Design and Simulation BPSK and QPSK Modulation Using VHDL
نویسندگان
چکیده
منابع مشابه
FPGA Implementation of Digital Modulation Schemes: BPSK and QPSK Using VHDL
This paper presents the simulation results of digital modulation schemes BPSK and QPSK. Digital modulation is less complex, more secure and more efficient in long distance transmission. The noise detection and correction in digital is more efficient than analog. So it has more importance in modern communication system. These digital modulation schemes can be realized using FPGA ( Field Programm...
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Modulation techniques have concerned increasing attention in optical wireless communications. Downlink transmission (base station to mobile terminal) using high data rate Mary Quadrature Amplitude Modulation (QAM), Quadrature Phase Shift Keying (QPSK) and Binary Phase Shift Keying (BPSK) modulation schemes are considered in a Wideband-Code Division Multiple Access (W-CDMA) system. QPSK or Quadr...
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Quadrature Phase Shift Keying (QPSK) is a modulation scheme commonly used in wireless communication system and it’s because of its ability to transmit twice the data rate for a given bandwidth. In most cases, the QPSK modulator consumes less power and bandwidth in a modern devices but for a system like satellite and mobile devices where their operations are power limited, this is a problem that...
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This paper introduces a method that computes an estimation of the bit error rate (BER) based on the RAKE receiver soft output only. For this method no knowledge is needed about the channel characteristics nor the precise external conditions. Simulations show that the mean error of the estimation is below 2%, with only a small variance. Also an estimation of the BER for a different spreading fac...
متن کاملDesign of Digital Modulators: BASK, BPSK and BFSK using VHDL
Digital modulation is less complex, more secure and more efficient in long distance transmission. The noise detection and correction in digital is more efficient than analog counterpart. So it has more importance in modern communication. Digital modulation represents the transfer of the digital bit stream from the transmitter to the receiver via the analog channels. During the modulation proces...
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ژورنال
عنوان ژورنال: Journal of Engineering and Applied Sciences
سال: 2019
ISSN: 1816-949X
DOI: 10.36478/jeasci.2019.287.292