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Routing protocol distributed adaptive switching method based on network context awareness

An adaptive switching and routing protocol technology, applied in data exchange networks, digital transmission systems, electrical components, etc., to solve problems such as inaccurate switching, inability to communicate with routing protocols, and unclear routing protocol switching criteria.

Active Publication Date: 2018-09-07
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 existing technology, there are still imperfect network situation awareness mechanisms in the design of adaptive routing protocols, 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 handover or handover delay and other problems. packet loss

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  • Routing protocol distributed adaptive switching method based on network context awareness
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  • Routing protocol distributed adaptive switching method based on network context awareness

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Embodiment Construction

[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 scenario 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 infor...

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Abstract

The invention belongs to the technical field of communication routing or route selection and discloses a routing protocol distributed adaptive switching method based on network context awareness. Themethod comprises the following steps: a node periodically acquires own network state information (MAC layer buffer queue group occupation rate, link disconnection rate), performs interaction of stateinformation packets with one-hop neighboring node and then realizes local network state awareness; a routing protocol switching criteria is designed according to a priori knowledge and a utility function; according to the local network state information obtained by awareness, the routing protocol most suitable in the current context is selected through the routing protocol switching criteria; andnormal communication among different protocols is guaranteed by compatibility design among the different protocols. The method provided by the invention makes full use of the advantages of the existing table driving routing protocols and on-demand routing protocols, realizes awareness to the network contexts and performs adaptive routing protocol switching, and consequently can promote delivery rate of data packets and reduce overhead of routing protocols.

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 existing technologies commonly used 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 mo...

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Application Information

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Patent Type & Authority Applications(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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