Dynamic performance of IEEE 802.15.4 devices under persistent WiFi traffic

Cheng Leong Lim, Michael Bolt, Aly Syed, Patrick Ng, Cindy Goh, Yun Li

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

10 Citations (Scopus)

Abstract

Recent studies have provided coexistence and interaction models between IEEE 802.15.4 and IEEE 802.11 standards. However, the performance of IEEE 802.15.4 devices under WiFi interference are evaluated based on limit parameters i.e. Packet Reception Rate, which does not exhibit the dynamic interactions in the wireless channel. In this paper, we conduct a series of experiments to demonstrate the dynamic interactions between the IEEE 802.15.4 and IEEE 802.11 bgn standards on relevant devices. The performance of four existing Link Quality Estimators (LQEs) of IEEE 802.15.4 nodes under the IEEE 802.11 bgn interference is analyzed. We show that IEEE 802.15.4 transmission failures are largely due to channel access failures rather than corrupted data packets. Based on the analysis, we propose a new LQE - Packet Reception Rate with Clear Channel Assessment - by merging the Clear Channel Assessment count with the Packet Reception Rate. In comparison to existing LQEs, results show that the new estimator distinguishes persistent IEEE 802.11 bgn traffic more robustly.

Original languageEnglish
Title of host publication2015 International Conference on Recent Advances in Internet of Things, RIoT 2015
Number of pages6
DOIs
Publication statusPublished - 7 Apr 2015
Event2015 International Conference on Recent Advances in Internet of Things, RIoT 2015 - Singapore, Singapore
Duration: 7 Apr 20159 Apr 2015

Conference

Conference2015 International Conference on Recent Advances in Internet of Things, RIoT 2015
CountrySingapore
CitySingapore
Period7/04/159/04/15

Keywords

  • 802.15.4
  • clear channel accessment
  • coexistence
  • interference
  • WiFi

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