An M/MMGI/1/K queuing model for IEEE 802.11 ad hoc networks

  • Authors:
  • Mustafa Özdemir;A. Bruce McDonald

  • Affiliations:
  • Northeastern University, Boston, MA;Northeastern University, Boston, MA

  • Venue:
  • PE-WASUN '04 Proceedings of the 1st ACM international workshop on Performance evaluation of wireless ad hoc, sensor, and ubiquitous networks
  • Year:
  • 2004

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Abstract

An M/MMGI/1/K queuing model is developed for the analysis of IEEE 802.11 DCF using RTS/CTS. Results are based on arbitrary contention conditions, namely, collision probabilities, transmission probabilities and contention window sizes vary arbitrarily among nodes contending for channel access. This is fundamentally different from earlier work. Results are presented for the fully-connected case and validated via simulation with statistical analysis. The main contributions are the analysis of DCF and the foundation for the analysis of multi-hop scenarios. A key element of the model is that complexity normally encountered is reduced by effectively restoring the independence between service times and packet inter-arrivals.