[ns] how to simulate lossy wireless link?

[Frank Day]

Currently i'm working on wireless tcp.
I think, tcp layer only cares whether the data it received is correct rather than the underlying transmission medium. So there is no difference for tcp layer, if a wired link has the same BER as a wireless link. Is this correct?

Usually, there is a good state and a bad state for wireless link. So I try to use the TwoStateMarkov error model to simulate the 2 states. Can anyone give me any suggestion on how to insert TwoStateMarkov into a wireless link(actually no link is created in tcl scripts) or a wired link(if my above idea is correct)?
Is there an another way to simulate such a lossy wireless link?
 
Thank u very much!
 
Frank
 
 
 
Joshua Robinson <jpr at rice.edu> wrote:
a wired link won't provide the correct model for your transmission medium.
I suggest doing a search on Rayleigh fading

On Wed, 12 May 2004, Frank Day wrote:

>
> hi everyone,
> I want to simulate a wireless link with a certain BER,
> but how to set the parameters?
> my idea is to use a wired link(i.e. duplex link) with an
> errormodel attached.
> Is this correct? Is there any other methods?
>
> Thank u.
>
> frank
>
>
>
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