RIS赋能多集群无线携能通信网络的自维持能力增强性研究

邵凯; 毛恬恬; 王光宇; 楚征

doi:10.11959/j.issn.1000-436x.2025096

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RIS赋能多集群无线携能通信网络的自维持能力增强性研究

学术论文 | 更新时间：2025-07-04

- RIS赋能多集群无线携能通信网络的自维持能力增强性研究
- Research on boosting self-sustainability for RIS-aided multi-cluster wireless powered communication networks
- 通信学报 2025年46卷第6期页码：185-195
- 作者机构：
  
  1.重庆邮电大学通信与信息工程学院，重庆 400065
  2.移动通信技术重庆市重点实验室，重庆 400065
  3.宁波诺丁汉大学电气与电子工程系，浙江宁波 315100
- 作者简介：
  
  [ "邵凯（1977- ），男，云南普洱人，重庆邮电大学副教授，主要研究方向为智能感知与信息系统、信号与信息智能处理。" ]
  [ "毛恬恬（2000- ），女，江西抚州人，重庆邮电大学硕士生，主要研究方向为无线携能通信网络、可重构智能表面。" ]
  [ "王光宇（1964- ），男，贵州兴义人，博士，重庆邮电大学特聘教授，主要研究方向为智能感知与信息系统、信号与信息智能处理。" ]
  [ "楚征（1986- ），男，河南平顶山人，博士，宁波诺丁汉大学副教授，主要研究方向为6G无线通信、物联网。" ]
- 基金信息：
  
  宁波市自然科学基金资助项目(2024J233)
- DOI：10.11959/j.issn.1000-436x.2025096
  中图分类号： TN92
- 收稿：2024-12-24，
  
  修回：2025-05-19，
  
  纸质出版：2025-06-25
- 稿件说明：
移动端阅览
邵凯,毛恬恬,王光宇等.RIS赋能多集群无线携能通信网络的自维持能力增强性研究[J].通信学报,2025,46(06):185-195.

SHAO Kai,MAO Tiantian,WANG Guangyu,et al.Research on boosting self-sustainability for RIS-aided multi-cluster wireless powered communication networks[J].Journal on Communications,2025,46(06):185-195.
邵凯,毛恬恬,王光宇等.RIS赋能多集群无线携能通信网络的自维持能力增强性研究[J].通信学报,2025,46(06):185-195. DOI： 10.11959/j.issn.1000-436x.2025096.

SHAO Kai,MAO Tiantian,WANG Guangyu,et al.Research on boosting self-sustainability for RIS-aided multi-cluster wireless powered communication networks[J].Journal on Communications,2025,46(06):185-195. DOI： 10.11959/j.issn.1000-436x.2025096.

摘要

研究了由可重构智能表面（RIS）辅助的多集群无线携能通信网络（WPCN）通信性能最大化问题。为提升网络的自我维持能力，约束了网络设备的信噪比（SNR），并提出了一种混合时分多址（TDMA-TDMA）传输方案。首先，为避免集群间干扰采用TDMA模式轮询集群；其次，基于RIS的时间选择性，在单集群内采用TDMA策略设计无源波束成形和时间分配。所建立的优化问题，采用非线性能量采集（NLEH）模型，考虑了RIS的相移误差（PSE）、传输时间、用户的SNR和不完美信道状态信息（CSI）等约束条件。仿真结果表明，与传统的资源分配方案相比，所提方案提高了网络边缘用户生存能力，有效地保证了网络生命周期。

Abstract

The performance maximization was investigated in a reconfigurable intelligent surface (RIS) assisted multi-cluster wireless powered communication network (WPCN). To enhance the self-sustaining capability of the network

the signal-to-noise ratio (SNR) of network devices was constrained and a hybrid time division multiple access (TDMA-TDMA) transmission scheme was proposed. Firstly

the TDMA was used to poll the cluster for avoiding the inter-cluster interference. Secondly

based on RIS’s time selectivity

passive beamforming and time allocation were designed by using TDMA strategy within a single cluster. A nonlinear energy harvesting (NLEH) model was adopted in the established optimization problem

with constraints on phase shift error (PSE) of RIS

transmission time SNR of users

and imperfect channel state information (CSI). Simulation results show that

the proposed scheme improves the survivability of network edge users and effectively ensures the network lifecycle

compared with traditional resource allocation schemes.

关键词

Keywords

references

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