In this paper, we consider an integrated data and energy network and D2D communication coexistence (DED2D) system. The DED2D system allows a base station (BS) to transfer data to information-demanded users (IUs) and energy to energy-demanded users (EUs), i.e., using a time-fraction-based information and energy transfer (TFIET) scheme. Furthermore, the DED2D system enables D2D communications to share spectrum with the BS. Therefore, the DED2D system addresses the growth of energy and spectrum demands of the next generation networks. However, the interference caused by the D2D communications and propagation loss of wireless links can significantly degrade the data throughput of IUs. To deal with the issues, we propose to deploy an intelligent reflecting surface (IRS) in the DED2D system. Then, we formulate an optimization problem that aims to optimize the information beamformer for the IUs, energy beamformer for EUs, time fractions of the TFIET, transmit power of D2D transmitters, and reflection coefficients of the IRS to maximize IUs' worse throughput while satisfying the harvested energy requirement of EUs and D2D rate threshold. The max-min throughput optimization problem is computationally intractable, and we develop an alternating descent algorithm to resolve it with low computational complexity. The simulation results demonstrate the effectiveness of the proposed algorithm.
翻译:在本文中,我们考虑的是综合的数据和能源网络以及D2D通信共享(DED2D)系统。DED2D系统使一个基站能够将数据传输给信息用户(IUs)和能源用户(EUs),即使用基于时限的信息和能源传输(TFIET)计划。此外,DED2D系统使D2D通信能够与BS共享频谱。因此,DED2D系统处理下一代网络的能源和频谱需求的增长。然而,D2D通信和传播无线链接的丧失导致基站将数据传输给信息需求用户(IUs)和能源需求用户(EUs),从而将数据传输给信息需求用户(IUs)和能源需求用户(D)的能量传输能力。为了解决问题,我们提议在DED2D系统中部署一个智能反映表面(IRS)的系统。然后,我们提出一个优化问题,目的是优化信息传递给IMS、欧盟的能源需求、TFIET的的拟议退位、TFIET的时段、传输D2D发机的能量传输能力,以及无线连接的回率和反省平压的计算,同时,我们通过IMSBL的能源需求将IU的压压压的压压压压压压压压压后,我们通过IU的机率发展了IU。