• Media type: E-Article
  • Title: Fast synthesis of persistent fractional Brownian motion
  • Contributor: Inácio, Pedro R. M.; Freire, Mário M.; Pereira, Manuela; Monteiro, Paulo P.
  • imprint: Association for Computing Machinery (ACM), 2012
  • Published in: ACM Transactions on Modeling and Computer Simulation
  • Language: English
  • DOI: 10.1145/2133390.2133395
  • ISSN: 1049-3301; 1558-1195
  • Origination:
  • Footnote:
  • Description: <jats:p>Due to the relevance of self-similarity analysis in several research areas, there is an increased interest in methods to generate realizations of self-similar processes, namely in the ones capable of simulating long-range dependence. This article describes a new algorithm to approximate persistent fractional Brownian motions with a predefined Hurst parameter. The algorithm presents a computational complexity of<jats:italic>O</jats:italic>(<jats:italic>n</jats:italic>) and generates sequences with<jats:italic>n</jats:italic>(<jats:italic>n</jats:italic>∈ N) values with a small multiple of log<jats:sub>2</jats:sub>(<jats:italic>n</jats:italic>) variables. Because it operates in a sequential manner, the algorithm is suitable for simulations demanding real-time operation. A network traffic simulator is presented as one of its possible applications.</jats:p>