Statistical distance estimation algorithms With RSS measurements for indoor LTE-A networks

Chien Hua Chen, Kai-Ten Feng

Research output: Contribution to journalArticle

4 Scopus citations

Abstract

An indoor base station (BS), such as a remote radio head or home eNodeB, is a cost-effective solution to achieve ubiquitous access and positioning functions in indoor Long-Term Evolution Advanced (LTE-A) networks. In this paper, two distance estimation algorithms adopt received signal strength (RSS) to estimate the corresponding distance between a BS and a mobile station. The statistical inference distance estimation (SIDE) algorithm is proposed to provide a consistent distance estimator when the particle number is larger than an inferential theoretic lower bound given a confidence level and an error constraint. Moreover, the particle-based distance estimation (PDE) algorithm is proposed to estimate distance information with the technique of particle filtering under mixed line-of-sight (LOS) and non-line-of-sight (NLOS) conditions in indoor LTE-A networks. Furthermore, the theoretic Cramér-Rao lower bound (CRLB), considering the variations from fading effects and time-variant channels, is derived as a benchmark to evaluate the precision of distance estimators. The performance of the proposed SIDE algorithm is verified through simulations, and the results fulfill the requirements of different confidence levels and error constraints. Furthermore, the proposed PDE algorithm outperforms other distance estimation schemes and reveals robustness against mixed-sight and time-variant indoor LTE-A networks.

Original languageEnglish
Article number2558625
Pages (from-to)1709-1722
Number of pages14
JournalIEEE Transactions on Vehicular Technology
Volume66
Issue number2
DOIs
StatePublished - 1 Feb 2017

Keywords

  • Non-line-of-sight (NLOS)
  • Particle filter
  • Pathloss model (plm)
  • Wireless distance estimation

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