Hybrid peer-to-peer network based layered blockchain architecture for enhancement of synchronization performance

Due to the nature of the blockchain, all transaction records are stored and maintained as chained data, and as time goes by, their size will inevitably continue to accumulate. In the case of a block chain containing a large number of transactions and blocks over a long period of time, it will have a large size of chain data, and it will require a lot of time for new nodes to receive all of this chain data. In addition, due to the block size and block creation interval, the TPS figure is inevitably very late compared to the existing credit card network To solve this problem, various solutions such as lightening network, DPOS, and DDPOS have been proposed. In addition to improving the TPS of the blockchain, it is also necessary to improve the P2P networking structure, which is the underlying network infrastructure of the blockchain. In ITU-T SG11 [1], X.609 series Recommendation for mesh-based content distribution was developed, and recently, Recommendation for hybrid peer-to-peer network using mesh method and tree method is being developed. In particular, blockchain, IoT, and live multimedia streaming service are considered as killer application services of hybrid peer-to-peer networks. In this paper, we introduce the hybrid peer-to-peer network in the ITU-T Q.4100 [2] recommendation, and propose a network structure to increase the transaction propagation speed and block synchronization speed by using it as the underlying network of the blockchain.