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Channel allocation method and device based on OpenFlow

An openflow protocol and channel allocation technology, applied in wireless communication, network planning, digital transmission systems, etc., can solve the problem that OpenFlow cannot be directly applied to channel allocation, to ensure real-time and accuracy, simplify the calculation process, efficient and accurate perception Effect

Active Publication Date: 2014-08-06
INST OF COMPUTING TECH CHINESE ACAD OF SCI
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a channel allocation method and its device based on the OpenFlow protocol, so as to overcome the problem that OpenFlow cannot be directly applied to channel allocation in the prior art

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  • Channel allocation method and device based on OpenFlow
  • Channel allocation method and device based on OpenFlow
  • Channel allocation method and device based on OpenFlow

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Embodiment Construction

[0063] Specific embodiments of the present invention are given below, and the present invention is described in detail in conjunction with the drawings.

[0064] Aiming at the problem of channel allocation of a controller to a large number of wireless access points in a centralized WLAN, the present invention proposes a channel allocation method based on the OpenFlow protocol to realize channel allocation for a large number of wireless access point traffic perception.

[0065] The present invention provides an OpenFlow-based channel allocation method, which is characterized in that the method is applied to a network system including a network controller supporting the OpenFlow protocol, multiple switches supporting the OpenFlow protocol, and multiple wireless access points. The switch connects the network controller and the wireless access point, figure 1 It is a schematic flow chart of the method of the present invention, as figure 1 As shown, the method further includes:

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Abstract

The invention discloses a channel allocation method and device based on OpenFlow. The method is applied to a network system comprising a network controller supporting an OpenFlow protocol, multiple switches supporting the OpenFlow protocol, and multiple wireless access points. The method further includes the device interconnection step and the channel allocation step, the network controller and the switches are started through the device interconnection step, and connection between the wireless access points and the network controller as well as between the wireless access points and the switches is built; the channel allocation step is used for making the network controller calculate the actual flow rate of the wireless access points and the predicted flow rate at the next moment through the OpenFlow protocol, and optimum channel allocation of the wireless access points is completed according to the actual flow rate and the predicted flow rate.

Description

technical field [0001] The invention relates to the field of centralized WLAN and OpenFlow, in particular to channel allocation based on OpenFlow in the centralized WLAN. Background technique [0002] With the rapid development of the mobile Internet and the popularization of mobile smart terminals, the way Internet users access the network has undergone tremendous changes. Mobile smart terminals allow people to access the Internet anytime, anywhere. Mobile smart terminals currently access the Internet mainly through cellular communication technology and 802.11-based WLAN. In order to support mobile smart terminals to access the Internet through WLAN, wireless access points need to be deployed. Some research reports point out that the number of mobile smart terminals will soon exceed the population. In order to support such a large number of mobile smart terminals to access the network, it is necessary to deploy a large number of wireless access points. In a traditional aut...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/917H04W16/10H04L47/76
Inventor 杨宝兴周安福刘敏王煜炜陈晓
Owner INST OF COMPUTING TECH CHINESE ACAD OF SCI
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