Nomadic application-oriented network congestion control method

A control method and network congestion technology, applied in the direction of data exchange network, digital transmission system, electrical components, etc., can solve problems such as limited processor processing capacity, limited data receiving capacity at the receiving end, limited storage capacity at the router end, etc.

CN102325082AInactive Publication Date: 2012-01-18TIANJIN UNIVERSITY OF TECHNOLOGY
5 Cites 5 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2012-01-18
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention relates to a nomadic-application-oriented network congestion control method. The network congestion adaptive method provides a congestion adaptive control algorithm based on up semi-normal distribution-DARED (distributed adaptive random early detection). According to the DARED algorithm, the corresponding congestion control is performed by improving an original data packet discarding probability function curve, namely adjusting an existing linear discarding straight line of an RED (random early detection) algorithm to a smooth curve, and dividing into different network states according to the queue length. The DARED is characterized in that a real-time dynamic parameter Pmax is introduced on the basis of the traditional RED algorithm, the stability of a queue is kept and the controllability of network congestion is increased. Correspondingly, in the aspect of a nomadic application system, when applied to the aspect of a multimedia seamless migration system, the congestion control algorithm realizes the seamless migration strategy under different architectures, namely the migration strategy under a B / S (browser / server) architecture, the migration strategy under a P2P (peer-to-peer) architecture and the migration strategy under a C / S (client / server) architecture. By adopting the nomadic application-oriented network congestion control method, the continuity, the rapidity, the smoothness and the correctness of media migration can be effectively ensured.
Need to check novelty before this filing date? Find Prior Art

Description

Technical field

[0001] The invention belongs to the technical field of organic combination of computer network, communication and digital media.

Background technique

[0002] With the integration of mobile communication and mobile computing technology, the gradual maturity of mobile technology, the mobile interaction brought about by the application and development of mobile technology provides the possibility of online connection, communication and information exchange anytime and anywhere, and at the same time provides mobile work. New opportunities and challenges. With the expansion of network application scale and the increase of bearing services, the network load increases, local network congestion occurs, and the throughput decreases. In the real-time transmission of audio and video on the network in a nomadic environment, measures must be taken to prevent network congestion. How to effectively avoid communication congestion, improve network performance and oper...

Examples

Embodiment Construction

[0043] The specific technical scheme of the network congestion control method for nomadic applications provided by the present invention is as follows

[0044] The calculation of the first DRED algorithm is to use the existing parameters, that is, the average queue length Q av , the maximum threshold Q max and the minimum threshold threshold Q min, according to the requirements of the fuzzy theory normal distribution membership function into the probability formula (1) of packet discarding, so as to change the linear discarding curve, and at the same time, the parameters can be configured according to the congestion of the network environment in the nomadic mode, reducing the algorithm’s The sensitivity of the parameter settings, namely the maximum threshold threshold and the minimum threshold threshold, controls the queue length between the maximum threshold threshold and the minimum threshold threshold. Such as figure 2 As shown, the linearly changing straight line is tr...