论文标题
与中继辅助双RIS的室外和室内通信的年龄最小化
Age Minimization in Outdoor and Indoor Communications with Relay-aided Dual RIS
论文作者
论文摘要
在本文中，我们在新型继电器双面可重构智能表面（RIS）的帮助下研究了室外和室内无线通信网络。在室外访问点（AP）上考虑调度问题，以最大程度地减少信息时代的总和（AOI）。为了服务室内用户并进一步提高了无线链路质量，使用了带有继电器的新型双面RI。由于公式化的问题是具有高耦合变量的非凸面，因此提出了基于连续的凸近似（SCA）交替优化（AO）算法以迭代方式解决它。最后，与其他基准相比，模拟结果表明了所提出算法的AOI的有效性和显着提高。
In this paper, we investigate an outdoor and indoor wireless communication network with the assistance of a novel relay-aided double-sided reconfigurable intelligent surface (RIS). A scheduling problem is considered at the outdoor access point (AP) to minimize the sum of age of information (AoI). To serve the indoor users and further enhance the wireless link quality, a novel double-sided RIS with relay is utilized. Since the formulated problem is non-convex with highly-coupled variables, a successive convex approximation (SCA) based alternating optimization (AO) algorithm is proposed to solve it in an iterative manner. Finally, simulation results show the effectiveness and significant performance improvement in terms of AoI of the proposed algorithm compared with other benchmarks.
