RIS-Assisted Integrated Sensing and Hybrid Symbiotic Radio Systems

IF 4.5 3区计算机科学 Q2 TELECOMMUNICATIONS

IEEE Communications Letters Pub Date : 2026-01-23 DOI:10.1109/LCOMM.2026.3657464

Bin Lyu;Haofan Du;Zongyuan Deng;Yan Liu;Changsheng You;Arumugam Nallanathan

{"title":"RIS-Assisted Integrated Sensing and Hybrid Symbiotic Radio Systems","authors":"Bin Lyu;Haofan Du;Zongyuan Deng;Yan Liu;Changsheng You;Arumugam Nallanathan","doi":"10.1109/LCOMM.2026.3657464","DOIUrl":null,"url":null,"abstract":"This letter proposes a reconfigurable intelligent surface (RIS) assisted integrated sensing and hybrid symbiotic radio (ISAHSR) system, where the RIS is utilized to not only assist target sensing within the directions of interest, but also support hybrid symbiotic radio (HSR) communications with both parasitic SR (PSR) and commensal SR (CSR) in the absence of direct links. To enable HSR communications, we first introduce a hybrid modulation scheme combining RIS partitioning (RP) and hybrid phase shift (HPS), referred to as the RP–HPS scheme. For this scheme, we maximize the primary transmission performance under practical constraints on target sensing and hybrid secondary transmissions. A two-layer optimization framework is developed to obtain a high-quality solution. Then, we propose the Pure-HPS scheme, where both PSR and CSR setups are achieved solely through phase shift adjustments, eliminating the need for the RP operation. To optimize this scheme, we design a single-layer optimization algorithm with low complexity. Numerical results demonstrate that the Pure-HPS scheme achieves better performance with significantly reduced computational complexity compared to the RP–HPS scheme.","PeriodicalId":13197,"journal":{"name":"IEEE Communications Letters","volume":"30 ","pages":"1116-1120"},"PeriodicalIF":4.5000,"publicationDate":"2026-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Communications Letters","FirstCategoryId":"94","ListUrlMain":"https://ieeexplore.ieee.org/document/11363209/","RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"TELECOMMUNICATIONS","Score":null,"Total":0}

引用次数: 0

Abstract

This letter proposes a reconfigurable intelligent surface (RIS) assisted integrated sensing and hybrid symbiotic radio (ISAHSR) system, where the RIS is utilized to not only assist target sensing within the directions of interest, but also support hybrid symbiotic radio (HSR) communications with both parasitic SR (PSR) and commensal SR (CSR) in the absence of direct links. To enable HSR communications, we first introduce a hybrid modulation scheme combining RIS partitioning (RP) and hybrid phase shift (HPS), referred to as the RP–HPS scheme. For this scheme, we maximize the primary transmission performance under practical constraints on target sensing and hybrid secondary transmissions. A two-layer optimization framework is developed to obtain a high-quality solution. Then, we propose the Pure-HPS scheme, where both PSR and CSR setups are achieved solely through phase shift adjustments, eliminating the need for the RP operation. To optimize this scheme, we design a single-layer optimization algorithm with low complexity. Numerical results demonstrate that the Pure-HPS scheme achieves better performance with significantly reduced computational complexity compared to the RP–HPS scheme.

查看原文本刊更多论文

ris辅助集成传感和混合共生无线电系统

这封信提出了一个可重构的智能表面（RIS）辅助集成传感和混合共生无线电（ISAHSR）系统，其中RIS不仅用于协助感兴趣方向内的目标传感，而且还支持混合共生无线电（HSR）与寄生SR （PSR）和共生SR （CSR）在没有直接链接的情况下进行通信。为了实现高铁通信，我们首先引入了一种结合RIS分区（RP）和混合相移（HPS）的混合调制方案，称为RP - HPS方案。该方案在目标传感和混合二次传输的实际约束下，最大限度地提高了主传输性能。为了获得高质量的解，设计了一个两层优化框架。然后，我们提出了Pure-HPS方案，其中PSR和CSR设置仅通过相移调整来实现，从而消除了RP操作的需要。为了优化该方案，我们设计了一个低复杂度的单层优化算法。数值结果表明，与RP-HPS方案相比，Pure-HPS方案具有更好的性能，且计算复杂度显著降低。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

IEEE Communications Letters 工程技术-电信学

CiteScore

8.10

自引率

7.30%

发文量

590

审稿时长

2.8 months

期刊介绍： The IEEE Communications Letters publishes short papers in a rapid publication cycle on advances in the state-of-the-art of communication over different media and channels including wire, underground, waveguide, optical fiber, and storage channels. Both theoretical contributions (including new techniques, concepts, and analyses) and practical contributions (including system experiments and prototypes, and new applications) are encouraged. This journal focuses on the physical layer and the link layer of communication systems.