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Multi-node ad hoc network transmission simulation method and simulation system based on AODV protocol

A simulation method and multi-node technology, applied in transmission system, digital transmission system, network topology, etc., can solve the problems of inability to simulate the communication situation of multi-node and large difference.

Active Publication Date: 2021-12-03
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technology uses an algorithm called Real Node (RN) that simulates wireless networks without actually transmitting data over them or requiring any special equipment like routers at all times during its operation. It also includes a way to send commands from one device to another through different devices instead of directly sending their signals back across wired connections. By doing this simulations we are able to verify how well certain things will be done before they go wrong due to differences in factors such as distance travelled along paths caused by varying distances between transmitter locations and receiver location points.

Problems solved by technology

Technological Problem: Current methods for testing routers' behavior involve simulations that require significant resources at both ends of the system. Additionally, they often result in instability issues where some connections fail even while others remain alive. Existing solutions have limitations in terms of accuracy and reliance.

Method used

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  • Multi-node ad hoc network transmission simulation method and simulation system based on AODV protocol
  • Multi-node ad hoc network transmission simulation method and simulation system based on AODV protocol
  • Multi-node ad hoc network transmission simulation method and simulation system based on AODV protocol

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specific Embodiment approach 1

[0034] Specific implementation mode one: the specific process of the simulation method of the multi-node ad hoc network transmission based on the AODV protocol in this embodiment is as follows:

[0035] Step 1: Use four real physical nodes to establish a simulation scenario, one of which represents the communication source node, one node represents the communication destination node, one node represents the relay node between the source node and the destination node, and one node represents the relay node The server node that the node sends the command to;

[0036] The specific topology and information flow are as follows: figure 1 shown;

[0037] Step 2: Run the communication program for instruction transmission on the relay node and the server node;

[0038] Step 3: Shield the path between the source node and the destination node, so that the source node and the destination node cannot discover each other during networking;

[0039] Step 4: Run the AODV routing protocol o...

specific Embodiment approach 2

[0045] Embodiment 2: The difference between this embodiment and Embodiment 1 is that in the second step, the communication program for command transmission is run on the relay node and the server node; the specific process is:

[0046] Step 21: The server node uses the instruction transmission communication program to send the instruction;

[0047] Step 22: The relay node uses the command transmission communication program to receive the command.

[0048] Other steps and parameters are the same as those in Embodiment 1.

specific Embodiment approach 3

[0049] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that in the step 21, the server node uses the instruction transmission communication program to send the instruction; the specific process is:

[0050] The communication program of command transmission requires the server node to send the transmission command to the relay node, and the command includes hop count information and transmission delay information;

[0051] When the server node has an instruction to be transmitted to the relay node, the server node will call the time information to display the time when the server node sends the information, and at the same time send the information to the relay node through the port and display the IP address of the server node to the middle Subsequent node IP address sending and sending instruction content;

[0052] The content of the sending instruction is hop count information and transmission delay information.

[0053] The specific flow chart...

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Abstract

The invention discloses a Multi-node ad hoc network transmission simulation method and simulation system based on AODV protocol, and relates to the simulation method and the simulation system for the multi-node ad hoc network transmission. The invention aims to solve the problems that the communication condition during multi-node communication cannot be simulated when a real node is limited by physical conditions, and a network scene simulated by simulation software is greatly different from a real physical world. The method comprises the following steps of: 1, establishing a simulation scene by using four real physical nodes; 2, running a communication program for instruction transmission on the relay node and the server node; 3, shielding a path between the source node and the destination node, so that the source node and the destination node cannot discover each other during networking; 4, running an AODV routing protocol capable of simulating hop count increase during multi-node communication on the source node, the relay node and the destination node; and 5, running a communication program for data transmission on the source node, the relay node and the destination node. The invention is applied to the simulation field of multi-node ad hoc network transmission.

Description

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Claims

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Application Information

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Owner HARBIN INST OF TECH
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