Article(id=1251505541609107556, tenantId=1146029695717560320, journalId=1251233954884272221, issueId=1251505536634667461, articleNumber=null, orderNo=null, doi=10.13682/j.issn.2095-6533.2025.06.002, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1742918400000, receivedDateStr=2025-03-26, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1776311772967, onlineDateStr=2026-04-16, pubDate=1762704000000, pubDateStr=2025-11-10, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1776311772967, onlineIssueDateStr=2026-04-16, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1776311772967, creator=13701087609, updateTime=1776311772967, updator=13701087609, issue=Issue{id=1251505536634667461, tenantId=1146029695717560320, journalId=1251233954884272221, year='2025', volume='30', issue='6', pageStart='1', pageEnd='130', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=1, specialIssue=null, createTime=1776311771782, creator=13701087609, updateTime=1776311824541, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1251505758014226723, tenantId=1146029695717560320, journalId=1251233954884272221, issueId=1251505536634667461, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1251505758014226724, tenantId=1146029695717560320, journalId=1251233954884272221, issueId=1251505536634667461, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=11, endPage=20, ext={EN=ArticleExt(id=1251505541890125931, articleId=1251505541609107556, tenantId=1146029695717560320, journalId=1251233954884272221, language=EN, title=Optimization scheme for mine 5G based on deep reinforcement learning, columnId=null, journalTitle=Journal of Xi'an University of Posts and Telecommunications, columnName=null, runingTitle=null, highlight=null, articleAbstract=
Aiming at the optimization of 5G network coverage performance in the complex environment of coal mine underground,a 5G optimization scheme based on deep reinforcement learning is proposed.For the 10km main transport roadway scenario,multiple transmission loss factors such as roadway cross-section size,wall roughness,and equipment occlusion are comprehensively considered,and a signal propagation mathematical model integrating the line-of-sight/nonline-of-sight path loss model and the roughness attenuation factor is established.A deep Q-network is adopted as the value-function approximator for the learning agent,transforming the joint online optimization of base-station placement and transmit power into a multi-objective decision problem that maximizes the coverage while minimizing the number of base stations.Adopt a dynamic power-adjustment mechanism,enabling real-time adaptation to abrupt local signal degradations.Experimental results confirm that the scheme achieves a coverage exceeding 95%,while reducing the number of deployed base stations by 28%compared with a conventional static layout,thereby markedly enhancing the underground 5G coverage and lowering the deployment costs and operational power consumption.
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针对煤矿井下复杂环境中第五代移动通信技术(5th-Generation Mobile Communication Technology,5G)网络覆盖性能优化的问题,提出一种基于深度强化学习的矿井5G优化方案。面向10km主运巷道场景,综合考虑巷道截面尺寸、壁面粗糙度、设备遮挡等多重传输损耗因素,建立融合视距/非视距路径损耗模型与粗糙度衰减因子的信号传播数学模型。将深度Q网络作为价值函数近似器的强化学习智能体,并通过基站部署与发射功率将在线优化转化为多目标决策问题,以最小基站数量实现覆盖率最大化。采用动态功率调整机制,以实时优化基站发射功率,从而适应局部信号衰减的突发变化。实验结果表明,该方案可以实现95%以上的覆盖率,相较于传统静态方案减少了28%基站部署,显著提升了井下5G网络覆盖性能,并能够降低部署成本与运行功耗。
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梁沫(1986-),女,陕西宝鸡人,硕士,中煤科工集团北京华宇工程有限公司高级工程师,主要研究方向为煤矿智能化、物联网技术等。E-mail: 290840496@qq.com |
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1.China Coal Science Beijing Huayu Engineering Co.,Ltd.Xi'an Branch,Xi'an 710000,China
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梁沫(1986-),女,陕西宝鸡人,硕士,中煤科工集团北京华宇工程有限公司高级工程师,主要研究方向为煤矿智能化、物联网技术等。E-mail: 290840496@qq.com
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梁沫(1986-),女,陕西宝鸡人,硕士,中煤科工集团北京华宇工程有限公司高级工程师,主要研究方向为煤矿智能化、物联网技术等。E-mail: 290840496@qq.com
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王军选(1970-),男,陕西西安人,博士,西安邮电大学教授、博士生导师,主要研究方向为宽带无线通信、物联网技术等。E-mail: wangjx@xupt.edu.cn
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| 参数 | 数值 |
|---|
| 巷道长度M/m | 10000 |
| 巷道宽度W/m | 2.5 |
| 巷道高度H/m | 2.5 |
| 粗糙度均方根h1、h2 | 0.15 |
| 工作频段f/GHz | 0.9 |
| 初始发射功率P0/dBm | 30 |
| 接收功率阈值Pth/dBm | -90 |
视距传输概率 | 0.3 |
| 空间分辨率Δx/m | 100 |
| 最大基站数量Nmax | 20 |
| 功率调整大小ΔP/dB | 5dB |
| 基站最大发射功率Pmax/dB | 40dB |
| 防爆安全功率上限Psafe/dBm | 40 |
| 功率调整冗余区间ΔPbuf/dBm | ≤38 |
| 功率调整触发阈值(上调)Pup/dBm | <-90 |
| 功率调整触发阈值(下调)Pdown/dBm | >-80 |
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参数说明和默认值设置
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| 参数 | 数值 |
|---|
| 巷道长度M/m | 10000 |
| 巷道宽度W/m | 2.5 |
| 巷道高度H/m | 2.5 |
| 粗糙度均方根h1、h2 | 0.15 |
| 工作频段f/GHz | 0.9 |
| 初始发射功率P0/dBm | 30 |
| 接收功率阈值Pth/dBm | -90 |
视距传输概率 | 0.3 |
| 空间分辨率Δx/m | 100 |
| 最大基站数量Nmax | 20 |
| 功率调整大小ΔP/dB | 5dB |
| 基站最大发射功率Pmax/dB | 40dB |
| 防爆安全功率上限Psafe/dBm | 40 |
| 功率调整冗余区间ΔPbuf/dBm | ≤38 |
| 功率调整触发阈值(上调)Pup/dBm | <-90 |
| 功率调整触发阈值(下调)Pdown/dBm | >-80 |
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