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Design method of greedy multicast routing protocol in 3D scene

A routing protocol and three-dimensional scene technology, applied in the field of greedy multicast routing protocol design, can solve the problems of not considering the forwarding effect of nodes, unable to select forwarding priority, etc., to achieve increased data delivery rate, efficient and accurate evaluation and screening, The effect of ensuring reliability

Active Publication Date: 2022-03-04
XIDIAN UNIV
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Problems solved by technology

In most existing works, nodes only decide whether to participate in packet forwarding based on their geographical location, that is, "area" is preferred, but this method does not take into account the actual forwarding effect of the node, and cannot give priority to selecting those with good forwarding "performance". node

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  • Design method of greedy multicast routing protocol in 3D scene
  • Design method of greedy multicast routing protocol in 3D scene
  • Design method of greedy multicast routing protocol in 3D scene

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Embodiment Construction

[0029] The implementation steps of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0030] In the system model based on the present invention, the location information of the node is obtained through the GPS device equipped by itself; all other nodes within the communication range of the node are called the neighbor nodes of the node; the source node obtains the destination node information through the location service system, And combined with the ideal information interaction mechanism to obtain the information of its neighbor nodes.

[0031] refer to figure 1 , the implementation steps of the present invention are as follows:

[0032] Step 1, the current node m generates a set of candidate next-hop forwarding nodes CF(m) according to the size relationship between the neighbor nodes and its own equivalent one-hop forwarding speed value V.

[0033] (1a) Calculate the equivalent one-hop forwarding speed V corres...

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Abstract

The invention discloses a greedy multicast routing protocol design method in a three-dimensional scene, which mainly solves the problems of low delivery rate, high time delay and large routing overhead in the prior art. The implementation plan is: calculate the equivalent one-hop forwarding speed of neighbor nodes, and use it to filter out the candidate next-hop forwarding node set CF(m) of the current node; establish a reliability evaluation model based on Beta distribution, and use this model to evaluate The node with the largest equivalent one-hop forwarding speed value in CF(m); dynamically adjust CF(m) based on the calculated reliability value to filter out the actual set of next-hop forwarding nodes, and forward the data packets to the next All nodes in the one-hop forwarding node set. The invention improves the packet delivery rate, reduces the average end-to-end time delay and unified routing overhead. It can be applied to the communication between UAVs in the three-dimensional high-dynamic UAV ad hoc network.

Description

technical field [0001] The invention belongs to the field of communication technology, and further relates to a greedy multicast routing protocol design method, which can be used for communication between drones and drones in a three-dimensional high-dynamic drone ad hoc network, and can be implemented between drones Real-time and effective information exchange. Background technique [0002] UAV self-organizing network is an emerging technology that can be applied in military, public or civilian fields. For UAVs, it can move at high speed not only in a two-dimensional plane but also in a three-dimensional space in a random or formation manner. It is generally believed that it belongs to the field of three-dimensional high dynamic network. For any type of network, end-to-end data transmission is the basis for developing various applications, and further involves the key technology of routing protocol design. Generally, routing protocols in wireless ad hoc networks can be c...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W40/02H04W40/22H04W40/24H04W84/18
CPCH04W40/026H04W40/22H04W40/24H04W84/18
Inventor 蔡雪莲汪素黄鹏飞李长乐
Owner XIDIAN UNIV
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