面向工业物联网场景下行短包传输的叠加导频功率优化

夏文超; 徐婧; 周星光; 吴伟华; 赵海涛

doi:10.11959/j.issn.2096-3750.2024.00372

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面向工业物联网场景下行短包传输的叠加导频功率优化

理论与技术 | 更新时间：2024-08-16

- 面向工业物联网场景下行短包传输的叠加导频功率优化
- Power optimization of superimposed pilot for downlink short-packet transmission in IIoT
- 物联网学报 2024年8卷第2期页码：16-25
- 作者机构：
  
  1.南京邮电大学通信与信息工程学院，江苏南京 210003
  2.南京邮电大学江苏省无线通信重点实验室，江苏南京 210003
  3.陕西师范大学物理学与信息技术学院，陕西西安 710119
- 作者简介：
  
  [ "夏文超（1991‒ ），男，博士，南京邮电大学副教授，主要研究方向为边缘智能无线通信、通感一体化、大规模MIMO等。" ]
  [ "徐婧（1999‒ ），女，南京邮电大学硕士生，主要研究方向为工业互联网、超高可靠低时延通信等。" ]
  [ "周星光（1997‒ ），男，南京邮电大学通信与信息工程学院博士生，主要研究方向为超高可靠低时延通信、短包传输、大规模MIMO和信道估计理论。" ]
  [ "吴伟华（1988‒ ），男，博士，陕西师范大学副研究员，主要研究方向为无线资源分配、人工智能、随机网络优化及其在LTE-U网络中的应用。" ]
  [ "赵海涛（1983‒ ），男，博士，南京邮电大学通信与信息工程学院副院长、教授、博士生导师，主要研究方向为物联网、车联网、智能网络、多媒体信道建模、容量预测和无线网络编码等。" ]
- 基金信息：
  
  国家自然科学基金青年基金项目(62201285);江苏省自然科学基金资助项目;The Natural Science Foundation of Jiangsu Province(BK20212001);中国博士后科学基金面上项目(2022M722669);中国科协青年人才托举工程项目(2022QNRC001)
- DOI：10.11959/j.issn.2096-3750.2024.00372
  中图分类号：
- 纸质出版日期：2024-06-10，
  
  收稿日期：2023-06-25，
  
  修回日期：2024-06-15，
- 稿件说明：
移动端阅览
夏文超,徐婧,周星光等.面向工业物联网场景下行短包传输的叠加导频功率优化[J].物联网学报,2024,08(02):16-25.

XIA Wenchao,XU Jing,ZHOU Xingguang,et al.Power optimization of superimposed pilot for downlink short-packet transmission in IIoT[J].Chinese Journal on Internet of Things,2024,08(02):16-25.
夏文超,徐婧,周星光等.面向工业物联网场景下行短包传输的叠加导频功率优化[J].物联网学报,2024,08(02):16-25. DOI： 10.11959/j.issn.2096-3750.2024.00372.

XIA Wenchao,XU Jing,ZHOU Xingguang,et al.Power optimization of superimposed pilot for downlink short-packet transmission in IIoT[J].Chinese Journal on Internet of Things,2024,08(02):16-25. DOI： 10.11959/j.issn.2096-3750.2024.00372.

摘要

工业物联网在实现自动化和智能化生产方面具有巨大的潜力，但现有无线网络难以满足工业控制场景中的低时延、高可靠通信需求。基于此，研究了工业物联网下行短包传输场景中叠加导频（superimposed pilot，SP）功率分配问题，推导了可达传输速率在非完美信道状态信息和最大比发送下的闭合表达式的下限。进一步建立了下行加权和速率最大化问题，并利用逐次凸逼近法将该问题转化为几何规划问题来优化导频和数据功率分配。仿真结果表明所提SP模式下功率优化方案在短包传输中的优越性。

Abstract

The industrial internet of things (IIoT) has great potential in achieving automation and intelligent production. However

existing networks struggle to meet the low-latency and high-reliability communication requirements in industrial control scenarios. Motivated by this fact

the power allocation problem of superimposed pilot (SP) for downlink short-packet transmission in IIoT was studied and a lower bound for achievable transmission rates with imperfect channel state information and maximum ratio transmission was derived. Furthermore

the downlink weighted sumrate maximization problem was formulated and transformed into a geometric programming problem aiming to optimize pilot and data power allocation via successive convex approximation method. Simulation results demonstrate the superiority of the proposed power optimization scheme of SP in short-packet transmission.

关键词

工业物联网叠加导频短包传输功率分配

Keywords

IIoTsuperimposed pilotshort-packet transmissionpower allocation

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