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This work aims to design and implement Quadrature Phase Shift Keying (QPSK) baseband modulation-demodulation (MODEM) system on the CEVA-XC321 fixed point digital signal processor (DSP) and to compare its performance with industry standard DSP processors and FPGA based implementations. The modem function was developed in Vec-C language by utilizing two Vector Computation Units (VCU) of CEVA and verified...
In this paper we present a system design that incorporates the functionalities of a digital modulator/demodulator along with controlling features such as symbol generation, filtering, modulation, demodulation, phase and timing recovery for QPSK and 16 QAM modulation schemes. It is concluded that for a BER of 10-5 an Eb/No of 13.5 dB and 9.5 dB is required for 16 QAM and QPSK respectively. Simulation...
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