A Novel Block Transmission Model in Blockchain Networks

In a blockchain network, the instability of the block transmission process can affect the speed of block transmission. If blocks cannot be accepted by nodes and saved on a blockchain in time, which may lead to inconsistent blockchain ledgers stored by nodes, thus reducing the security of blockchain networks. However, when nodes transmit blocks, they often encounter problems of too large blocks and insufficient bandwidth, which results in slow block transmission speed and low efficiency. To solve the problems, it proposes a block transmission model, which encodes units into packets. Based on the model, the corresponding encoding and decoding processes are designed. The proposed method is compared with two state-of-the-art methods: Velocity and Kadcast. Experimental results show that the proposed method performs better than its peers in terms of block synchronization time, block transmission success ratio, and packet retransmission ratio.