A wireless communication networking method with long single-chain structure for underground roadway environment

Abstract

The present invention relates to a wireless communication networking method with a long single-chain structure used in an underground roadway environment, belonging to the field of wireless communication applications. S1: Deploy relay node equipment on-site in the roadway environment, and use a long single-chain topology to form a wireless network ;S2: Set the sequence number for each relay node device, and control the sequence number to increase sequentially along the chain from the starting point; S3: The relay node device automatically calculates and selects the appropriate frequency according to its own sequence number, and automatically turns on the appropriate frequency antenna. By configuring the networking method of sequential conditions, in the long single-chain network, two frequencies are used for sending and receiving between two hops formed by consecutive nodes, and different frequencies are used for transmission between each hop, which avoids bandwidth hopping caused by time-division duplexing The number keeps halving. Between any two nodes, only the corresponding frequency antennas are turned on according to the rules, and there is only data exchange overhead in the single-node device, which reduces the occupied bandwidth and increased delay caused by these computing overheads.

Description

technical field [0001] The invention belongs to the field of wireless communication applications, and relates to a wireless communication networking method with a long single-chain structure used in an underground tunnel environment. Background technique [0002] In narrow, long, narrow and closed spaces, such as underground tunnels, ad hoc wireless communication devices are used to form a network, especially when node routers are deployed in tunnels to form a long single-chain network, and the entire network presents a polyline shape. [0003] There are two important indicators of wireless communication in this environment, one is the wireless transmission distance between two nodes, and the other is the network capacity maintained after relaying multiple hops. [0004] In the roadway environment, wireless communication technology generally uses electromagnetic waves as a means of wireless communication. The roadway environment is a restricted space, and the propagation of...

AI Technical Summary

Problems solved by technology

[0007] Question 1. Time-division overhead caused by time-division duplexing of single-antenna and single-frequency nodes:

It can be seen from this that when the time division duplex technology is applied to the wireless network communication of the long single-chain structure, it will directly cause the time-sharing overhead of the nodes, resulting in the phenomenon that the network bandwidth is reduced exponentially as the number of hops increases.

[0015] Question 2. Computational overhead caused by wireless communication protocol execution:

During the step-by-step forwarding process of these control data in the long single-chain structure, repeated control data may be generated after each jump, causing all control data to occupy too much channel bandwidth and occupy the normal data bandwidth.

The phenomenon that the data bandwidth of the entire network is very low after multiple hops

In addition, there are wireless communication protocols at the network layer, as well as the overhead caused by dynamic routing calculations, which will inevitably lead to communication delays

Images