Re: Fritchman model

["Luigi Patrono" <luigi.patrono@unile.it>]

I read a paper (J.W.K. Wong and V.C.M. Leung, "Improving end-to-end
performance of TCP using link-layer retransmission over mobile
internetworks", in Proc. ICC'99, Vancouver, BC, June 1999) in which this
model was adopted as a network (wired) congestion model.
Unfortunately, the model parameters weren't specified.
Now, I think that I will use a congestion model that is implemented in  ns2
tool.


----- Original Message -----
From: "Dr. Richard W. Tibbs" <drtibbs@oakcitysolutions.com>
To: "Luigi Patrono" <luigi.patrono@unile.it>
Cc: "Andy Murton" <awm@threegee.net>; <te-wg@ops.ietf.org>
Sent: Thursday, November 01, 2001 8:43 PM
Subject: Re: Fritchman model


> A little late on this track, but:
> Why don't you use one of a number of queueing models for congestion
> estimates?
> Or, you could configure and run a simulation.
> Why would you want to use a model developed for channel fading as a
> congestion model?
> Let me know if you have had some deep insight on an advantage that the
> Fritchman model would have, but at the moment I don't know of one.
>
>  >>RWT
>
>
> Luigi Patrono wrote:
>
> > Dear Andy,
> > Thank you for your answer. Unfortunately, I had already seen this URL,
but
> > those parameters are used to model an ACTS land mobile satellite
channel. In
> > that case, the Fritchman model is used as fading model.
> > In my study, I'd like to model the network congestion.
> > Best regards,
> >     Luigi
> >
> >
> > ----- Original Message -----
> > From: "Andy Murton" <awm@threegee.net>
> > To: "Luigi Patrono" <luigi.patrono@unile.it>; <te-wg@ops.ietf.org>
> > Sent: Wednesday, October 17, 2001 10:33 AM
> > Subject: RE: Fritchman model
> >
> >
> >> http://www.ee.byu.edu/ee/comm/amt/land/burst/fritchman.table.html
> >>
> >> --> -----Original Message-----
> >> --> From: owner-te-wg@ops.ietf.org [mailto:owner-te-wg@ops.ietf.org]On
> >> --> Behalf Of Luigi Patrono
> >> --> Sent: Wednesday, October 17, 2001 3:34 PM
> >> --> To: te-wg@ops.ietf.org
> >> --> Subject: Fritchman model
> >> -->
> >> -->
> >> --> Hi All,
> >> --> I'd like to model the network congestion by the Fritchman
> >> --> model. So, I need
> >> --> the values of the  parameters related on this model.
> >> --> Could you make me aware the values of the simulation parameters
> >> --> releted on
> >> --> Fritchman model?
> >> -->
> >> --> Thank you.
> >> -->     Luigi
> >> -->
> >> -->
> >> -->
> >> -->
> >>
> >>
>
> --
> Dr. Richard W. Tibbs
> Oak City Networks & Solutions
> P.O. Box 10292
> Raleigh NC 27605
> 919.510.9551
>
>
>
>