{"title":"Secrecy Performance of Energy-Harvesting Backscatter Communication Network Under Different Tag Selection Schemes","authors":"Yasin Khan;Aaqib Afzal;Ankit Dubey;Alok Saxena","doi":"10.1109/JRFID.2024.3371877","DOIUrl":null,"url":null,"abstract":"This paper investigates the secrecy performance of a Backscatter communication (BackCom) network considering a practical non-linear energy harvesting model with various tag selection schemes. The tag circuit reflects the signal by finding the optimal dynamic reflection coefficient that maximizes the backscattered signal power while satisfying the tag energy constraint. The channel gains of all links follow Rayleigh fading model. Accounting performance and complexity trade-offs, two computationally efficient sub-optimal and a random selection schemes are proposed and analyzed. The performance is analyzed by obtaining the secrecy outage probability (SOP) and probability of intercept (POI) in closed-form. To gain further insights, expressions for the asymptotic SOP and POI are also derived for all selection schemes. We compare the proposed selection schemes with optimal selection scheme and conclude that proposed schemes significantly reduce the complexity and performs satisfactorily in terms of SOP and POI.","PeriodicalId":73291,"journal":{"name":"IEEE journal of radio frequency identification","volume":null,"pages":null},"PeriodicalIF":2.3000,"publicationDate":"2024-02-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE journal of radio frequency identification","FirstCategoryId":"1085","ListUrlMain":"https://ieeexplore.ieee.org/document/10454587/","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 0
Abstract
This paper investigates the secrecy performance of a Backscatter communication (BackCom) network considering a practical non-linear energy harvesting model with various tag selection schemes. The tag circuit reflects the signal by finding the optimal dynamic reflection coefficient that maximizes the backscattered signal power while satisfying the tag energy constraint. The channel gains of all links follow Rayleigh fading model. Accounting performance and complexity trade-offs, two computationally efficient sub-optimal and a random selection schemes are proposed and analyzed. The performance is analyzed by obtaining the secrecy outage probability (SOP) and probability of intercept (POI) in closed-form. To gain further insights, expressions for the asymptotic SOP and POI are also derived for all selection schemes. We compare the proposed selection schemes with optimal selection scheme and conclude that proposed schemes significantly reduce the complexity and performs satisfactorily in terms of SOP and POI.
本文研究了背向散射通信(BackCom)网络的保密性能,考虑了一个实用的非线性能量采集模型和各种标签选择方案。标签电路通过寻找最优动态反射系数来反射信号,从而在满足标签能量约束的同时使反向散射信号功率最大化。所有链路的信道增益都遵循瑞利衰减模型。考虑到性能和复杂性的权衡,提出并分析了两种计算效率较高的次优方案和随机选择方案。通过闭合形式获得保密中断概率(SOP)和截获概率(POI),对性能进行了分析。为了进一步深入了解,还推导出了所有选择方案的渐近 SOP 和 POI 表达式。我们将提出的选择方案与最优选择方案进行了比较,得出的结论是,提出的方案大大降低了复杂性,在 SOP 和 POI 方面的表现令人满意。