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Correlation method of distributed access point in wireless Mesh network

An access point and distributed technology, applied in wireless communication, network topology, network traffic/resource management, etc., can solve the problem of insufficient consideration of the multi-hop characteristics of wireless Mesh networks, the impact of load balancing network performance, and the lack of consideration Issues such as traffic distribution balance and hotspot link congestion avoidance in wireless Mesh networks

Active Publication Date: 2010-07-28
TSINGHUA UNIV
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Problems solved by technology

[0005] This method has the following shortcomings: First, this method only considers the access point association problem from the perspective of potential bandwidth, and does not consider the impact of load balancing on network performance
[0007] The disadvantages of this method are as follows: First, although this method is dynamic, it may cause too fast switching of access points; second, this method does not fully consider the multi-hop characteristics of wireless mesh networks, and does not take Flow distribution balancing and congestion avoidance on hotspot links in wireless mesh networks

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  • Correlation method of distributed access point in wireless Mesh network
  • Correlation method of distributed access point in wireless Mesh network
  • Correlation method of distributed access point in wireless Mesh network

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Embodiment Construction

[0064] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0065] According to an embodiment of the present invention, a method for associating distributed access points in a wireless Mesh network is provided. pass below Figure 2 ~ Figure 3 Specific embodiments of the present invention will be described in detail.

[0066] figure 2 In the present invention, the access point and the user in the wireless Mesh network collect information, and the overall flow of the user selects and associates the access point. Such as figure 2 As shown, the first stage of the process is information gathering. Each access point in the network collects the required information. It includes the information that each access point needs to...

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Abstract

The invention relates to a correlation method of distributed access points in a wireless Mesh network, which belongs to the technical field of the wireless Mesh network access. The method is characterized in that each access point of a wireless Mesh network adopts transmission of an uplink data message and a downlink data message to carry information needed to be collected by the access point, including the number of indirect users of the relevant access point and the average required bandwidth of the indirect users; during the access to the network, the user obtains a list of all accessible access points at first and then obtains various types of information needed for calculation in a relevancy algorithm from each access point in the list, including the number of direct users of the relevant access point, the number of indirect users of the relevant access point, the average required bandwidth of the direct users and the average required bandwidth of the indirect users; and then the user calls an optimal relevancy access point calculated in the relevancy algorithm and initiates relevancy to the access point. The mechanism disclosed in the invention can make the fulfillment rate of the average bandwidth of the relevant access point relatively balanced on the basis of ensuring a certain fulfillment rate of the required bandwidth of the user, thereby ensuring the load balance of the wireless Mesh network.

Description

technical field [0001] Wireless Mesh network access technology field. Background technique [0002] A Wireless Mesh Network (WMN for short) is a meshed multi-hop wireless network. figure 1 Shown in is an example of a wireless Mesh network. When a user accesses the network, the user may be within the coverage of multiple access points (Access Points, access points for short) at the same time. Therefore, a certain association algorithm is required to associate the user with a specific access point. A traditional method for associating access points in a wireless local area network (Wireless Lan, WLAN for short) is based on a received signal strength (Received Signal Strength Indication, RSSI for short) defined in the IEEE802.11 standard. This association method does not take into account the channel access delay caused by competition among users accessing the same access point, and the multi-hop characteristics of wireless mesh networks. Therefore, it is necessary to propo...

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Application Information

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IPC IPC(8): H04W28/08H04W28/10H04W40/02H04W40/24H04W84/18
Inventor 崔勇马天泽
Owner TSINGHUA UNIV
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