Tracking in wireless sensor networks using particle filtering: Physical layer considerations

Onur Ozdemir, Ruixin Niu, Pramod K. Varshney

Research output: Contribution to journalArticlepeer-review

67 Scopus citations


In this paper, a new framework for target tracking in a wireless sensor network using particle filters is proposed. Under this framework, the imperfect nature of the wireless communication channels between sensors and the fusion center along with some physical layer design parameters of the network are incorporated in the tracking algorithm based on particle filters. We call this approach "channel-aware particle filtering." Channel-aware particle filtering schemes are derived for different wireless channel models and receiver architectures. Furthermore, we derive the posterior Cramér-Rao lower bounds (PCRLBs) for our proposed channel-aware particle filters. Simulation results are presented to demonstrate that the tracking performance of the channel-aware particle filters can reach their theoretical performance bounds even with relatively small number of sensors and they have superior performance compared to channel-unaware particle filters.

Original languageEnglish (US)
Pages (from-to)1987-1999
Number of pages13
JournalIEEE Transactions on Signal Processing
Issue number5
StatePublished - 2009


  • Channel-aware signal processing
  • Particle filters
  • Posterior Cramér-Rao lower bound
  • Wireless communication channels
  • Wireless sensor networks (WSNs)

ASJC Scopus subject areas

  • Signal Processing
  • Electrical and Electronic Engineering


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