Abstract—This paper proposes a field-programmable gate array (FPGA) architecture of two different modulation schemes, i.e. quadrature phase-shift keying (QPSK) and offset QPSK using hardware description language (HDL) optimized model. It also presents an overview of the FPGA device utilization and performance parameters for both modulation techniques using proposed optimized design. Performance results are provided in terms of the speed of the circuit to show the superiority of the proposed architecture. In this paper, QPSK and OQPSK modulation techniques have been implemented on FPGA using VHSIC (Very High Speed Integrated Circuit) Hardware Description Language (VHDL) on Xilinx ISE 14.1


Index Terms—FPGA, VHDL, QPSK modulation, OQPSK modulation



Cite: Raja Muthalagu, Rahul Sudheer, and Seyed Ibrahim, FPGA Implementation of Optimized QPSK and OQPSK Using VHDL," Journal of Communications, vol. 13, no. 4, pp. 182-186, 2018. Doi: 10.12720/jcm.13.4.182-186.