[Ns-developers] Update on ns-3 802.11n

[Mathieu Lacage]

On Tue, 2010-08-31 at 02:15 +0200, Tommaso Pecorella wrote:

> There are some major points to handle to achieve 11n support, so any
> feedback is appreciated. In order of importance, they are:
> 1) new preambles.
> 2) new coding schemes (and the various related timings)
> 3) mixed mode operations (b/g/n)
> 4) 20/40 support
> 5) MIMO support
> 6) AMPDU aggregation
> 
> Even if from a "user" point of view probably the most exciting and
> interesting thing would be to have the raw power of 11n, as is the
> MIMO and 20/40 stuff, they are not the first thing in my list, and
> that for a number of reasons.
> 
> Preambles and coding schemes are blocking features, as is they *have*
> to be implemented. Coding schemes, being quite similar to 11a ones,
> should not be a big issue. Preambles on the contrary are quite harder,
> as to my best knowledge ns-3 use everywhere the long preambles. Hence

The PHY should use the preambles that the MAC programs and the MAC was
designed so that it uses the preambles that the WifiRemoteStationManager
tells. i.e., you would need to add support for dynamically choosing the
preamble to usein that class and use it from the MAC.

Mathieu
-- 
Mathieu Lacage <mathieu.lacage at sophia.inria.fr>
Tel: +33 4 9238 5056