Please use this identifier to cite or link to this item: http://hdl.handle.net/10603/299511
Title: Certain investigations on reconfigurable low power architecture for ofdm with noise suppression
Researcher: Manikanda devarajan N
Guide(s): Chandrasekaran M
Keywords: Low power architecture
Noise suppression
Orthogonal frequency division multiplexing
University: Anna University
Completed Date: 2019
Abstract: The Orthogonal Frequency Division Multiplexing OFDM communication system is used in various modern day wireless standards The vital component in mobile and wireless communication is OFDM The Orthogonal Frequency Division Multiplexing technique is used in various wireless standards such as Wireless Local Area Network WLAN WiMAX and Digital Video Broadcasting Terrestrial The OFDM system consists of the Mapper Serial to Parallel converter Pilot insertion block Inverse Fast Fourier Transform IFFT Parallel to Serial converter Analog to Digital ADC unit Fast Fourier Transform FFT and Digital to Analog DAC unit OFDM follows multi carrier technique where the many carriers are obtained by splitting the spectrum The digital modulation of the original message is carried out as the initial process of OFDM Then the FFT will convert the time domain signal to frequency domain signal The IFFT will reverse the operation of FFT The increasing need for mobile applications in the fast growing technology require this OFDM to integrate with the applications The OFDM system can be realized in two ways namely FFT and Discrete Wavelet Transform DWT The OFDM FFT shows a performance improvement in terms of area speed and power but fails to improve Peak to Average Power Ratio PAPR On the other hand, the OFDM DWT shows a promising improvement in terms of PAPR This research work presents a reconfigurable OFDM which will configure between the FFT and DWT based on the application needs This reconfigurable OFDM system is developed using Verilog HDL and targeted in various FPGA devices like Spartan 3E Complex Programmable Logic Devices CPLD and Virtex This OFDM system shows a remarkable performance improvement in terms of PAPR at the cost of area overhead The proposed OFDM saves 58.67% and 57.05% sliced Look UpTable LUT and Gate Element GE respectively with respect to shared resources. newline
Pagination: xx,136p.
URI: http://hdl.handle.net/10603/299511
Appears in Departments:Faculty of Information and Communication Engineering

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02_certificates.pdf.pdf704.77 kBAdobe PDFView/Open
03_abstracts.pdf.pdf200.33 kBAdobe PDFView/Open
04_acknowledgements.pdf.pdf181.09 kBAdobe PDFView/Open
05_contents.pdf.pdf90.84 kBAdobe PDFView/Open
06_list_of_tables.pdf.pdf86.17 kBAdobe PDFView/Open
07_list_of_figures.pdf.pdf89.18 kBAdobe PDFView/Open
08_list_of_abbreviations.pdf.pdf446.11 kBAdobe PDFView/Open
09_chapter1.pdf.pdf240.25 kBAdobe PDFView/Open
10_chapter2.pdf.pdf321.56 kBAdobe PDFView/Open
11_chapter3.pdf.pdf1.6 MBAdobe PDFView/Open
12_chapter4.pdf.pdf638.07 kBAdobe PDFView/Open
13_chapter5.pdf.pdf868.43 kBAdobe PDFView/Open
14_conclusion.pdf.pdf108.77 kBAdobe PDFView/Open
15_references.pdf.pdf233.79 kBAdobe PDFView/Open
16_list_of_publications.pdf202.24 kBAdobe PDFView/Open
80_recommendation.pdf197.77 kBAdobe PDFView/Open
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