[Ns-developers] GSoC + WiPreSS

[Ruben Merz]

Dear Paolo

Comments below

On 3/31/09 1:50 PM, paolo.pilia at telecompress.net wrote:
> Quoting Ruben Merz <ruben at net.t-labs.tu-berlin.de>:
>
>> Dear Paolo
>>
>> On 3/29/09 6:18 PM, paolo.pilia at telecompress.net wrote:
>>> Dear NS3 developers,
>>>
>>> I want inform ns-3 developers about the new project WiPreSS ( Wireless
>>> Prediction and Simulation Software - info on telecompress dot net).
>>> I'm working to integrate ns-3 for simulation.
>>
>> Would you give us a bit more details than what is on
>> http://telecompress.net/ ? How does really ns-3 relate to it? Which
>> parts of ns-3 do you want to use?
>>
>
> WiPreSS is a free solution for wireless network design and testing.
> Basically it will be a really-free alternative to Radio Mobile, with
> some additional features.
> It calculate the radio propagation in a real scenario. Importing data
> of terrain (altitude) from DEM repositories and combine it with
> builds-data from shapefile.
> Ns3 is the best candidate for testing a wireless application after the
> design.
> I'm working also to develop another kind of simulation based on it++
> for custom trasmission channel ( p2p radio link) with definition of
> modulation, coding, filter.
>
>>> At this moment the radio propagation tool of ns3 is so poor. I'm going
>>> to register in socghop and present my candidature as student for GSoC on
>>> antennas module.
>>
>> Could you please elaborate on how you would work on this project. What
>> kind of antenna radiation pattern model would you implement? How would
>> you implement it? Maybe even validate it?
>>
>
> The innovation (confronting with actual ns3) in an antenna class that
> compute the 3d pattern of antenna reading the specifications file (MSI

Ok, an antenna class might be a good start. But then, where would 
integrate such a class in the current ns-3 codebase? Typically, such a 
class should interface with the propagation models. So, how would you do 
that?

> or ANT). These files are used by the antennas vendor. It make possible
> to test a radio connection with a chosen antennas (for example select
> a Kathrein specific model).
> 3D pattern is result of horizontal and vertical diagram combination.

Well, before a full 3D radiation pattern, I would start with a simpler 
2D pattern. Also, the implementation of a radiation pattern implies that 
nodes must have an orientation. This is not yet supported in ns-3.

> I've an implementation of this class for WiPreSS.
>
> I'm going to add the function for elements combination in array.
> It's simple implementable with defined elements, positions and phases.
>
> About propagation model I'm going to write the code.

There are already propagation models in ns-3. Assuming the work on the 
antenna is done, what would you propose?

> Validation is planned (Wipress is a thesis project).

Could you please elaborate on this?

>
> On side of propagation model I'm working to combine multi-path
> propagation model (it++) with ray tracing.
> Actually the realization it's related to the critical aspect of
> processing environment.

That would be very interesting but I fear this is way too much. 
Actually, this is likely another project in itself.

Ruben

> The goals are simple defined in the equation:
> Antennas::3dpattern + environment::raytracing + channel::multipath =
> diversity simulation
>
>
>
>
>> Best
>> Ruben
>>
>>> Regards,
>>> Paolo Pilia