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High-real-time data broadcast distribution method for wireless ad hoc network

A wireless self-organization and real-time data technology, applied in wireless communication, network topology, electrical components, etc., can solve the problems of large distribution delay and redundant transmission, and achieve the goals of shortening time, improving real-time performance, and reducing broadcast redundancy Effect

Active Publication Date: 2020-04-21
NO 30 INST OF CHINA ELECTRONIC TECH GRP CORP
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0007] In order to overcome the above-mentioned shortcomings of the prior art, the present invention provides a wireless ad hoc network high-real-time data broadcast distribution method, which solves the problem of traditional flooding, multi-point relay, etc. The distribution method has the disadvantages of a large number of redundant transmissions and excessive distribution delay

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  • High-real-time data broadcast distribution method for wireless ad hoc network
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Embodiment Construction

[0022] In order to realize high-real-time data broadcast distribution in a wireless ad hoc network, the technical scheme adopted by the present invention is as follows:

[0023] It is assumed that the nodes in the network obtain the complete topological connection relationship between the nodes in the network through topology learning. For the convenience of description, we use an undirected graph G=(V, E) to represent the topological connection of the network, where V is the set of nodes in the network, and E is the set of connections between nodes in the network. For two nodes u and v connected by one hop in the network, e(u,v) represents the connection between nodes u and v, and e(u,v)∈E. Let N(u) denote the set of one-hop neighbor nodes of node u, N 2 (u) represents the set of two-hop neighbor nodes of node u, and |A| represents the number of elements in set A.

[0024] In order to realize the broadcast distribution of data transmission from the source node s to all other node...

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Abstract

The invention discloses a high-real-time data broadcast distribution method for a wireless ad hoc network. The method comprises the following steps: step 1, constructing a spanning tree: constructinga broadcast distribution tree which takes a source node as a root and takes nodes in a set R as branch nodes, so that message data to be broadcasted starts from the source node, is subjected to relayforwarding along each branch node of the broadcast distribution tree and then is transmitted to each node in a network; step 2, planning transmission resources: on the basis of combining a node relayforwarding sequence, allocating the transmission resources to the nodes in the set R so as to maximize multiplexing of the transmission resources; and step 3, data broadcast distribution: notifying the nodes in the set R and the transmission resources allocated to the nodes to the corresponding nodes in the network, and correspondingly forwarding the received nodes according to the notified content. According to the method, the problems of a large amount of redundant transmission and overlarge distribution delay of a traditional method in a multi-hop ad hoc network are effectively solved, andthe method is a data broadcast distribution method with high real-time transmission.

Description

Technical field [0001] The invention belongs to the technical field of wireless ad hoc network communication, and specifically relates to a method for realizing high-real-time data broadcast distribution in a wireless ad hoc network. Background technique [0002] Broadcasting is a common communication requirement in wireless ad hoc network communication, such as the announcement of important information, the delivery of instructions, and the search for calling users. The goal of broadcast communication is to transmit the message data sent by the source node to all other nodes in the network. A wireless ad hoc network is a network that can be quickly deployed and flexibly formed. Its network topology may be constantly changed due to changes in the location of nodes and the communication environment, and the communication relationship between nodes is a multi-hop mesh connection relationship. In the wireless ad hoc network, the broadcast communication problem is a big challenge. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W40/12H04W40/22H04W40/24H04W40/32H04W84/18
CPCH04W40/22H04W40/32H04W40/246H04W40/12H04W84/18
Inventor 毛建兵张浪赖增桂白维学郑重
Owner NO 30 INST OF CHINA ELECTRONIC TECH GRP CORP
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