Coded TCP

George Herbert george.herbert at gmail.com
Wed Oct 24 03:38:46 UTC 2012


Modeled with just simple FTP sessions?

Ugh: they admitted to having MIT backbone packet traces to analyze, and then used that simple of a simulator...

George William Herbert
Sent from my iPhone

On Oct 23, 2012, at 8:29 PM, Rodrick Brown <rodrick.brown at gmail.com> wrote:

> "With coded TCP, blocks of packets are clumped together and then
> transformed into algebraic equations that describe the packets. If
> part of the message is lost, the receiver can solve the equation to
> derive the missing data. The process of solving the equations is
> simple and linear, meaning it doesn't require much processing on
> behalf of the router/smartphone/laptop. In testing, the coded TCP
> resulted in some dramatic improvements. MIT found that campus WiFi (2%
> packet loss) jumped from 1Mbps to 16Mbps. On a fast-moving train (5%
> packet loss), the connection speed jumped from 0.5Mbps to 13.5Mbps."
> 
> http://www.mit.edu/~medard/papers2011/Modeling%20Network%20Coded%20TCP.pdf
> 
> --RB
> 



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