Mine multi-policy hybrid route repair protocol based on WMN

A routing protocol, multi-strategy technology, applied in transmission system, network topology, wireless communication and other directions, can solve problems such as poor robustness and low network connectivity, and achieve the effect of reducing packet loss and delay, and repairing routes

Active Publication Date: 2017-05-03
CHINA UNIV OF MINING & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to the narrow and long underground roadway, the underground network...

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  • Mine multi-policy hybrid route repair protocol based on WMN
  • Mine multi-policy hybrid route repair protocol based on WMN
  • Mine multi-policy hybrid route repair protocol based on WMN

Examples

Experimental program
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Embodiment Construction

[0048] The routing protocol proposed by the invention includes four parts: network initialization, information maintenance between nodes, routing establishment and routing maintenance.

[0049] Step A, network initialization:

[0050] In step A-1, the node establishes a neighbor table and a routing table, and applies for memory space for it.

[0051] Step A-2, initialize the serial number of the node, set the HELLO message timer, neighbor cache timer, route cache timer and other related timers.

[0052] Step A-3, the node initializes the HELLO data packet.

[0053] Step B, information maintenance between nodes:

[0054] Nodes regularly exchange information through HELLO data packets and maintain neighbor tables. If the node receives the HELLO message sent by the node, it will check whether the neighbor exists in the neighbor table, and if it does not exist, it will be added to the neighbor table. If a HELLO message from a neighbor node in the neighbor table has not been re...

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Abstract

The invention provides a mine multi-policy hybrid route repair protocol based on WMN. The protocol comprises network initialization, inter-node information maintenance, route establishment and route maintenance. In the route maintenance phase, repair is carried out in advanced before a link is broken. Due to the fact that network expense of the practice is very small, route is repaired with small impact on the network performance. When advanced repair is failed, small-range rapid repair and secondary repair after failed rapid repair are carried out. In the repair process, nodes of higher success rate are selected to the greatest extent to carry out route repair, and the expense is small. The protocol proposes a more comprehensive solution for a variety of network topology faults, can effectively repair route with small impact on the network, and has a better effect on the network in a complex environment.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a WMN-based underground multi-strategy mixed restoration routing protocol. Background technique [0002] With the coal mining and roadway excavation, the coal mining face and the tunneling face in the coal mine are constantly advancing. It is a mobile working environment, and the underground environment is harsh and the mining conditions are complex. The wired communication network cannot reach these special areas, because the wired nodes are affected. The limitation of its data transmission method makes the deployment and control range of the wired link limited, which is easily restricted by environmental factors, and the monitoring points of the wired network are limited, so it is impossible to monitor disaster information in these areas in an all-round way. Due to the poor expandability of the wired network and the relatively weak ability to respond to faults, i...

Claims

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Application Information

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IPC IPC(8): H04L12/703H04W40/04H04W40/12H04W40/24H04W84/18H04L45/28
CPCH04L45/28H04W40/04H04W40/125H04W40/248H04W84/18Y02D30/70
Inventor 江海峰韩广智吕恋生
Owner CHINA UNIV OF MINING & TECH
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