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Hierarchical Ad hoc on-demand distance vector (AODV) routing method

A technology for routing and requesting packets, applied in the field of AODV routing solutions, it can solve problems such as congestion, and achieve the effect of prolonging the survival time and reducing the phenomenon of congestion.

Inactive Publication Date: 2011-07-06
江苏中企教育科技股份有限公司
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Problems solved by technology

[0006] The purpose of the present invention is to propose a reasonable routing method in the routing discovery process to solve the frequent occurrence of congestion and node death in the ground tactical network, and to reserve energy for emergency communications during wartime to improve Network lifetime and quality of service

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  • Hierarchical Ad hoc on-demand distance vector (AODV) routing method

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Embodiment Construction

[0025] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0026] figure 1 Shown is the traditional AODV routing response process. The current node receives the routing request message PREQ, first judges whether it is the destination node, and then judges whether the current node has a routing item to the destination node, and then forwards the routing request message PREQ. figure 2 Then, the improved method proposed by the present invention is used in the routing response process. Comparing the two, it can be found that figure 2 Mainly added 4 functional modules: business identification module, information collection module, load and energy grading module, judgment and forwarding module. Compared with the original routing method, although four modules are added, the co...

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Abstract

The invention relates to a hierarchical Ad hoc on-demand distance vector (AODV) routing method based on bandwidth, capacity and energy perception, which comprises the following steps that: a source node transmits an AODV routing request message; after receiving the routing request message, a current node identifies the service type and requist band of the request message, and simultaneously queries and calculates own available bandwidth, capacity and energy residual ratio; and the current node ranks own capacity and energy residual ratio into three respectively, and selects a destination node for the immediate forwarding, delayed forwarding or discarding of the routing request message according to the ranks of the capacity and the energy residual ratio and the service type of the routing request message. By the method, nodes with relatively higher capacity and low energy can be bypassed in routing established by a network, congestion phenomena can be greatly reduced, the time to live of the network can be prolonged, and simultaneously the energy is reserved for emergency services in each node to ensure the needs of the emergency communication services in wartime.

Description

technical field [0001] The invention relates to an AODV routing scheme for reducing congestion, prolonging network survival time, and ensuring wartime emergency service communication by adopting a hierarchical strategy of perceived bandwidth, load, and energy in a highly dynamic ground tactical network, belonging to mobile Ad hoc network routing technology field. Background technique [0002] The ground tactical network is a self-organizing, highly dynamic, multi-hop wireless mobile self-organizing network composed of soldiers, ground vehicles and other sensor nodes and command centers. Since the combat scenarios in the ground environment change rapidly, the links between nodes are often unreliable, which makes it a great challenge for us to design an effective and reliable routing protocol. The AODV routing protocol is one of the routing protocols recommended by the MANET (Mobile Ad Hoc Network) working group of the IETF. It is an on-demand routing protocol. Compared wit...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04W40/10H04W84/18H04L12/721
CPCY02D30/70
Inventor 张登银陈召国程春玲
Owner 江苏中企教育科技股份有限公司
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