Lakhan Abdullah, Abed Mohammed Mazin, Kadry Seifedine, Hameed Abdulkareem Karrar, Taha Al-Dhief Fahad, Hsu Ching-Hsien
College of Computer Science and Artificial Intelligence, Wenzhou University, Wenzhou, China.
College of Computer Science and Information Technology, University of Anbar, Ramadi, Iraq.
PeerJ Comput Sci. 2021 Nov 22;7:e758. doi: 10.7717/peerj-cs.758. eCollection 2021.
The intelligent reflecting surface (IRS) is a ground-breaking technology that can boost the efficiency of wireless data transmission systems. Specifically, the wireless signal transmitting environment is reconfigured by adjusting a large number of small reflecting units simultaneously. Therefore, intelligent reflecting surface (IRS) has been suggested as a possible solution for improving several aspects of future wireless communication. However, individual nodes are empowered in IRS, but decisions and learning of data are still made by the centralized node in the IRS mechanism. Whereas, in previous works, the problem of energy-efficient and delayed awareness learning IRS-assisted communications has been largely overlooked. The federated learning aware Intelligent Reconfigurable Surface Task Scheduling schemes (FL-IRSTS) algorithm is proposed in this paper to achieve high-speed communication with energy and delay efficient offloading and scheduling. The training of models is divided into different nodes. Therefore, the trained model will decide the IRSTS configuration that best meets the goals in terms of communication rate. Multiple local models trained with the local healthcare fog-cloud network for each workload using federated learning (FL) to generate a global model. Then, each trained model shared its initial configuration with the global model for the next training round. Each application's healthcare data is handled and processed locally during the training process. Simulation results show that the proposed algorithm's achievable rate output can effectively approach centralized machine learning (ML) while meeting the study's energy and delay objectives.
智能反射面(IRS)是一种开创性技术,可提高无线数据传输系统的效率。具体而言,通过同时调整大量小型反射单元来重新配置无线信号传输环境。因此,智能反射面(IRS)已被视为改善未来无线通信多个方面的一种可能解决方案。然而,在IRS中各个节点被赋能,但数据的决策和学习仍由IRS机制中的集中式节点进行。而在以往的工作中,节能和延迟感知学习的IRS辅助通信问题在很大程度上被忽视了。本文提出了联邦学习感知智能可重构表面任务调度方案(FL-IRSTS)算法,以实现具有能量和延迟高效卸载与调度的高速通信。模型的训练被划分到不同节点。因此,训练后的模型将根据通信速率决定最符合目标的IRSTS配置。使用联邦学习(FL)针对每个工作负载在本地医疗雾云网络中训练多个本地模型以生成全局模型。然后,每个训练后的模型与全局模型共享其初始配置以进行下一轮训练。在训练过程中,每个应用的医疗数据在本地进行处理和加工。仿真结果表明,所提算法的可达速率输出在满足研究的能量和延迟目标的同时,能够有效接近集中式机器学习(ML)。