TY - JOUR A2 - 卡塔克，哈桑·阿里AU - 尚，小辉AU - 尹浩AU - 刘，埃军AU - 李，穆AU - 王，亿达AU - 王雍PY - 2020 DA - 2020年1月7日TI- 安全环保，面向多用户调度物联网SP的无线提供互联网 - 7845107 VL - 2020 AB - 在本文中，我们认为物联网的无线供电的互联网安全绿色为主导的多用户调度（IOT）场景，其中多个源传感器，由中间传感器具有无源攻丝装置的存在辅助的控制器进行通信。由于有限的能量，所有传感器必须从外部电源信标（PBS）获得能量。Specifically, for the security improvement, we introduce two multiuser scheduling schemes possessing the optimal PB chosen by the relay, i.e., the best source sensor is scheduled in a random way (BSR), while the best source sensor is decided by the best PB (BSBP). Furthermore, for every scheme, we derive the analytical expressions for the secrecy outage probability (SOP) and investigate the secure energy efficiency (SEE) optimization problem with constricted transmission power in PBs. Simulation results reveal that the BSBP scheme provides better secrecy performance, and elevating the PBs quantity or reducing both the ratio of distance from PBs to source users and the total communication distance to some extent is helpful for improving SEE. In addition, the time-switching factor shows an important effect upon secrecy performance of the considered system. SN - 1530-8669 UR - https://doi.org/10.1155/2020/7845107 DO - 10.1155/2020/7845107 JF - Wireless Communications and Mobile Computing PB - Hindawi KW - ER -