CA-CFAR threshold selection for IR-UWB TOA estimation

Author

Maali, Abdelmadjid ; Mesloub, Ammar ; Djeddou, Mustapha ; Baudoin, Geneviève ; Mimoun, Hassane ; Ouldali, Abdelaziz

Author_Institution

Commun. Syst. Lab., EMP, Algiers, Algeria

fYear

2011

fDate

9-11 May 2011

Firstpage

279

Lastpage

282

Abstract

In this paper, we simplify the architecture of the cell averaging constant false alarm rate (CA-CFAR) approach used in time-of-arrival (TOA) estimation for impulse radio ultra wideband (IR-UWB) systems. The CA-CFAR approach uses the received signal samples provided by the non-coherent energy detection (ED) receivers. The modified approach is evaluated by Monte Carlo simulation on the CM1 channel model of the standard IEEE802.15.4a. The effects of the reference cells number and the guard cells duration on the performances of the modified CA-CFAR approach are studied. The simulation demonstrates that the modified approach gives better results than the conventional approaches.

Keywords

Monte Carlo methods; Zigbee; radio receivers; time-of-arrival estimation; ultra wideband communication; CA-CFAR threshold selection; CM1 channel model; IEEE802.15.4a; IR-UWB TOA estimation; Monte Carlo simulation; cell averaging constant false alarm rate; impulse radio; noncoherent energy detection receivers; received signal samples; time-of-arrival estimation; ultrawideband systems; Computer architecture; Estimation; Microprocessors; Receivers; Signal to noise ratio; Time of arrival estimation;

fLanguage

English

Publisher

ieee

Conference_Titel

Systems, Signal Processing and their Applications (WOSSPA), 2011 7th International Workshop on

Conference_Location

Tipaza

Print_ISBN

978-1-4577-0689-9

Type

conf

DOI

10.1109/WOSSPA.2011.5931473

Filename

5931473