Early-phase performance exploration of embedded systems with ABSOLUT framework

Vatjus-Anttila, Janne; Kreku, Jari; Korpi, Juha; Khan, Subayal; Saastamoinen, Jukka; Tiensyrjä, Kari

doi:10.1016/j.sysarc.2013.08.001

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Algorithmic Analysis of Blockchain Efficiency with Communication Delay

Pinzón

Rocha

Finke

2020

Fundamental Approaches to Software Engineering

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This paper proposes a random network model for blockchains, a distributed hierarchical data structure of blocks that has found several applications in various industries. The model is parametric on two probability distribution functions governing block production and communication delay, which are key to capture the complexity of the mechanism used to synchronize the many distributed local copies of a blockchain. The proposed model is equipped with simulation algorithms for both bounded and unbounded number of distributed copies of the blockchain. They are used to study fast blockchain systems, i.e., blockchains in which the average time of block production can match the average time of message broadcasting used for blockchain synchronization. In particular, the model and the algorithms are useful to understand efficiency criteria associated with fast blockchains for identifying, e.g., when increasing the block production will have negative impact on the stability of the distributed data structure given the network's broadcast delay.

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