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Channel allocating method and device for multichannel multi-interface wireless mesh network

A wireless mesh network and channel allocation technology, applied in wireless communication, network topology, communication between multiple stations, etc. The effect of reducing latency and improving network throughput

Inactive Publication Date: 2010-07-28
卢凤莲
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

However, this algorithm cannot remove the interference between nodes of the same level. When the number of available channels is more than the number of node levels, some channels will not be used, resulting in waste of channels.
In addition, this algorithm only considers the situation of orthogonal channels, and does not consider the interference of adjacent channels.

Method used

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  • Channel allocating method and device for multichannel multi-interface wireless mesh network
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  • Channel allocating method and device for multichannel multi-interface wireless mesh network

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Embodiment Construction

[0037] The technical solutions of the present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0038] A channel distribution device for a multi-channel multi-interface wireless mesh network mainly includes a broadcast tree generation module, a multicast tree generation module and a channel distribution module. The functions of each module are introduced below.

[0039] The broadcast tree generation module is used to divide all nodes in the wireless mesh network into grades, generate a broadcast tree, and determine all relay nodes in the broadcast tree;

[0040]Wherein, the broadcast tree generation module determines each node of the broadcast tree layer by layer according to the sequence from top to bottom to determine the relay node, wherein, when determining the relay node of a certain layer, first select from the lower layer nodes of the layer For the node with the least number of parent nodes, th...

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Abstract

The invention discloses a channel allocating method and a device for a multichannel multi-interface wireless mesh network, relating to the wireless mesh network. The channel allocating method comprises the following steps: determining a trunk node in a broadcast tree after generating the broadcast tree from all nodes in the wireless mesh network according to grades, constructing a multicast tree with the least number of nodes according to the trunk node, and performing channel allocation for each node in the constructed multicast tree. By using the technical scheme of the invention, the network throughout is improved to a large extent and the time delay is lowered.

Description

technical field [0001] The invention relates to a wireless mesh network (Wireless Mesh Network), in particular to a channel allocation method and equipment for a multi-channel multi-interface wireless mesh network. Background technique [0002] Wireless Mesh Network (WMN, Wireless Mesh Network, also known as wireless mesh network, wireless mesh network, etc.), is a new type of broadband wireless mesh structure, a high-capacity, high-speed distributed mesh. In terms of network topology, the wireless Mesh network is similar to the Ad Hoc network, but the user terminals of the wireless Mesh network have relatively low mobility, and most nodes in the network are basically stationary, without batteries as power, and the topology changes are small. Furthermore, the wireless mesh network generally does not exist as an independent network form, but is a wireless extension of the Internet core network. The main business of the nodes of the wireless mesh network is the business to and...

Claims

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Application Information

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IPC IPC(8): H04W72/04H04W84/00H04B7/26
Inventor 李萍刘峰夏宏飞
Owner 卢凤莲
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