A packet delay analysis for cellular digital packet data

W. A. Massey, R. Srinivasan

Research output: Contribution to journalArticlepeer-review

9 Scopus citations


In this paper, we formulate and analyze a model of voice and data burst traffic for cellular digital packet data (CDPD). To develop a tractible model, we make some reasonable simplifying assumptions to model the voice traffic and one of the logical CDPD channels as an M/M/1 queue in a random environment Rather than explicitly solve the resulting matrix quadratic equation, we develop an asymptotic analysis that gives us simple approximate formulas (with error bounds) for many performance measures of interest In particular, one metric that we highlight comes from using our approximate mean data burst delay formula to characterize the performance of a set of interacting logical CDPD channels. We do so by describing it in terms of an equivalent number of independent, dedicated CDPD channels. We can use this metric to suggest what the optimal number of logical CDPD channels for a given system should be.

Original languageEnglish (US)
Pages (from-to)1364-1372
Number of pages9
JournalIEEE Journal on Selected Areas in Communications
Issue number7
StatePublished - Sep 1997
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Electrical and Electronic Engineering


  • Approximation methods
  • Land mobile radio cellular systems
  • Land mobile radio data communication
  • Markov processes
  • Matrix decomposition
  • Mobile communication
  • Probability


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