在窄带物联网(Narrow Band Internet of Things,NB-IoT)通信系统中,设备间的数据通信以无连接的UDP(User Datagram Protocol)报文方式传输。在不可靠的UDP传输机制下,密钥的可靠更新成了安全门锁机制研究中的难点。文中设计了一个无连...在窄带物联网(Narrow Band Internet of Things,NB-IoT)通信系统中,设备间的数据通信以无连接的UDP(User Datagram Protocol)报文方式传输。在不可靠的UDP传输机制下,密钥的可靠更新成了安全门锁机制研究中的难点。文中设计了一个无连接通信链路上的密钥可靠更新方案,该方案利用智能门锁密钥更新的特点,通过精心设计的密钥传输交互机制,使门锁设备通过UDP协议获取密钥并且可靠地完成密钥更新。理论分析和原型实验的结果表明,该方案能够可靠地更新密钥,并具有较小的通信开销和计算开销。展开更多
Large-scale wireless sensor networks(WSNs)play a critical role in monitoring dangerous scenarios and responding to medical emergencies.However,the inherent instability and error-prone nature of wireless links present ...Large-scale wireless sensor networks(WSNs)play a critical role in monitoring dangerous scenarios and responding to medical emergencies.However,the inherent instability and error-prone nature of wireless links present significant challenges,necessitating efficient data collection and reliable transmission services.This paper addresses the limitations of existing data transmission and recovery protocols by proposing a systematic end-to-end design tailored for medical event-driven cluster-based large-scale WSNs.The primary goal is to enhance the reliability of data collection and transmission services,ensuring a comprehensive and practical approach.Our approach focuses on refining the hop-count-based routing scheme to achieve fairness in forwarding reliability.Additionally,it emphasizes reliable data collection within clusters and establishes robust data transmission over multiple hops.These systematic improvements are designed to optimize the overall performance of the WSN in real-world scenarios.Simulation results of the proposed protocol validate its exceptional performance compared to other prominent data transmission schemes.The evaluation spans varying sensor densities,wireless channel conditions,and packet transmission rates,showcasing the protocol’s superiority in ensuring reliable and efficient data transfer.Our systematic end-to-end design successfully addresses the challenges posed by the instability of wireless links in large-scaleWSNs.By prioritizing fairness,reliability,and efficiency,the proposed protocol demonstrates its efficacy in enhancing data collection and transmission services,thereby offering a valuable contribution to the field of medical event-drivenWSNs.展开更多
文摘在窄带物联网(Narrow Band Internet of Things,NB-IoT)通信系统中,设备间的数据通信以无连接的UDP(User Datagram Protocol)报文方式传输。在不可靠的UDP传输机制下,密钥的可靠更新成了安全门锁机制研究中的难点。文中设计了一个无连接通信链路上的密钥可靠更新方案,该方案利用智能门锁密钥更新的特点,通过精心设计的密钥传输交互机制,使门锁设备通过UDP协议获取密钥并且可靠地完成密钥更新。理论分析和原型实验的结果表明,该方案能够可靠地更新密钥,并具有较小的通信开销和计算开销。
文摘Large-scale wireless sensor networks(WSNs)play a critical role in monitoring dangerous scenarios and responding to medical emergencies.However,the inherent instability and error-prone nature of wireless links present significant challenges,necessitating efficient data collection and reliable transmission services.This paper addresses the limitations of existing data transmission and recovery protocols by proposing a systematic end-to-end design tailored for medical event-driven cluster-based large-scale WSNs.The primary goal is to enhance the reliability of data collection and transmission services,ensuring a comprehensive and practical approach.Our approach focuses on refining the hop-count-based routing scheme to achieve fairness in forwarding reliability.Additionally,it emphasizes reliable data collection within clusters and establishes robust data transmission over multiple hops.These systematic improvements are designed to optimize the overall performance of the WSN in real-world scenarios.Simulation results of the proposed protocol validate its exceptional performance compared to other prominent data transmission schemes.The evaluation spans varying sensor densities,wireless channel conditions,and packet transmission rates,showcasing the protocol’s superiority in ensuring reliable and efficient data transfer.Our systematic end-to-end design successfully addresses the challenges posed by the instability of wireless links in large-scaleWSNs.By prioritizing fairness,reliability,and efficiency,the proposed protocol demonstrates its efficacy in enhancing data collection and transmission services,thereby offering a valuable contribution to the field of medical event-drivenWSNs.
