Wireless communication networking method of long single-chain structure for underground roadway environment

Abstract

The invention relates to a wireless communication networking method of a long single-chain structure for an underground roadway environment, and belongs to the field of wireless communication application, which comprises the following steps: S1, deploying relay node equipment on site in the roadway environment, and forming a wireless network by adopting a long single-chain topological structure; S2, setting a sequence number for each relay node equipment, and controlling the sequence numbers to be sequentially increased from a starting point along the chain; and S3, enabing the relay node equipment to automatically calculate and select a proper frequency according to the sequence number of the relay node equipment, and automatically turn on the antenna with the proper frequency. Through anetworking mode of configuring sequence conditions, in a long single-chain network, two hops formed by continuous nodes are transmitted and received by using two frequencies, and different frequenciesare adopted for transmission between the hops, so that the condition that the bandwidth is continuously halved along with the hop count due to time division duplex is avoided. Only the correspondingfrequency antenna is turned on according to the rule between any two nodes, and only the overhead of data exchange exists in single-node equipment, so that the problems of bandwidth occupation and time delay increase caused by the calculation overhead are reduced.

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 roadway environment. Background technique [0002] Ad hoc network wireless communication equipment is used to form a network in narrow, long, short and narrow enclosed spaces, such as underground roadways, especially when node routers are deployed in roadways to form a long single-chain network, and the entire network presents a zigzag shape. [0003] There are two important indicators for wireless communication in this environment, one is the wireless transmission distance between two nodes, and the other is the network capacity maintained after multiple hops of relays. [0004] In the roadway environment, wireless communication technology generally uses electromagnetic waves as a means of wireless communication. The roadway environment is a confined space, and t...

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

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