Performance analysis of IEEE 802.15.4 with non-beacon-enabled CSMA/CA in non-saturated condition

  • Authors:

  • Tae Ok Kim;Hongjoong Kim;Junsoo Lee;Jin Soo Park;Bong Dae Choi

  • Affiliations:

  • Department of Mathematics and Telecommunication Mathematics Research Center, Korea University, Seoul, Korea;Department of Mathematics and Telecommunication Mathematics Research Center, Korea University, Seoul, Korea;Department of Computer Science, Sookmyung Women's University, Seoul, Korea;USN Service Division, KT, Seoul, Korea;Department of Mathematics and Telecommunication Mathematics Research Center, Korea University, Seoul, Korea

  • Venue:
  • EUC'06 Proceedings of the 2006 international conference on Embedded and Ubiquitous Computing
  • Year:
  • 2006

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Abstract

This paper proposes an analytical model of IEEE 802.15.4, which is a standard toward low complexity, low power consumption and low data rate wireless data connectivity. In this paper, we concentrate on the MAC performance of the IEEE 802.15.4 LR-WPAN in a star topology with unslotted CSMA/CA channel access mechanism under non-saturated modes. Our approach is to model stochastic behavior of one device as a discrete time Markov chain model. We believe that many WSN applications would benefit from our analytical model because many applications in WSN generate traffic in non-saturated mode. We obtain five performance measures : throughput, packet delay, number of backoff, energy consumption and packet loss probability. Our results are used to find optimal number of devices satisfying some QoS requirements