Adaptive Time Slot Resource Allocation in SWIPT IoT Networks

作     者：Yunong Yang Yuexia Zhang Zhihai Zhuo 

作者机构：Key Laboratory of Information and Communication SystemsMinistry of Information IndustryBeijing Information Science and Technology UniversityBeijing100101China Key Laboratory of ModernMeasurement&Control TechnologyMinistry of EducationBeijing Information Science&Technology UniversityBeijing100101China Beijing Advanced Innovation Center for Future Blockchain and Privacy ComputingBeijing100101China 

出 版 物：《Computer Modeling in Engineering & Sciences》 (工程与科学中的计算机建模（英文）)

年 卷 期：2023年第136卷第9期

页      面：2787-2813页

核心收录：

学科分类：081203[工学-计算机应用技术] 08[工学] 0835[工学-软件工程] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：supported in part by Sub Project of National Key Research and Development Plan in 2020.No.2020YFC1511704 Beijing Information Science&Technology University.Nos.2020KYNH212,2021CGZH302 Beijing Science and Technology Project(Grant No.Z211100004421009) in part by the National Natural Science Foundation of China(Grant No.61971048) 

主　　题：Internet of Things simultaneous wireless information and power transfer adaptive time slot resource allocation 

摘      要：The rapid advancement of Internet of Things(IoT)technology has brought convenience to people’s lives;however further development of IoT faces serious challenges,such as limited energy and shortage of network spectrum *** address the above challenges,this study proposes a simultaneous wireless information and power transfer IoT adaptive time slot resource allocation(SIATS)***,an adaptive time slot consisting of periods for sensing,information transmission,and energy harvesting is designed to ensure that the minimum energy harvesting requirement ismet while the maximumuplink and downlink throughputs are ***,the optimal transmit power and channel assignment of the system are obtained using the Lagrangian dual and gradient descent methods,and the optimal time slot assignment is determined for each IoT device such that the sum of the throughput of all devices is *** results show that the SIATS algorithm performs satisfactorily and provides an increase in the throughput by up to 14.4%compared with that of the fixed time slot allocation(FTS)*** the case of a large noise variance,the SIATS algorithm has good noise immunity,and the total throughput of the IoT devices obtained using the SIATS algorithm can be improved by up to 34.7%compared with that obtained using the FTS algorithm.