Yan Zhang;Lu Lv;Long Yang;Yongjun Xu;Zhiguo Ding;Jian Chen
{"title":"Symbiotic NOMA: A Mutualism Communication Paradigm Toward Green Massive Access","authors":"Yan Zhang;Lu Lv;Long Yang;Yongjun Xu;Zhiguo Ding;Jian Chen","doi":"10.1109/LCOMM.2024.3454420","DOIUrl":null,"url":null,"abstract":"In this letter, we propose a symbiotic non-orthogonal multiple access (NOMA) mutually reinforcing paradigm for green massive access to better meet the diverse and challenging requirements of Internet-of-Things. In particular, the backscatter device (BD) utilizes the same spectrum resources of the legacy users for reflection while providing beneficial multipath to enhance the performance of legacy transmission. We aim to jointly optimize the active/receive beamforming vectors and reflection coefficients to maximize the weighted sum rate, proving that there is no need to design a dedicated beam for BD via the developed analytical results. Simulation results validate the superiority of the symbiotic NOMA scheme.","PeriodicalId":13197,"journal":{"name":"IEEE Communications Letters","volume":"28 10","pages":"2437-2441"},"PeriodicalIF":3.7000,"publicationDate":"2024-09-04","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/10664536/","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
In this letter, we propose a symbiotic non-orthogonal multiple access (NOMA) mutually reinforcing paradigm for green massive access to better meet the diverse and challenging requirements of Internet-of-Things. In particular, the backscatter device (BD) utilizes the same spectrum resources of the legacy users for reflection while providing beneficial multipath to enhance the performance of legacy transmission. We aim to jointly optimize the active/receive beamforming vectors and reflection coefficients to maximize the weighted sum rate, proving that there is no need to design a dedicated beam for BD via the developed analytical results. Simulation results validate the superiority of the symbiotic NOMA scheme.
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.
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