FPGA-based BASK and BPSK Modulators Using VHDL: Design, Applications and Performance Comparison for Different Modulator Algorithms

Abstract

This paper presents the simulation results of binary digital modulation schemes. In this paper, for BASK and BPSK modulation techniques used FPGA algorithm, multiplier don't using. If multiplier block is used for multiplication bit stream with carrier signal, used time will rises. In addition using multiplier block obtained simulation results were analyzed and compared to other simulation results. Source consumptions of FPGA-based BASK modulation technique and BPSK modulation technique were compared. Also, for different modulation algorithm, source consumptions of BASK and BPSK modulation technique were analyzed using VHDL and Quartus 9.2 complier. Designed modulators using VHSIC (Very High Speed Integrated Circuit) Hardware Description Language (VHDL) was realized on high speed FPGA (Field Program Programmable Gate Array). Because for used modulation technique data rate transfer is fairly important in wireless communication systems. The highest speed data rate transfer can be realized using fiber optic cables. In addition, BER (Bit Error Rate) of BASK and BPSK modulator was compared using MATLAB simulation program. Binary data rate is same for BPSK and BASK. BPSK and BASK modulations were designed on FPGA using VHDL hardware description language.

Simulation of BASK,BPSK,BFSKmodulators using verilog

“…General purpose microprocessors, such as the Intel and AMD devices usually found in personal computers, are not specialized for any particular application [2].Therefore, they are very flexible. However, SDR systems using general purpose processors are often wasteful since these processors are designed for speed and generality rather than power efficiency or mathematical operations [3].…”

Design and Implementation of Programmable Multi-Mode Digital Modulator for SDR Using FPGA

“…he current and future wireless communication standards are rapidly changing and growing along with conventional standards. The conventional mobile phone could support only limit number of standards and the modern technology has changed toward the software defined radio (SDR) idea [1]. The technology of SDR need reconfigure digital components to performs the necessary digital signal processing (DSP) with transceiver of baseband information in the intermediate frequency (IF).…”

“…The input of QAM with one or zero values is mapped to symbol through polar conversion and local oscillator generate carrier sinusoidal signal with specific frequency to be mixed by multiplier to produce QAM modulating signal [17]. The proposed modulator could be integrated with QAM modulator communication standards and with all standard illustrated in Table (1). The capability of single device to work with multiple wireless communication standards is engaged under SDR technology [18].…”