Block Interval Adjustment Based on Block Propagation Time in a Blockchain
Masumi Arakawa, Kazuyuki Shudo · 2022
Transaction confirmation throughput is one of the most important performance metrics of public blockchains. Throughput can be improved by shortening the block generation interval, but that approach could sacrifice security because shorter intervals increase the fork rate. Our proposed method improves the throughput by adjusting the block generation interval to be as short as possible. Part of the nodes observe the block propagation times over the blockchain network, and the interval is determined so as not to increase the fork rate. Our simulation showed the proposed method works as it is supposed to.