Routing information acquisition and transmission method for wireless mesh network

A wireless mesh network and transmission method technology, applied in wireless communication, electrical components and other directions, can solve the problem of low efficiency of routing information transmission mechanism, and achieve the effect of reducing the overhead of data packet header and MAC frame header, reducing overhead and improving efficiency

Inactive Publication Date: 2011-11-09
SOUTH CHINA UNIV OF TECH
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  • Abstract
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  • Application Information

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Problems solved by technology

However, the efficiency of this routing information transmission mechanism at the network layer is not high.

Method used

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  • Routing information acquisition and transmission method for wireless mesh network
  • Routing information acquisition and transmission method for wireless mesh network
  • Routing information acquisition and transmission method for wireless mesh network

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Embodiment Construction

[0026] The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings, but the implementation and protection scope of the present invention are not limited thereto.

[0027] In this embodiment, the node PHY layer and the MAC layer adopt the wireless Mesh network of the IEEE 802.16d Mesh protocol, and the network layer adopts the improved OLSR protocol (optimized link state routing protocol), that is, the OLSR routing protocol that applies the method of the present invention, specifically Process such as figure 1 .

[0028] After the node is connected to the network, such as figure 1 , the MAC layer of each node in the network periodically or aperiodically exchanges link connectivity information with the MAC layers of surrounding neighbor nodes to obtain MAC-neighbor connectivity information.

[0029]The MAC layer uses the IEEE 802.16d Mesh protocol. There are many signaling interactions when a new node acce...

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Abstract

The invention discloses a routing information acquisition and transmission method for a wireless mesh network. In the method, the realization process of information interaction required by maintaining link connectivity among adjacent nodes in a wireless Mesh network media access layer and the realization process of inter-node routing information interaction in a network layer are combined together by using a cross-layer design, thereby reducing total overhead in bandwidth resources and operation time in the information interaction processes and increasing the utilization rate of network resources by improving the routing information acquisition and transmission efficiency.

Description

technical field [0001] The invention relates to the technical field of wireless mesh network, in particular to a mechanism / method for acquiring and transferring routing information in a wireless network. Background technique [0002] In recent years, the wireless network access business has developed rapidly. As a new network structure, wireless Mesh network is receiving extensive attention and high attention. Wireless Mobile Mesh Network (WMMN) is one of the most complicated application scenarios. Because of its irreplaceable role in special environments, it quickly attracted the attention of the academic and engineering circles in the industry, and became a hot technology at present. The MAC (Media Access Layer) protocol research and routing protocol research based on WMMN are becoming scholars. hotspots of our research. Wireless mobile Mesh networks are generally used in emergency communications, military and police systems that are difficult to implement and cover with ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W40/02H04W40/24
Inventor 冯穗力黄谨郭销淳陆宏治柯峰黄昭文
Owner SOUTH CHINA UNIV OF TECH
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