论文标题
在能量收集窃听者存在下，星际流氓的保密率分析
Secrecy Rate Analysis of STAR-RIS in Presence of Energy Harvesting Eavesdroppers
论文作者
论文摘要
这项工作详细介绍了基于可重新配置的智能表面（Star-ris）无线系统的同时传输和反映，其中不信任的能量收集节点窃听了合法的信号。可实现的保密率和用于多播通信的收获能量被计算为星际传播和反射系数（TARCS）的功能。因此，为了最大程度地提高保密率，同时满足所需的最低收获能量，研究了非凸优化问题。通过使用Dinkelbach转换和半明确弛豫技术，优化问题被转化为凸问题。最终，据报道，数值结果可以指定星际统治大小的影响，并优化其TARCS元素对放大保密速率 - 能量收获区域的影响。
This work peruses a simultaneous transmitting and reflecting reconfigurable intelligent surface (STAR-RIS) based wireless system wherein untrusted energy harvesting nodes wiretap the legitimate signal. The achievable secrecy rate and the harvested energy for multicast communication are computed as functions of STAR-RIS transmission and reflection coefficients (TARCs). Thus, to maximize the secrecy rate while satisfying the minimum required harvested energies, the non-convex optimization problem is investigated. By using the Dinkelbach transformation and semi-definite relaxation technique, the optimization problem is transformed into a convex problem. Eventually, the numerical results are reported to specify the effects of the size of the STAR-RIS and optimizing its TARCs elements on magnifying the secrecy rate-energy harvesting region.
