Toward digital transmitters with Amplitude Shift Keying and Quadrature Amplitude Modulators implementation examples

Al-Safi, Amean; Bazuin, Bradley J.

doi:10.1109/ccwc.2017.7868397

Cited by 10 publications

(15 citation statements)

References 14 publications

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“…The results presented here, are some important information of the synthesis. A comparison is also done to compare the resource utilization of our proposed circuits and the circuit proposed by Amean & al [20].…”

Section: Simulation Resultsmentioning

confidence: 99%

“…Table 1 denotes comparison of resources, power utilization and speed of ASK modulators using cyclone IV E EP4CE115F29C7N. Calculation of resources, power utilization and speed based on synthesis report shows that, the required resources (both logic elements and logic registers) of our proposed ASK modulators is greater than that of the design proposed in study of Al-Safi and Bazuin [20], the required resources (both memory bits and embedded multiplier) of our proposed ASK modulators is nil while the design proposed in study of Al-Safi and Bazuin [20] is important, our proposed ASK modulators consume less power and are limited in frequency than design proposed in study of Al-Safi and Bazuin [20] (see Table 1). Table 2 itemizes resources, power utilization and speed of QAM modulators using cyclone IV E EP4CE115F29C7N.…”

Section: Comparisonsmentioning

confidence: 93%

“…An Altera chip is chosen for resources, power consumption and speed comparison between the proposed modulators and the circuit proposed in study of Al-Safi and Bazuin [20] using LUT to implement the sinusoidal functions. Table 1 denotes comparison of resources, power utilization and speed of ASK modulators using cyclone IV E EP4CE115F29C7N.…”

Section: Comparisonsmentioning

confidence: 99%

See 2 more Smart Citations

Hardware Implementation of Amplitude Shift Keying and Quadrature Amplitude Modulators Using FPGA

Ecladore¹,

Tchitnga²,

Bertrand³

2021

CSSP

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In our paper, we present the implementation of two kinds of FPGA-based modulators: ASK and QAM signal modulators. The ASK modulators we implemented are OOK, ASK, and 4ASK, then the QAM modulators implemented are 4QAM and 16QAM. The generation of the sine wave carrier is the main task when implementing any digital transmitter including ASK and QAM modulators. For us to implement these modulators, a sine function with floating-point operation as per IEEE754 standards is used based on Hardware Description Language technique. When the carrier is generated, the digital message modulates the amplitude of the carrier. To implement the QAM modulator, we need two sinusoidal carriers. A cosine function and a sine function are built to get the two carriers. Alongside to this work, ASK and QAM signal modulators are implemented using 26-bit phase accumulator and Look Up Table to generate the sine and cosine functions, then comparison of speed, occupied area and estimated power consume are done with the proposed modulators. Without using DSP builder tools or an Altera system generator, we implemented the whole systems using VHDL on cyclone IV-E-EP4CE115F29C7N of the board DE2-115. In general, the proposed modulator design present low area and power consummation than modulator using LUT or CORDIC.

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Section: Simulation Resultsmentioning

confidence: 99%

Section: Comparisonsmentioning

confidence: 93%

See 1 more Smart Citation

Hardware Implementation of Amplitude Shift Keying and Quadrature Amplitude Modulators Using FPGA

Ecladore¹,

Tchitnga²,

Bertrand³

2021

CSSP

View full text Add to dashboard Cite

show abstract

“…The high utilization cost usually caused by the carrier wave generation, phase shifting, and multiplication instructions. Al-safi and Bazuin presented several papers that reduced the implementation cost caused by multiplication instructions and phase shifting [6]- [7] by using Feher modulation concept [8]. This research paper presents a new method to reduce the cost generated by carrier wave by using a reduced size Look Up Table (LUT).…”

Section: Problem Statementmentioning

confidence: 99%

“…Not only the high cost is the problem, it also doesn't give the design engineers a direct control on their implemented systems. To solve these issues, several papers have been presented such as the work of Al-safi and Bazuin [6]- [7].Their work used VHDL as the main implementation tool without using any Co simulation tools, or Intellectual Property (IP) blocks.…”

Section: Introductionmentioning

confidence: 99%

A reduced size look up table for sinusoidal wave generation in digital modulators applications

Al-Safi

2018

PEN

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Digital Modulators is one of the areas that have received great attention recently due to the tremendous developments in Radio Frequency (RF) frond ends and system on chips (soc) architecture in general. Building any kind of digital modulators using soc type Field Programmable Gate Array (FPGA), like ZYBO, depends heavily on how the carrier signal got generated since it consumes a lot of utilization recourses. This paper presents a new method of generating sinusoidal carrier signal based on Direct Digital Synthesizer (DDS) concept using small size Look Up Table (LUT). 64 samples of a quarter period of the sine wave signal were stored in a fixed point format in small LUT to generate the carrier at the desire frequency. The paper used Very high speed integrated circuit Hardware Descriptive Language (VHDL) without the help of DSP Builder Tools or XILINX System Generator. The suggested method was tested by building simple modulators like On-Off Keying (OOK) and Amplitude Shift Keying (ASK). Low utilization was achieved as compared to other implementation methods.

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Development of an FPGA based Indoor Free Space Optical (FSO) Communication System using 808 nm Infrared (IR) LASER Source

Sarkar

Sinha

Mukherjee

et al. 2020

2020 IEEE Calcutta Conference (CALCON)

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Toward digital transmitters with Amplitude Shift Keying and Quadrature Amplitude Modulators implementation examples

Cited by 10 publications

References 14 publications

Hardware Implementation of Amplitude Shift Keying and Quadrature Amplitude Modulators Using FPGA

Hardware Implementation of Amplitude Shift Keying and Quadrature Amplitude Modulators Using FPGA

A reduced size look up table for sinusoidal wave generation in digital modulators applications

Development of an FPGA based Indoor Free Space Optical (FSO) Communication System using 808 nm Infrared (IR) LASER Source

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