TCP and Queue Management

طراحی کنترلگر تراکم پیش‌بین تطبیقی برپایه مدیریت فعال صف در مسیریاب‌های شبکه TCP

Design of H� Congestion Controller for TCP Networks Based on LMI Formulation

In this paper, a state feedback H¥ controller is proposed in order to design an active queue management (AQM) system based on congestion control algorithm for networks supporting TCP protocols. In this approach, the available link bandwidth is modeled as a time-variant disturbance. The purpose of this paper is to design a controller which is capable of achieving the queue size and can guarantee...

TCP Enhancement: Fast Active Queue Management Scalable Transmission Control Protocol

FAST TCP is Fast Active queue management Scalable Transmission Control Protocol. FAST TCP is an alternative congestion control algorithm in TCP. It is designed for high speed data transfers over large distance. FAST TCP is assumed to be the “successor” of TCP. Lot of people already worked on this subject. Their research work and results yield a new dimension for the entertainment and scientist ...

Analysis of Active Queue Management

Active Queue Management (AQM) is intended to achieve high link utilization with a low queuing delay. Recent studies show that RED, one of the most well-known AQMs, is difficult to configure and does not provide significant performance gains given the complexity required for proper configuration. Recent variants of RED, such as Adaptive-RED are designed to provide more robust RED performance und...

An Empirical Validation of a Duality Model of Tcp and Queue Management Algorithms

In this paper we validate through simulations a duality model of TCP and active queue management (AQM) proposed earlier. In this model, TCP and AQM are modeled as carrying out a distributed primal-dual algorithm over the Internet to maximize aggregate source utility. TCP congestion avoidance algorithms, such as Reno and Vegas, iterate on source rates, the primal variable. AQM algorithms, such a...

Using Steady- State TCP Behavior for Proactive Queue Management

This paper describes and evaluates the use of steady-state TCP behavior knowledge for proactive queue management (PQM). We show how routers can use flow parameters and the knowledge of TCP end-host behavior to intelligently mark packets to prevent queue build-up, and thus prevent congestion from ever occurring, while at the same time provide high link utilization and low packet loss. This is in...