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Method and apparatus of channel allocation in multi-frequency antenna mesh network

A technology of wireless mesh network and channel allocation, which is applied in the field of channel allocation based on load weighted topology, which can solve the problems of frequency, inapplicability of a routing protocol, etc., and achieve the effect of high capacity

Inactive Publication Date: 2008-12-31
NEC (CHINA) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Furthermore, the JCAR solution results in a static routing configuration in the network that makes it impossible to react dynamically to node and link failures, which inherently occur more frequently in wireless networks than in wired networks
While it is possible to modify existing routing protocols to utilize static routing as a default configuration and to search for new paths on node / link failure, such modifications to one routing protocol are not applicable to other routing protocols

Method used

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  • Method and apparatus of channel allocation in multi-frequency antenna mesh network
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Embodiment Construction

[0032] In order to overcome the shortcomings in the technical solutions mentioned in the aforementioned background technology section, the present invention proposes a method for allocating channels in a multi-frequency wireless mesh network. In the case of considering the link historical traffic load, the method Periodically allocating the channels of the links in the network at intervals of, for example, several hours or several days, not only can improve the capacity of the network, but also is very suitable for wireless mesh networks. In the present invention, a cycle is defined as the interval between the end of two consecutive channel assignments, and the time interval of each cycle does not need to be equal.

[0033] The process of channel allocation using the method of the present invention also includes iterative optimization of channel settings after channel allocation, so as to further provide network capacity by changing the channel of the bottleneck link with the l...

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Abstract

The invention discloses a channel allocation method that is used for a multiple-frequency wireless mesh network and based on link load weighted topology and equipment thereof. A network comprises a plurality of mesh routers. Each mesh router is provided with a plurality of frequency devices, wherein, a pair of unidirectional links with opposite directions attached to the mesh routers exists between two mesh routers which are in the emission range of the frequency devices. The method comprises the following steps: according to the average busy time for sending data of each link in the network, the link load of each link is measured; and channel allocation is carried out to each link on the basis of the link load of each link.

Description

technical field [0001] The present invention generally relates to wireless networking technology, and more specifically relates to a method and device for channel allocation based on load weighted topology of a multi-frequency wireless mesh network. Background technique [0002] Wireless mesh networks are emerging as a promising technology for providing broadband Internet access. In general, a wireless mesh network consists of a collection of mesh routers, each of which acts as an access point for mobile clients within its coverage area, while the mesh routers interconnected with each other. Some mesh routers have a wired connection to the Internet and act as a gateway between the mesh network and the Internet. Compared to traditional wireless LANs, the main feature of wireless mesh networks is their multi-hop wireless backbone infrastructure. [0003] A major advantage of wireless mesh networking is that it provides an inexpensive, quick and easy solution to extending an...

Claims

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Application Information

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IPC IPC(8): H04L12/56H04Q7/36H04W40/02H04W72/04H04W72/08H04W84/18
CPCH04W40/02H04W84/18H04W72/52
Inventor 汪锦岭夏勇
Owner NEC (CHINA) CO LTD
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