Peter, Oyinloye Damilare
(2023)
A Simplified Consensus Protocol Simulator With Applications On Proof Of Contribution-X.
PhD thesis, Perpustakaan Hamzah Sendut.
Abstract
Blockchain consensus protocols are the major architectural components of
blockchain networks. Numerous enhancements of popular blockchain consensus
protocols, such as Proof of Work (PoW) and Proof of Stake (PoS), have led to the
emergence of alternative consensus protocols, some of which cater to specific areas
such as medicine or transportation. A considerable amount of research has been done
on these alternative protocols, one class of which is known as Consensus Protocols
Based on Past Behaviour (CPPB). However, these protocols remain relatively
unknown and lack performance analysis, which hinders their possible deployment in
real-world blockchain networks because the strengths and weaknesses of these
consensus protocols cannot be determined. This problem stems from the lack of
simulation tools for other consensus protocols that are not mainstream. This gap is
bridged by proposing a simple simulation framework called SIM-P, which can
accurately simulate the behaviour of these consensus protocols with ease. SIM-P is
an agent-based stochastic simulator that relies on the sequential Monte Carlo method
to model how block publishers are selected. Simulation models are developed for
PoW as a base model for benchmarking purposes, as well as for two selected CPPBs:
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