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HWMP-based double route cooperation method

A wireless mesh and routing technology, applied in the field of communication, to achieve the effect of improving transmission performance

Inactive Publication Date: 2016-07-13
XIDIAN UNIV
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Problems solved by technology

[0004] The purpose of the present invention is to address the above-mentioned deficiencies in the prior art, and propose a hybrid wireless mesh protocol HWMP dual-routing cooperation method to solve the problem that the communication between the internal node and the external node in the wireless Mesh network must be forwarded through the gateway node problem, reduce transmission delay, and improve service performance

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Embodiment Construction

[0026] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0027] refer to figure 1 , the hybrid collaborative network consists of a wireless Mesh network and a wired network.

[0028] In a wireless Mesh network, node 1 is a gateway node, and nodes 2, 3, 4, 5, 6, and 7 are common Mesh nodes, and the above Mesh nodes can communicate with each other through wireless transmission.

[0029] Node X in the wired network can communicate with node 1 in the Mesh network through wired transmission.

[0030] refer to figure 2 , for the present invention based on figure 1 The network implements the hybrid wireless mesh protocol HWMP dual-route cooperation, and the steps are as follows:

[0031] Step 1, establish a priori tree routing.

[0032] The key of the present invention is to choose the structure of routing. In the prior art, only one of prior tree routing or on-demand routing is selected for data transmission. The present i...

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Abstract

The invention discloses an HWMP-based double route cooperation method. With the method, a problem that forwarding for internetwork node communication needs gateway nodes in the prior art can be solved. The method comprises: step one, a prior tree route is established; step two, a node identifier is added to a data frame by a source node and whether a route connected to a destination node exists is searched in a route table; step three, according to a searching result, the data frame is forwarded to the destination node or a root node; step four, the root node searches whether a route connected to the destination node exists in the route table to set a destination node type so as to carry out data forwarding; and step five, after the destination node receives the data frame, whether an on-demand route is triggered is determined based on the identifier in the data frame; and if so, the data frame is sent according to an optimal route; and otherwise, the data frame is sent according to an original route. Therefore, the transmission delay is reduced; and the data sending performance is improved. The method can be applied to the communication services of nodes in the internet and internetwork nodes in a wireless mesh network.

Description

technical field [0001] The invention belongs to the technical field of communication, and further relates to a hybrid wireless mesh protocol HWMP dual-routing cooperation method, which can be used in various wireless Mesh backbone networks, effectively combines the advantages of two types of routing modes, and satisfies the continuously improving inter-network node communication business requirements. Background technique [0002] The Hybrid Wireless Mesh Protocol (HWMP) is the default routing protocol for wireless Mesh networks in the 802.11s standard. HWMP provides two routing modes, proactive tree routing and on-demand routing. These two routing modes are not independent, and nodes can work in both modes at the same time, that is, hybrid routing mode. The HWMP protocol is a hybrid routing mechanism based on a priori expanding tree, which saves the time delay of the path discovery process for the transmission of the first data frame. The 802.11s-based wireless Mesh netw...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/715H04L12/721H04L12/741H04L12/753H04L12/755H04L45/74
CPCH04L45/021H04L45/04H04L45/14H04L45/48H04L45/54
Inventor 刘乃安贾小慧
Owner XIDIAN UNIV
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