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Method and apparatus for disposing wireless netted network in urban area circumstance

A technology of wireless mesh network and environment, applied in the field of deployment of wireless mesh network nodes, can solve the problems of choosing a placement point, difficult to solve the problem of wireless mesh network deployment, difficult to choose, etc.

Active Publication Date: 2009-05-27
HEWLETT-PACKARD ENTERPRISE DEV LP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although wireless mesh networks have similar goals to wireless LANs in terms of coverage goals, there is another important issue to consider in wireless mesh network deployments: connectivity between wireless routers
[0006] However, the above-mentioned existing wireless mesh network deployment methods are difficult to solve the problem of wireless mesh network deployment in urban environments
In the urban environment, due to the requirements of height, power, and line-of-sight communication, it is difficult to select the placement point of the wireless router according to the requirements of the regular graphics, and it is also difficult to select the placement point according to the method of the open area. Utilize existing available placement points

Method used

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  • Method and apparatus for disposing wireless netted network in urban area circumstance
  • Method and apparatus for disposing wireless netted network in urban area circumstance
  • Method and apparatus for disposing wireless netted network in urban area circumstance

Examples

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Embodiment 1

[0028] This embodiment provides a method for deploying a wireless mesh network node in an urban environment. The wireless mesh network node may be a wireless router or a wireless access point with a wireless bridge function. The following only uses a wireless router as an example for illustration.

[0029] Embodiments of the present invention consider a typical urban environment. In this environment, N candidate placement points in the area are determined through pre-investigation, for example, light poles on roads, etc. may be used as candidate placement points. Here, record CANDIDATES={C 1 , C 2 ,...,C N} is the set of candidate placement points, where N is the number of candidate placement points, and C i i=1..N is the i-th candidate placement point. against C j ∈CANDIDATES, examine the alternative placement point C i , C j Whether there is a line-of-sight communication relationship between them.

[0030] The goal of the embodiments of the present invention is to...

Embodiment 2

[0092] In this example, if image 3 As shown, the device for implementing the deployment method of the wireless mesh network in the above-mentioned urban environment mainly includes the following parts:

[0093] The preprocessing unit is used to divide the area to be covered into grids, and represent the area to be covered as a set of all divided grids, and according to each candidate placement point in the given set of candidate placement points The number of grids covered calculates the area covered by the candidate placement points.

[0094] The first placement point selection unit is used to select an alternative placement point with the largest coverage as the first wireless router placement point in the area to be covered;

[0095] Subsequent placement point selection unit is used to sequentially select the candidate placement point meeting the following first condition as the next wireless router placement point, until the coverage area of ​​all selected wireless route...

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Abstract

The invention provides a wireless mesh network deployment method and device in city environment. The method comprises: first step, selecting optional displacement point with largest coverage as the first wireless mesh network node displacement point; second step, selecting in turn optional displacement point satisfying following first condition as next displacement point for mesh network node until coverage of all selected wireless router achieving coverage goal; performing horizon communication with at least a wireless mesh network node displacement point of all selected wireless router displacement points; and the distance between optional displacement point and at least a wireless mesh network node displacement point is less than or equal to 3 / 2R, R representing of coverage radius of wireless mesh network node. In the invention, displacement points of wireless mesh network nodes are selected to comprehensively consider coverage demand and connection between wireless mesh network nodes so as to complete deployment of mesh network.

Description

technical field [0001] The present invention generally relates to a method for planning and deploying a wireless mesh network, and more particularly relates to a method for deploying nodes of a wireless mesh network in an urban environment. Background technique [0002] With the rapid development of broadband wireless communication technology, 802.11-based wireless mesh network technology is constantly developing and maturing, and has become an important "last mile" broadband wireless access solution. Wireless mesh network is a new type of broadband wireless network structure. Wireless routers and wireless access points with wireless bridge functions are the core equipment of wireless mesh networks. Wireless routers use wireless channels to communicate with each other through three-layer routing. The technology realizes the interconnection between wireless routers and provides a wireless backbone network; at the same time, the wireless router can also provide a wireless acce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W16/20H04W84/10
Inventor 王春峰吴方
Owner HEWLETT-PACKARD ENTERPRISE DEV LP
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