Three-dimensional RIS-assisted coal mine communication and inductance integrated network optimization method and device

Abstract

The invention provides a three-dimensional RIS-assisted coal mine communication and inductance integrated network optimization method and device, and relates to the field of communication technologies and coal mine safety detection. Comprising the steps that a coal mine communication network model with a three-dimensional intelligent surface is established, and the model comprises the three-dimensional intelligent surface, a user needing communication, a sensing area, a small portable sensing integrated base station and a ground data center; the method comprises two optimization algorithms: 1, optimizing a perception communication time distribution strategy in a coal mine communication network model; secondly, the reflection coefficient matrix of the three-dimensional intelligent surface is optimized; on the premise of ensuring basic communication requirements of a coal mine, coal mine safety information is sensed and detected more effectively; on the premise of real-time monitoring at the corresponding security level, more information can be sensed as much as possible; and the RIS phase shift matrix is optimized to improve the channel condition, so that the communication efficiency is maximized. When a dangerous accident such as a collapse event occurs in a coal mine, the RIS can obtain accident information according to the change of the sensing information so as to reduce the casualty probability.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a three-dimensional RIS-assisted coal mine synaesthesia integration network optimization method and device. Background technique [0002] Under the high data rate requirements, people have to continuously increase the communication frequency, resulting in the intersection of communication frequency and radar frequency, and the spectrum becomes more and more crowded. Existing technologies on the one hand develop efficient interference management techniques so that two separately deployed systems can operate smoothly without interfering with each other; on the other hand, these two functions are physically integrated in one system, but they use two dedicated Hardware components or two different waveforms, superimposed or separated in time, frequency or space domain. These two methods are only loose integration of communication functions and perception functions, without sha...

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Problems solved by technology

[0006] Aiming at the problem of how to optimize the RIS phase shift matrix in the prior art to maximize the channel gain through the RIS, and how to determine the sensing times of each area to minimize the delay of sensing information under different security levels, the present invention proposes a three-dimensional RIS Auxiliary coal mine synesthesia integration network optimization method and device

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