### Abstract

A fluid queue receiving its input from the output of a preceding M/M/1 queue is considered. The input can be characterized as a Markov modulated rate process and the well known spectral decomposition technique can be applied. The novel features in this system relate to the nature of the spectrum, which is shown to be composed of a continuous part and one or two discrete points depending on whether the load of the fluid queue is less or greater than the output to input rate ratio. Explicit expressions of the generalized eigenvectors are given in terms of Chebyshev polynomials of the second kind, and the resolution of unity is determined. The solution for the buffer content distribution is obtained as a simple integral expression. Numerical examples are given.

Original language | English |
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Pages (from-to) | 373-386 |

Number of pages | 14 |

Journal | Queueing Systems |

Volume | 16 |

Issue number | 3-4 |

DOIs | |

Publication status | Published - 1994 |

MoE publication type | A1 Journal article-refereed |

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## Cite this

Virtamo, J., & Norros, I. (1994). Fluid queue driven by an M/M/1 queue.

*Queueing Systems*,*16*(3-4), 373-386. https://doi.org/10.1007/BF01158963