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Is Wireless Bad for Consensus in Blockchain?

Seungmo Kim

Abstract

This paper examines how wireless communication affects the performance of various blockchain consensus mechanisms, focusing on their scalability and decentralization. It introduces an analytical framework for quantifying these effects, backed by extensive simulations, underscoring its broad applicability to various consensus mechanisms despite wireless communication's unreliability.

Is Wireless Bad for Consensus in Blockchain?

Abstract

This paper examines how wireless communication affects the performance of various blockchain consensus mechanisms, focusing on their scalability and decentralization. It introduces an analytical framework for quantifying these effects, backed by extensive simulations, underscoring its broad applicability to various consensus mechanisms despite wireless communication's unreliability.
Paper Structure (11 sections, 2 equations, 3 figures)

This paper contains 11 sections, 2 equations, 3 figures.

Table of Contents

  1. Introduction
  2. Motivation
  3. State of the Art
  4. Contributions
  5. System Model
  6. Consensus among Wireless Nodes
  7. Analysis on Consensus Performance
  8. Scalability
  9. Decentralization
  10. Numerical Results
  11. Future Work

Figures (3)

  • Figure 1: Example scenario of gossip protocol among 400 nodes with $\mathsf{p}_{\text{fail}}=0.5$
  • Figure 2: Scalability $\textsf{R}$ versus the number of nodes ($\mathsf{p}_{\text{fail}}=5\%$, 10 transactions per block)
  • Figure 3: Decentralization level $\textsf{G}$ vs. node failure rate (PoW--$\mathsf{r}_{\text{cls}}=\{0.1, 0.3, 0.5\}$; PoS--$\mathsf{r}_{\text{v}}=0.2$; PoC--$\mathsf{r}_{\text{sfl}}=0.9$, $\Delta_{\text{sfl}}=0$)