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arXiv 2107.02155eess.SPcs.SYeess.SY
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可重构智能表面辅助的设备到设备通信

Reconfigurable Intelligent Surface Assisted Device-to-Device Communications

Zelin Ji, Zhijin Qin, Clive G. Parini

AI总结:

本文提出基于双深度Q网络(DDQN)的结构,通过调整可重构智能表面(RIS)的位置和相移来优化D2D通信中的传输速率,实现接近最优性能并满足服务质量要求。

摘要:

可重构智能表面(RIS)技术是一种有前景的方法,用于增强无线通信服务并实现智能无线电环境。本文从新的视角研究RIS在D2D通信中的应用,并最大化D2D底层网络中传输速率之和。不同于解决类似公式化的D2D通信资源分配问题,本文将无线环境视为变量,通过调整RIS的位置和相移来实现。为解决这一非凸问题,我们提出了一种新颖的基于双深度Q网络(DDQN)的结构,该结构能够以较低的复杂度和增强的鲁棒性实现接近最优的性能。仿真结果表明,与基准相比,所提出的基于DDQN的结构可以实现更高的上行链路速率,同时满足基站(BS)和D2D接收端的服务质量(QoS)要求。

英文摘要:

Reconfigurable intelligent surface (RIS) technology is a promising method to enhance wireless communications services and to realize the smart radio environment. In this paper, we investigate the application of RIS in D2D communications, and maximize the sum of the transmission rate of the D2D underlaying networks in a new perspective. Instead of solving similarly formulated resource allocation problems for D2D communications, this paper treats the wireless environment as a variable by adjusting the position and phase shift of the RIS. To solve this non-convex problem, we propose a novel double deep Q-network (DDQN) based structure which is able to achieve the near-optimal performance with lower complexity and enhanced robustness. Simulation results illustrate that the proposed DDQN based structure can achieve a higher uplink rate compared to the benchmarks, meanwhile meeting the quality of service (QoS) requirements at the base station (BS) and D2D receivers.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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