Self-organized terahertz network-orientated auxiliary type directed communication method and network architecture thereof

Abstract

The invention discloses a self-organized terahertz network-orientated auxiliary type directed communication method which comprises the following steps: a common node acquires own position information in a way of communicating with an anchor node all round; when needing to send data, a sending node avoids a distributed inter-frame spacing first, then starts to monitor an adopted low-frequency channel, and if the channel is occupied, avoids until the channel is empty; the sending node sends an extended request sending frame to a receiving node through a low-frequency all-round antenna, and the receiving node returns a clearing sending frame with the own position information and antenna information to the sending node; the two nodes carry out calculation to obtain a direction and a beam width of the antenna; the sending node sends a test frame to the receiving node through a directed terahertz antenna after waiting an antenna conversion time; after data sending is completed, the receiving node returns an ACK again; and if the sending node receives the ACK successfully, the whole sending process is completed. The invention further discloses network architecture for implementing the method.

Description

Technical field [0001] The present invention belongs to the technical field of terahertz (THz) network data exchange, and particularly relates to a method for an auxiliary directional communication technology for self-organizing terahertz networks to improve the transmission distance and transmission performance of nodes, and is formed for mobile network nodes The self-organizing terahertz network architecture assists in solving the problem of directional antenna matching between nodes through omnidirectional low-frequency communication technology, so as to realize the proposed high-efficiency, energy-saving and high-speed auxiliary directional communication method. Background technique [0002] With the development of Internet technology and technology, a large amount of data needs to be exchanged and transmitted in life. In the past few decades, wireless data transmission rates have doubled every eighteen months to meet the explosive growth of data. According to this trend, in ...

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Problems solved by technology

However, in the self-organizing network, the nodes have mobility and there is no central node, so the method of "rotating" the antenna is very limited in the self-organizing network, so a new method is urgently needed to realize the communication between terahertz nodes. high-speed information transmission

[0005] Due to the high path loss of the terahertz frequency band, the transmission distance of the node is short and the communication is difficult. It is necessary to use a high-gain beamforming directional antenna to assist in communication.

However, terahertz network nodes equipped with directional antennas cannot solve the problem of sending nodes adjusting their antenna direction in time according to the receiving node's position and its antenna direction to perform pairing; at the same time, nodes in ordinary network architectures cannot obtain their own position well The problem of designing an auxiliary directed communication method and its network architecture for self-organizing terahertz networks

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