Novel bandwidth allocation algorithm supporting QoS

A bandwidth allocation and algorithm technology, which is applied in the computer field and can solve problems such as inability to meet service requirements and inability to guarantee real-time performance.

Inactive Publication Date: 2014-06-04
QIQIHAR UNIVERSITY
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  • Description
  • Claims
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Problems solved by technology

Although this service can meet most of the service requirements of the current Internet, such as HTTP and E-mail, etc., it cannot guarantee real-time performance, so it cannot satisfy voice streams and video streams in NGN, especially voice streams. service needs
[0005] Also have the network bandwidth allocatio...

Method used

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  • Novel bandwidth allocation algorithm supporting QoS
  • Novel bandwidth allocation algorithm supporting QoS
  • Novel bandwidth allocation algorithm supporting QoS

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Embodiment Construction

[0023] The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0024] model building

[0025] There are various service flows in the network, and different service flows have different requirements on QoS. Table 1 lists the QoS requirements of some different service flows.

[0026] Table 1 Service characteristics and QoS requirements of some main services on the new generation network

[0027]

[0028] VoIP streams and IPTV streams are sensitive to delay; general TCP services have high requirements for reliability; UDP streams have high requirements for real-time performance, but not high requirements for factors such as packet loss rate; HTTP streams and VoIP streams have high requirements for bandwidth. minimum requirements. The bandwidth provided by the bandwidth allocation algorithm must be able to guarantee the QoS of these different services. Therefore, diffe...

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Abstract

The invention discloses a novel bandwidth allocation algorithm supporting QoS. According to the algorithm, based on utility functions, a user demand factor and a service demand factor are considered comprehensively. According to the utility functions of all kinds of services in a network, influences on all kinds of service utilities by bandwidth are analyzed, so that weights are allocated to all kinds of services. According to a toll strategy made by an Internet provider, weights of all kinds of users are obtained when the bandwidth is allocated. By the utilization of an analytic hierarchy process, the service weights and the user weights are unified to be weights of specific users and specific services to serve as a basis when the network bandwidth is allocated. In order to provide better service quality, according to the method, the network load balancing problem is also researched so that influences on service quality caused by network load unbalancing can be reduced.

Description

technical field [0001] The invention belongs to the technical field of computers and relates to a novel bandwidth allocation algorithm supporting QoS. Background technique [0002] In the decades since the Internet was born, it has developed rapidly, the number of terminals has continued to increase, the types of services have emerged one after another, and the amount of information in the network has risen sharply. The emergence of these phenomena makes the problem of network bandwidth allocation more important. [0003] In the past, voice, video and data streams were respectively provided by PSTN, cable TV network and the original Internet network, but for the next generation network (NGN), voice, video and data are all provided by the Internet, how to provide It will be a key issue for NGN to carry out bandwidth allocation in the Internet of three-network-in-one service, and to ensure the quality of service of various streams, such as delay control, jitter, and throughpu...

Claims

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Application Information

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IPC IPC(8): H04L12/927H04L47/80
Inventor 都文和姚志强房汉雄王艳春
Owner QIQIHAR UNIVERSITY
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