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A Distributed Adaptive Switching Method of Routing Protocol Based on Network Context Awareness

An adaptive switching and routing protocol technology, applied in the direction of data exchange network, digital transmission system, electrical components, etc., can solve the problems of switching delay, routing protocol can not communicate, switching inaccurate, etc., to eliminate ambiguity and inaccuracy Accuracy, reducing the overhead of pathfinding requests, and overcoming the effect of inaccurate perception

Active Publication Date: 2021-07-02
XIDIAN UNIV
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Problems solved by technology

[0003] However, the existing adaptive routing protocol switching technology still has the following problems: in the design of the adaptive routing protocol, the existing technology still has an imperfect network situation awareness mechanism, unclear routing protocol switching criteria, and communication continuity during the switching process cannot be guaranteed.
On the one hand, these problems will lead to the inability to perceive changes in the network situation in a timely manner, resulting in inaccurate switching or switching delays, and on the other hand, the inability to communicate between different routing protocols, resulting in data being transmitted packet loss

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  • A Distributed Adaptive Switching Method of Routing Protocol Based on Network Context Awareness
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  • A Distributed Adaptive Switching Method of Routing Protocol Based on Network Context Awareness

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[0061] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0062] Adaptive routing protocol, through the comprehensive utilization of different types of routing protocols, such as table-driven and on-demand routing, and adaptive switching of routing protocols according to changes in network situation elements, can realize the optimal selection of routing protocols in different network scenarios .

[0063] Such as figure 1 As shown, the distributed adaptive switching method of routing protocol based on network context awareness provided by the embodiment of the present invention includes the following steps:

[0064] S101: The node periodically obtains its own network status info...

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Abstract

The invention belongs to the technical field of communication routing or path selection, and discloses a distributed adaptive switching method of a routing protocol based on network context awareness, including: a node periodically obtains its own network state information (occupancy rate of MAC layer cache queue group, link Route disconnection rate), realize local network state awareness by interacting state information packets with one-hop neighbor nodes; design routing protocol switching criteria according to prior knowledge and utility function; according to perceived local network state information, use routing The protocol switching criterion selects the appropriate routing protocol in the current situation; adopts the compatibility design between different routing protocols to ensure the normal communication between different protocols. The present invention makes full use of the advantages of the existing table-driven routing protocols and on-demand routing protocols, and through the perception of the network situation and the adaptive routing protocol switching, the delivery rate of data packets can be improved and the overhead of routing protocols can be reduced.

Description

technical field [0001] The invention belongs to the technical field of communication routing or path selection, and in particular relates to a distributed adaptive switching method of a routing protocol based on network context awareness. Background technique [0002] At present, the commonly used existing technologies in the industry are as follows: in wireless communication, a distributed network is an autonomous network composed of a group of mobile nodes dynamically connected through wireless links without the need for network infrastructure. Nodes in the network are mobile, and the topology of the network is constantly changing. Since network scenarios are changing dynamically, routing protocol design is particularly critical at this time. Traditional routing protocols, such as table-driven routing protocols and on-demand routing protocols, are designed for a specific network environment. The table-driven routing protocol is suitable for the network with slow node mov...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W40/02H04L12/721H04L12/741H04L45/74
CPCH04L45/14H04L45/745H04W40/02H04W40/026
Inventor 盛敏刘菲菲孙红光史琰刘博涛李建东张琰刘俊宇文娟
Owner XIDIAN UNIV
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