Cluster Head Selection Algorithm for UAV Assisted Clustered IoT Network Utilizing Blockchain

• 来源期刊: 中兴通讯技术（英文版）
• 年，卷（期）: 2021,（1）
• 所属期刊栏目: Special Topic
• 页码范围: 30-38
• 页数: 9页
• 语种: 英文
• DOI: 10.12142/ZTECOM.202101005

摘要

To guarantee the security of Internet of Things (IoT) devices, the blockchain tech?nology is often applied to clustered IoT networks. However, cluster heads (CHs) need to un?dertake additional control tasks. For battery-powered IoT devices, the conventional CH se?lection algorithm is limited. Based on the above problem, an unmanned aerial vehicle (UAV) network assisted clustered IoT system is proposed, and a corresponding UAV CH se?lection algorithm is designed. In this scheme, UAVs are selected as CHs to serve IoT clus?ters. The proposed CH selection algorithm considers the maximal transmit power, residual energy and distance information of UAVs, which can greatly extend the working life of IoT clusters. Through Monte Carlo simulation, the key performance indexes of the system, in?cluding energy consumption, average secrecy rate and the maximal number of data packets received by the base station (BS), are evaluated. The simulation results show that the pro?posed algorithm has great advantages compared with the existing CH selection algorithms.