[e2e] simulation using self-similar traffic

Bill Courtney Bill.Courtney at trw.com
Wed Apr 4 09:28:26 PDT 2001

Soo-hyeong & Polly,

If you take the conversation off-line, please share with the list any conclusions 
that you come to. I, for one, would be very interested.

My limited experience with heavy-tailed distributions has always been less than 
satisfactory. I think that because the probability that very long file sizes will 
be drawn is so low (though non-negligible), the sample average file size is almost 
always less than the true average of the distribution. The result I get is that 
the simulated offered traffic is less than the expected offered traffic, and, 
ironically, performance ends up looking better than expected rather than worse.

Or it could be that I screwed something up. :-)


> Nevertheless I agree the average link throughput is bounded by the
> bandwidth.  And, the discussion is going a bit too mathematical.  
> Perhaps we should take it offline.
> Cheers,
> -Polly

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