Mobile communication node networking control method based on directional antenna

Abstract

The invention discloses a mobile communication node networking control method based on a directional antenna. In the invention, a communication connection is established between the mobile nodes by using a bi-directional neighbor discovery method, and then the synchronous communication time is distributed to the mobile node and the neighbor node by using the TRC method, so as to maintain the communication connection between the mobile nodes; subsequently, during a period T2, the synchronous communication between the nodes is controlled by using a synchronous time control method so as to keep the communication connection between the nodes, and then the communication time is distributed to the mobile nodes by using the DTRC method; and finally, in a period T3, the communication between the nodes is controlled by using the bi-directional communication control method, and data exchange between the nodes is realized by using a data transmission control method, so as to realize communication between the nodes. The invention adopts a directional antenna to receive and send communication, and therefore, the communication distance between two parties is increased, the communication efficiency is improved, the conflict probability of the channels during the communication between the nodes is reduced, and the channel utilization rate and the communication efficiency are improved.

Description

technical field [0001] The present invention relates to a network control method suitable for mobile Ad Hoc networks, more particularly, a method for network control of mobile nodes (vehicle nodes) based on directional antennas. Background technique [0002] The Ad Hoc network is a wireless network composed of mobile nodes capable of communicating with each other. This network is often used in disaster recovery, survivor search and rescue, and other environments where wired networks are not available or difficult to function. [0003] There are two types of antennas used by nodes in the Ad Hoc network: omnidirectional antennas and directional antennas. [0004] The omnidirectional antenna has a 360° radio frequency range, so there is no need to point the antenna to the opposite end during communication. An omnidirectional antenna sends signals of the same strength in all directions, so its signal coverage area is approximately a circle, but since the receiver only exists i...

AI Technical Summary

Problems solved by technology

[0006] However, directional antennas can only send and receive signals at specific angles. Therefore, the prerequisite for communication between mobile nodes is that the directional antennas of the two mobile nodes are aligned with each other. Otherwise, the signals sent by the other party cannot be received.

However, in the Ad Hoc network, since the two parties in the communication are in irregular movements, the two parties in the communication do not know the position of the other party, and they cannot point their directional antennas at the other party, so it is necessary to propose a method that makes The two parties in communication can point their directional antennas to each other without knowing the exact location of the other party

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