Age of Information in UAV Aided Wireless Sensor Networks Relying on Blockchain

【Author】 Feng, Houze; Wang, Jingjing; Fang, Zhengru; Qian, Junhui; Chen, Kwang-Cheng

【Source】IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY

【影响因子】6.239

【Abstract】Nowadays, the freshness of status update data is critical for emergent tasks in wireless sensor networks (WSNs). This paper analyzes the peak age of information (PAoI) in the transaction-confirmation process of blockchain technology in the context of unmanned aerial vehicle (UAV) aided wireless sensor networks. Each access node transmits the latest packets to the associated access node, which processes the packets relying on blockchain technology. We investigate the transaction-confirmation process based on a finite-buffer batch-service GI/M-[b]/1/N queueing system. Additionally, the embeddedMarkov chain techniques are utilized to obtain the state probabilities of the system. Moreover, we deduce the closed-form expressions of average PAoI, which regards as the worse case of the update packet's freshness. Numerical results verify that reducing the block size and the queue length leads to a lower PAoI. Besides, fixed interval network traffic andMarkov property network traffic based situations display much better aging behavior than other situations.

【Keywords】Age of Information (AoI); blockchain; unmanned aerial vehicle (UAV); wireless sensor networks (WSNs); queueing theory

【发表时间】2023 SEP

【收录时间】2023-12-14

【文献类型】实验仿真

【主题类别】

区块链应用-实体经济-无人机