论文标题
同时进行传输和反射可重新配置智能表面辅助全双工通信
Simultaneous Transmission and Reflection Reconfigurable Intelligent Surface Assisted Full-Duplex Communications
论文作者
论文摘要
这项工作证明了新型的同时传播和反射可重新配置的智能表面（Star-ris）在全双制（FD）辅助通信系统中的有效性。目的是通过共同设计星形 - ris的发射功率以及反射和反射（T＆R）系数来最大程度地减少总发射功率。为了解决非凸问题，通过利用交替优化框架来迭代优化变量，提出了有效的算法。具体而言，在每次迭代中，我们驱动封闭形式的表达式以进行最佳功率设计。连续的凸近似值（SCA）方法和半芬特程序（SDP）用于解决无源光束形成优化问题。数值结果验证了所提出的算法的收敛性和有效性，并进一步揭示了哪种情况下有助于FD沟通的情况下，FD交流击败了半双链和常规的RI。
This work demonstrates the effectiveness of a novel simultaneous transmission and reflection reconfigurable intelligent surface (STAR-RIS) in Full-Duplex (FD) aided communication system. The objective is to minimize the total transmit power by jointly designing the transmit power and the transmitting and reflecting (T&R) coefficients of the STAR-RIS. To solve the nonconvex problem, an efficient algorithm is proposed by utilizing the alternating optimization framework to iteratively optimize variables. Specifically, in each iteration, we drive the closed-form expression for the optimal power design. The successive convex approximation (SCA) method and semidefinite program (SDP) are used to solve the passive beamforming optimization problem. Numerical results verify the convergence and effectiveness of the proposed algorithm, and further reveal in which scenarios STAR-RIS assisted FD communication defeats the Half-Duplex and conventional RIS.
