM, Saurab Dulal (sdulal) wrote:
> Hi Philipp,
>
> Wifi 
> <https://github.com/named-data/mini-ndn/tree/master/minindn/wifi> is 
> now the part of Mini-NDN main repository. Yes, the documentation has 
> not been released yet, it is still a work in progress. You can refer 
> to this example: 
> https://github.com/named-data/mini-ndn/blob/master/examples/wifi/wifi_ping.py 
> <https://github.com/named-data/mini-ndn/blob/master/examples/wifi/wifi_ping.py> and 
> the wifi code 
> <https://github.com/named-data/mini-ndn/tree/master/minindn/wifi> to 
> get some ideas.
>
>
> Mobility and broadcast are supported by the wifi module. Mini-NDN wifi 
> is based on mininet-wifi 
> (https://github.com/intrig-unicamp/mininet-wifi 
> <https://github.com/intrig-unicamp/mininet-wifi>) so, most of the 
> functionality supported by mininet-wifi is also supported Mini-NDN Wifi.
>
>
> Mininet-Wifi supports a few propagations loss models 
> (https://mininet-wifi.github.io/propagation/ 
> <https://mininet-wifi.github.io/propagation/>), I believe they should 
> be supported by the Mini-NDN wifi as well, but I am not entirely sure. 
> Someone from Wifi developer team needs to chip in here.
>
>
> Best,
>
> Saurab
> ------------------------------------------------------------------------
> *From:* Mini-NDN <mini-ndn-bounces at lists.cs.ucla.edu> on behalf of 
> Philipp Moll <phmoll at cs.ucla.edu>
> *Sent:* Tuesday, July 13, 2021 6:02 PM
> *To:* mini-ndn at lists.cs.ucla.edu <mini-ndn at lists.cs.ucla.edu>
> *Subject:* [Mini-NDN] Emulations using Wifi
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>
> Hi everyone,
>
> a couple of months ago, I saw that the MiniNDN Github repository has a
> branch called "wifi". I guess this branch is somehow related to
> emulating wifi networks, but I haven't found documentation about this
> functionality. So, I am curious whether MiniNDN provides Wifi
> functionality, and if it does, to what degree Wifi is supported. So for
> instance, is it possible to emulate a WiFi broadcast media where
> multiple nodes hear packets on the same "link"? If yes, another question
> would be if propagation loss models and mobility is supported?
>
> Thanks,
> Philipp
>
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