A control theoretic model for SBRM, a TCP variant based on congestion pricing theory, is presented in this article. We also examine the impact of instability on networks and show that instability causes decreased utilization. From our results we conclude that SBRM is more efficient than TCP Reno with RED queues.

In this paper we investigate the dynamic behavior of multiplexer queues for TCP traac in simple ATM networks. Our results are based on theoretical investigations which are proved by simulations. We propose a cell based queue length evaluation for TCP traac over ATM using service c ategorie UBR. In case of cell losses at the ATM multiplexer we estimate packet loss probabilities and discuss the i...

Congestion is the problem that occurs due to saturation of network resources. Despite the implementation of traditional congestion control algorithms such as Transmission Control Protocol (TCP/IP), congestion remains a critical issue in computer and ATM networks. Fuzzy Logic is applied to solve the congestion control problem as communication networks are difficult to model using traditional con...

Active Queue Management (AQM) plays an important role in the Internet congestion control. It tries to enhance congestion control, and to achieve tradeoff between bottleneck utilization and delay. Random Early Detection (RED) is the most popular active queue management algorithm that has been implemented in the in Internet routers and is trying to supply low delay and low packet loss. RED al...