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Method for balancing gateway load of wireless Mesh network

A load balancing and network gateway technology, applied in wireless communication, network traffic/resource management, electrical components, etc., can solve the problems of wireless mesh network gateway congestion, load imbalance, etc. The effect of load balancing

Active Publication Date: 2013-04-24
SOUTHEAST UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The technical problem to be solved by the present invention is the problem of congestion and unbalanced load of some gateways in the wireless Mesh network

Method used

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  • Method for balancing gateway load of wireless Mesh network
  • Method for balancing gateway load of wireless Mesh network
  • Method for balancing gateway load of wireless Mesh network

Examples

Experimental program
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Embodiment Construction

[0045] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0046] 1. Acquisition of global topology and load information:

[0047] As the central control node of the centralized control Mesh network, the AC controls the global information of the entire network. When starting the load balancing task, the AC sends load information requests to all gateways in the network to obtain a global view of the gateway load information; at the same time, the AC sends routing information requests to all MAPs that aggregate user traffic in the network to obtain MAP routing information (master global view of paths and backup paths). On the local AC, a data structure is defined to store global load and routing information. The specific data structure is as follows:

[0048] (1) Data structure of global gateway load information

[0049]

[0050] (2) Data structure of global routing information

[0051]

[0052] (3) Data str...

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Abstract

The invention discloses a method for balancing a gateway load of a wireless Mesh network. A network structure of a centralized-control type is used for implementing global load balancing calculation on an AC (access controller), and flow transfer is completed through the routing configuration of the access controller on a MAP (Mesh access point); therefore, the load balancing of the MPP (massively parallel processor) of a Mesh gateway is realized. The AC is used as a key node in the network, and acquires global topology and gateway load information through a way of information request; a current optimal flow transfer scheme for the global load balancing calculation is selected in a way of iteration; and each generated flow transfer scheme is delivered to the MAP implementing flow transferthrough a routing configuration command of the AC; a multi-path source routing mechanism is adopted for the routing in the network; each MAP maintains a plurality of paths reaching different gateways, wherein one path is selected as a main path to implement data transmission, and another path reaching different gateways is selected by flow transfer to replace the original main path.

Description

technical field [0001] The invention relates to a load balancing method of a wireless Mesh network gateway, which utilizes related technologies such as a centralized control network structure, load balancing and multipath routing, and relates to wireless networks, especially the field of wireless Mesh networks. Background technique [0002] First the abbreviations used in the present invention are defined: [0003] IEEE (Institute of Electrical and Electronics Engineering): Institute of Electrical and Electronics Engineers; [0004] WLAN (Wireless Local Area Network): wireless local area network; [0005] IEEE 802.11s: draft WLAN Mesh protocol; [0006] AP (Access Point) wireless access point, which provides wireless network access services for wireless terminals; [0007] STA (Station) mobile terminal, a terminal user in WLAN, accesses WLAN through AP and accesses the network; [0008] WMN (Wireless Mesh Network): Wireless Mesh Network; [0009] MP (Mesh Point): Mesh n...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W28/08H04W28/10
Inventor 杨明罗军舟吴文甲王维
Owner SOUTHEAST UNIV
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