Intelligent emergency communication system based on RIS

An emergency communication and intelligent technology, applied in the field of communication, can solve the problems of communication quality impact and obstacles to the smooth establishment of intelligent emergency communication system, and achieve the effect of breaking through the bottleneck of communication coverage, improving channel gain and fairness, and improving spectrum efficiency

Active Publication Date: 2021-10-29
NANTONG UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in large-scale disaster areas, especially in non-line-of-sight (NLoS) transmission areas, the communication quality will inevitably be affected, which hinders the smooth establishment of intelligent emergency communication systems

Method used

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  • Intelligent emergency communication system based on RIS
  • Intelligent emergency communication system based on RIS
  • Intelligent emergency communication system based on RIS

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Embodiment Construction

[0022] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described here are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0023] Unless otherwise defined, all technical terms and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field of the present invention, and the terms used in the description of the present invention herein are only to describe specific implementations The purpose of the example is not intended to limit the present invention.

[0024] Such as figure 1 , figure 2 with image 3 Shown, a kind of intelligent emergency communication system based on RIS, comprises unmanned aerial vehicle UAV and base stat...

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Abstract

The invention discloses an RIS-based intelligent emergency communication system, which comprises an unmanned aerial vehicle (UAV) and a base station (BS), and is characterized in that a reconfigurable intelligent surface RIS module is connected between the UAV and the base station (BS); a plurality of passive reflection elements are embedded in the plane of the reconfigurable intelligent surface RIS module and are used for dynamically adjusting the phase and the amplitude of a reflection signal; the reconfigurable intelligent surface RIS module is arranged in a building, a vehicle and an infrastructure; and the unmanned aerial vehicle (UAV) and the base station (BS) are transmitted by adopting an NLoS transmission model or an LoS transmission model. Through seamless connection of RIS, NOMA and emergency communication, intelligence and maximization of a communication coverage range can be realized, so that people in a disaster area can obtain higher-quality services, and channel gain and fairness of emergency users are further improved.

Description

technical field [0001] The invention relates to an RIS-based intelligent emergency communication system, which belongs to the technical field of communication. Background technique [0002] In the current emergency communication network, the emergency communication vehicle usually serves as a mobile base station (Base Station, BS). Due to the destructive effects of natural or man-made disasters such as earthquakes, droughts, and fires, communications in the corresponding areas are paralyzed, and thus the concept of emergency communications has arisen. Emergency communication refers to the means of using various communication resources to ensure the effectiveness of emergency rescue and disaster relief. Among them, emergency communication vehicles have been recognized by society and operators for their flexible and fast response. However, in emergency communication systems, emergency communication vehicles (as mobile BSs) are limited by horizontal (single) dimensional beamf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/90H04L1/00H04B7/185H04B7/06
CPCH04W4/90H04B7/18506H04L1/0047H04B7/0617Y02D30/70H04B7/04013
Inventor 段玮谷晓会姜衍季彦呈王明星卓碧婷
Owner NANTONG UNIVERSITY
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