This paper mainly analyzes the algorithms and technology of congestion avoiding/controlling of active queue management that is applicable to the network processor, and discusses their performance criteria and technology features thoroughly. Then it proposes the method to protect and optimize TCP bandwidth by adopting several measures to the Internet routers, for example, active queue management...

This paper proposes a novel scheme to improve the fairness of active queue management congestion control. In order to reduce the increasing rates of packet loss caused by the exponential increase of network traffic, IETF (Internet Engineering Task Force) is considering the deployment of active queue management techniques such as RED (Random Early Detection). RED is a simple scheme, but it does ...

The Internet today carries traffic for applications with a wide range of delay and throughput requirements. Traditional applications such as FTP and E-mail can tolerate high delays due to long router queues in exchange for high throughput. Emerging applications such as IP telephony, video conferencing and networked games, on the other hand, have have more stringent delay constraints than loss c...

Fairness is the significant factor to sustain best effort delivery of network services. Now-a-days, real-time multimedia applications have evolved largely over the Internet. Most of multimedia services are unresponsive during network congestion. Unresponsive traffic streams steal most network bandwidth and starve out some other flows which are responsive during network congestion. In the presen...

Recent work on congestion control in TCP/IP networks combines improved end-user transmission mechanisms with active queue management schemes at network routers. An active queue management scheme consists of two stages. In order to stabilize the queues at a router, one must first determine an appropriate packet marking probability given the current degree of congestion. Second, in order to reali...

Queue management plays an important role in the performance of IP based networks and cellular networks in particular where large buffers are often deployed in order to absorb bursts resulting from the dynamic nature of the radio channel. Long standing queues building up in large buffers leads to “Bufferbloat”, degrading the performance especially for delay-sensitive applications while small buf...

We present an Active Queue Management policy and we study its ability to steer an entire TCP/IP network into global max–min fairness of its long–lived flows, in a totally distributed fashion. A previously proposed technique, initially applicable to circuit–switched networks and feedback–based flow control networks is adapted to the realities of packet–switching and TCP flow/congestion control, ...

Congestion in a network or internet creates obvious problems for the end system: reduced availability and throughput and lengthened response times. When a packet is dropped before it reaches its destination, all of the resources it has consumed in transit are wasted. Improving the congestion control and queue management algorithms in the Internet has been one of the most active areas of researc...

Congestion is an important issue which researchers focus on in the Transmission Control Protocol (TCP) network environment. To keep the stability of the whole network, congestion control algorithms have been extensively studied. Queue management method employed by the routers is one of the important issues in the congestion control study. Active queue management (AQM) has been proposed as a rou...

Active Queue Management (AQM) is an important problem in networking. In this paper, we propose a general functional optimization model for designing AQM schemes. Unlike the previous static function optimization models based on the artificial notion of utility function, the proposed dynamic functional optimization formulation allows us to directly characterize the desirable system behavior of AQ...