Evaluating the Impact of Signal to Noise Ratio on IEEE 802.15.4 PHY-Level Packet Loss Rate

  • Authors:

  • M. Goyal;S. Prakash;W. Xie;Y. Bashir;H. Hosseini;A. Durresi

  • Affiliations:

  • -;-;-;-;-;-

  • Venue:
  • NBIS '10 Proceedings of the 2010 13th International Conference on Network-Based Information Systems
  • Year:
  • 2010

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Abstract

In this paper, we evaluate the impact of signal to noise ratio (SNR) on the PHY-level packet loss rates on IEEE 802.15.4 links under the additive white Gaussian noise and Rayleigh fading models. We show that IEEE 802.15.4 PHY-level packet loss rate has a step-like response to the SNR deterioration. In other words, the packet loss rate is largely unaffected by SNR deterioration as long as SNR is more than a threshold. However, even a small deterioration in SNR beyond this threshold causes the packet loss rate to approach1. This result implies that SNR may not serve as a fine-granularity metric to indicate the reliability of an IEEE 802.15.4 link.