Experimental investigation of spectrum sensing for LTE frequency band based on USRP 2920/VST 5644

LTE has emerged as the most efficient and high speed 3rd generation mobile communication technology. A Experimental demonstrator has been implemented on a USRP 2920 LABVIEW 2012, It demonstrates the sensing algorithm on a real platform. In this paper, Experiment is conducted on spectrum sensing techniques using USRP 2920 and MIMO implementation based real time simulation set-up. Spectrum band around 2100 MHz at 1 MHz sampling rate has been chosen which falls in LTE down link band. USRP 2920 has been used in the experimental study. The focus of the paper is to bring out the uniqueness of using USRP in Software defined radio. The work presented in the paper primarily focuses on the concept of spectrum sensing using practical set-up based on USRP 2920/ VST 5644 and LabVIEW software platform for a LTE bases system at frequency of 2.1 GHz.

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