PBFT with Gated Prioritized Block Cycles
Jelena Mišić, Vojislav B. Mišić, Xiaolin Chang · 2023
In this paper we propose a gated cycle scheme for prioritized block access in a PBFT-like consensus mechanism suitable for blockchain-based IoT applications. Blocks submitted by clients are processed in cycles of variable length, in the order determined according to their priorities which can be assigned according to the block length or orderer's stake. We investigate the performance of this scheme using an analytical model and show that it indeed allows for clear differentiation of traffic of different priorities whilst retaining good performance, esp. under higher traffic load, compared to the original PBFT.