A modified CA-CFAR method for LTE random access detection
Felipe A. P. de Figueiredo, João Paulo Miranda, Fabbryccio A. C. M. Cardoso, Karlo Gusso Lenzi, Jose A. B. Filho, Fabricio Lira Figueiredo · 2013
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.