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Method and device for improving the management of wireless mesh networks

A technology of wireless mesh network and transmission rate, applied in the direction of network traffic/resource management, network planning, wireless communication, etc., can solve the problem of underestimation, and achieve the effect of precise RNP optimization process

Inactive Publication Date: 2012-03-14
HUAWEI TECH CO LTD
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  • Application Information

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Problems solved by technology

[0007] In the prior art, only one modulation and coding scheme (MCS) is considered for each link, while IEEE 802.11a / g has eight MCSs. This simplification can only be used in networks without Rate Adaptation (RA). Otherwise it will lead to underestimation

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  • Method and device for improving the management of wireless mesh networks
  • Method and device for improving the management of wireless mesh networks
  • Method and device for improving the management of wireless mesh networks

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Embodiment Construction

[0018] The technical solutions in the embodiments of the present invention will be clearly and comprehensively described below with reference to the figures in the embodiments of the present invention. Obviously, the described embodiments are only some but not all embodiments of the present invention. Any other embodiments that can be conceived by a person skilled in the art with the help of the embodiments of the present invention without any creative effort shall be within the scope of the present invention.

[0019] The biggest challenge faced by the WMN model based on IEEE 802.11 is the complex interaction between links. An important property is the effective rate r(i, j) of a link i to j, defined as the average number of data bits i can successfully transmit to j per second. First, the rate depends on the selected MCS and the overhead from the IEEE 802.11 channel access procedure (eg, frame header and acknowledgment packets). Second, r(i,j) depends on the interference o...

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Abstract

The present invention discloses a method for calculating transmission rate for wireless mesh network. The comprising: getting the interference probability distribution according to the traffic load and the current rate of links; getting SINR according to the interference probability distribution; determining the MCS according to the SINR; and determining the transmission rate according to the MCS.

Description

technical field [0001] The present invention relates to Wireless Local Area Networks, and more particularly to a method and apparatus for improving the management of Wireless Mesh Networks. Background technique [0002] The standard IEEE 802.11 on wireless local area network (WLAN) was originally designed for a small unmanaged network composed of one access point (Access Point; AP) and one or more stations (Station; STA). More recently, they have been increasingly used to provide wireless Internet access to larger areas, such as city centers. Since the service area of ​​an AP's service area is limited due to high path loss and low transmission power, multiple APs are used to expand the service area. In order to reduce the cost of the wired backbone network between APs, wireless mesh networks (WMNs) are introduced to replace wired cables with radio. In WMN, mesh points (Mesh Points; MP) are used to multi-hop forward data from neighboring APs (possibly across other MPs) to S...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W16/00
CPCH04L41/142H04L43/0894H04W28/22
Inventor 张慧敏李文俊周元萨贝司提纳·马克思臧云鹏波恩汉德·沃克
Owner HUAWEI TECH CO LTD