LIPIcs.DISC.2024.37.pdf
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We flesh out some details of the recently proposed Simplex atomic broadcast protocol, and modify it so that leaders disperse blocks in a more communication-efficient fashion. The resulting protocol, called DispersedSimplex, maintains the simplicity and excellent - indeed, optimal - latency characteristics of the original Simplex protocol. We also present a variant that supports "stable leaders". We also suggest a number of practical optimizations and provide concrete performance estimates that take into account not just network latency but also network bandwidth limitations and computational costs.
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