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Route maintenance method for unidirectional emergency communication wireless network

An emergency communication and wireless network technology, which is applied in the field of routing maintenance of one-way emergency communication wireless network, can solve the problems of being vulnerable to geographical environment, weather, inability to find routes flexibly, and unable to provide reliable routes for emergency information transmission, etc., to achieve flexible Find the route, quickly adapt to the network topology, and reliably complete the effect

Inactive Publication Date: 2019-03-01
赵丽妍
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Problems solved by technology

[0003] Although the existing wireless communication link network can achieve high-speed and effective data transmission under ideal conditions, it is easily affected by geographical environment and weather, and does not have the characteristics of flexible routing and fast adaptation to unknown network topologies. In underground emergency situations, it is impossible to provide reliable routing for the transmission of emergency information in unknown environments

Method used

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  • Route maintenance method for unidirectional emergency communication wireless network
  • Route maintenance method for unidirectional emergency communication wireless network
  • Route maintenance method for unidirectional emergency communication wireless network

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Embodiment 1

[0058] This embodiment provides a routing maintenance method for a one-way emergency communication mobile wireless network, such as figure 1 , the overall process is as follows:

[0059] A. Establish as figure 2 The one-way emergency communication mobile wireless network model is analyzed, and the possible data exchange routes of the one-way network under this model are analyzed, and the communication mode of the on-demand routing protocol is determined;

[0060] (1) In one-way network communication G=(V,E), when data is exchanged between two hosts, there are the following information exchange modes:

[0061] a) Among them, host B can directly receive the data information sent by host A, but host A cannot directly receive the information sent by host B; (A, B) is called a one-way link, and A is the upstream host of B, and B is A The downstream host of , the network with the unidirectional link is a unidirectional network;

[0062] b) This mode is a hybrid unidirectiona...

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Abstract

The invention relates to a route maintenance method for a unidirectional emergency communication wireless network, solving the technical problem that a route cannot be flexibly found and an unknown network topological structure cannot be quickly adapted. A unidirectional emergency communication wireless network model is built, and all data exchange routes of a unidirectional network in the unidirectional emergency communication mobile wireless network model are computed, so that a routing protocol is determined on demand; a node serial number is used for recording a route request sent by a host, the route is selected according to an adjacency relation and a distance between the hosts, and the most stable data exchange path with the shortest distance is acquired; identity authentication ofeach host node is completed by using a unidirectional Hash chain, data exchange route maintenance is perform via a periodical message of the routing protocol on demand. According to the method, the technical scheme of maintaining the effective route of the current network in real time by using the bidirectional accessibility of the unidirectional mobile network, so that the problem is well solved,and the method can be applied to emergency communication.

Description

technical field [0001] The invention relates to the field of network communication and data transmission, in particular to a route maintenance method for a one-way emergency communication wireless network. Background technique [0002] In recent years, the emergency communication security system has made great progress in the construction of the public network, but there is still a big gap between the application and the actual demand in the field of wireless ad hoc network technology; [0003] Although the existing wireless communication link network can achieve high-speed and effective data transmission under ideal conditions, it is easily affected by geographical environment and weather, and does not have the characteristics of flexible routing and fast adaptation to unknown network topologies. In underground emergency situations, it is impossible to provide reliable routing for the transmission of emergency information in unknown environments. [0004] The invention pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W12/06H04W40/14H04L12/733H04L12/725H04L12/721H04W4/90H04L45/122
CPCH04L45/122H04L45/126H04L45/306H04W12/06H04W40/14H04L45/70H04L45/123H04W4/90
Inventor 赵丽妍
Owner 赵丽妍
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