A new low complexity NLOS identification approach based on UWB energy detection

Authors:
Abdelmadjid Maali;Hassane Mimoun;Geneviève Baudoin;Abdelaziz Ouldali
Affiliations:
Communications Systems Laboratory, EMP, Algiers, Algeria;Université Paris Est, ESIEE Paris, Noisy-le-Grand Cedex, France;Université Paris Est, ESIEE Paris, Noisy-le-Grand Cedex, France;Communications Systems Laboratory, EMP, Algiers, Algeria
Venue:
RWS'09 Proceedings of the 4th international conference on Radio and wireless symposium
Year:
2009

Citing 2
Cited 1

NLOS identification and weighted least-squares localization for UWB systems using multipath channel statistics

EURASIP Journal on Advances in Signal Processing
Energy-Based TOA Estimation

IEEE Transactions on Wireless Communications

LOS/NLOS detection for UWB signals: a comparative study using experimental data

ISWPC'10 Proceedings of the 5th IEEE international conference on Wireless pervasive computing

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Abstract

The major problem of indoor localization is the presence of Non-line-of-sight (NLOS) channels. In order to perform the NLOS identification, this paper proposes a new NLOS identification approach. It is based on the energy statistics of the direct-path pulse (DPP) and on the statistics of the delay between the strongest-energy pulse and the DPP energy of the received signal folded version. The simplicity of the proposed approach lies in the use of the parameters of the Energy-Based time of arrival (TOA) Estimation (EBE) algorithm. The CM1 and CM2 channel models of the standard IEEE802.15.4a are used. Numerical simulations results show that the correct identification of channel models with the proposed approach is better than with the multipath channel statistics based approach.