A modified CA-CFAR method for LTE random access detection

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 upo...

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Bibliographische Detailangaben
Hauptverfasser:	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.
Format:	Tagungsbericht
Sprache:	eng
Schlagworte:	CA-CFAR CAZAC Correlation Detectors Frequency-domain analysis Long Term Evolution LTE PRACH Random Access Preamble Detection Receivers Signal to noise ratio Zadoff-Chu Sequence
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Beschreibung
Zusammenfassung:	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.
DOI:	10.1109/ICSPCS.2013.6723992