End-to-End Adaptive Congestion Control in TCP/IP Networks

6

Fluid Flow Model Congestion Control

CONTENTS

6.1 Overview

6.2 The Fluid Flow Model

6.3 Network Representation

6.4 Congestion Control as a Resource Allocation Problem

6.4.1 Dual Approach

6.4.2 Primal Approach

6.4.3 Utility Function Selection

6.5 Open Issues

6.5.1 Stability and Convergence

6.5.2 Implementation Constraints

6.5.3 Robustness

6.5.4 Fairness

6.6 Concluding Comments

6.1 Overview

Current Internet is comprised of a plethora of heterogeneous systems (i.e., sources, routers) performing highly complex tasks for which it is practically impossible to obtain clear and accurate mathematical representations. In addition, the interconnected medium (wired, wireless, satellite links) elevates even further the complexity level of the overall ...