TCP - IP White Papers
Reverse Engineering TCP/IP-Like Networks Using Delay-Sensitive Utility Functions
Overview TCP/IP can be interpreted as a distributed primal-dual algorithm to maximize aggregate utility over source rates. It has recently been shown that an equilibrium of TCP/IP, if exists, maximizes the same delay-insensitive utility over both source rates and routes, provided pure congestion prices are used as link costs in the shortest-path calculation of IP. In practice, however, pure dynamic routing is never used and link costs are weighted sums of both static as well as dynamic components. This paper introduces delay-sensitive utility functions and identifies a class of utility functions that such TCP/IP equilibrium optimizes. The paper exhibits some counter-intuitive properties that any class of delay-sensitive utility functions optimized by TCP/IP necessarily possesses.
| Publisher | California Institute of Technology | File Format | |
|---|---|---|---|
| Date Published | December 2006 | ||
| Format | White Papers | ||
| Topics | |||
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