Two-layered blockchain-based admission control for secure UAV networks

The frequent replacement requirement of UAVs for recharging outputs an extreme number messaging admission control end-users. There are many studies that try to optimize the network capacity in energy-efficient manner. However, they do not consider security data and channels, which is urgent 5G. Blockchain handles secure systems. high numbered transactions blockchain may cause bottlenecks while considering computational delay throughput end-user. In UAVs, a percentage battery consumed tasks instead communication tasks. Therefore, handle by needs, this paper proposes novel two-layered blockchain-based UAV networks. It has two layers named as side-chain off-chain end-users building decentralized former one, bearer protected each transaction signed admitted UAVs. Here, includes unique id, nonce value, IMSI user, RNTI UAV, data, hash value. latter built signing contracts between users manner Merkle tree constructed where root only stored side-chain. Then, should be validated extremely decreased. Moreover, PoS used validation validator selected randomly competition PoW. A algorithm isolates readmission 5G core-side during replacement. According performance evaluation, proposed approach serves 64.2% better QoS than conventional one it keeps edge acceptable range using PoS.