Wireless Communication System Design Using Labview and Software Defined Radio

Design and implementation of a wireless communication system using Labview and SDR (Software Defined Radio) is proposed. In this work, first, the transceiver schemes such as MPSK (M ary-Phase Shift Keying) and MQAM(M ary-Quadrature Amplitude Modulation) are implemented using Labview software where the effect of noise is considered for the analysis. Later, the same was implemented using the SDR kit NI-USRP (National Instruments- Universal software radio peripheral) 2920. The R&S (Rohde & Schwarz) power sensor is used to measure the received signal strength over the frequency band. The measured power levels are compared with that of the SDR emulated result and found that there is a good agreement. The detailed step-by-step procedure is presented for the MPSK and MQAM transmitter-receiver schemes. The procedure presented here may act as a reference material for prototyping the communication systems which will help in teaching the subjects with a practical insight.