A modified CA-CFAR method for LTE random access detection

Author

de Figueiredo, Felipe A. P. ; Miranda, Joao Paulo C. L. ; Cardoso, Fabbryccio A. C. M. ; Lenzi, Karlo G. ; Bianco Filho, Jose A. ; Figueiredo, Fabricio L.

Author_Institution

Convergent Networks Dept., CPqD - R&D Center, Campinas, Brazil

fYear

2013

fDate

16-18 Dec. 2013

Firstpage

1

Lastpage

6

Abstract

Random Access is an important aspect of mobile systems where multiple users are always competing for resources. However, noise imposes a significant problem to those systems causing them to falsely detect access requests. In consequence, unnecessary processing and air traffic are generated based upon these unreal request events. This paper presents a modified Cell-Average Constant False Alarm Rate (CA-CFAR) strategy used for random access detection of CAZAC preambles in the presence of noise. Simulation results indicate that the proposed method performs well even in the case of low SNR.

Keywords

Long Term Evolution; air traffic; cellular radio; frequency division multiple access; signal detection; CA-CFAR method; CAZAC; LTE random access detection; SNR; air traffic; cell-average constant false alarm rate strategy; Correlation; Detectors; Frequency-domain analysis; Long Term Evolution; Receivers; Signal to noise ratio; CA-CFAR; CAZAC; LTE; PRACH; Random Access Preamble Detection; Zadoff-Chu Sequence;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing and Communication Systems (ICSPCS), 2013 7th International Conference on

Conference_Location

Carrara, VIC

Type

conf

DOI

10.1109/ICSPCS.2013.6723992

Filename

6723992