A low complexity PAPR reduction scheme based on radix-II IFFT
Due to no feedback process and simplicity in searching algorithm, conventional selected mapping (CSLM) is an efficient crest factor reduction (CFR) technique in orthogonal frequency division multiplexing (OFDM) systems. However high number of inverse fast Fourier transform (IFFT) block is required t...
| Main Authors: | , , , |
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| Format: | Conference or Workshop Item |
| Language: | English |
| Published: |
IEEE
2015
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| Online Access: | http://psasir.upm.edu.my/id/eprint/53999/ http://psasir.upm.edu.my/id/eprint/53999/1/A%20low%20complexity%20PAPR%20reduction%20scheme%20based%20on%20radix-II%20IFFT.pdf |
| _version_ | 1848852426981900288 |
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| author | Kazemian, Mohsen Varahram, Pooria Mohd Ali, Borhanuddin Mohammady, Somayeh |
| author_facet | Kazemian, Mohsen Varahram, Pooria Mohd Ali, Borhanuddin Mohammady, Somayeh |
| author_sort | Kazemian, Mohsen |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Due to no feedback process and simplicity in searching algorithm, conventional selected mapping (CSLM) is an efficient crest factor reduction (CFR) technique in orthogonal frequency division multiplexing (OFDM) systems. However high number of inverse fast Fourier transform (IFFT) block is required to achieve the desired PAPR reduction performance. In this paper a PAPR reduction method based on N point radix-2 IFFT is proposed in which the number of IFFTs is reduced to one. The gist of the proposed method is based on storing a part of calculations and using them for the next searching operation results in elimination of the redundant calculations. Simulation results show at least 46.8% complexity reduction compared to CSLM by comparable PAPR performance. |
| first_indexed | 2025-11-15T10:37:54Z |
| format | Conference or Workshop Item |
| id | upm-53999 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T10:37:54Z |
| publishDate | 2015 |
| publisher | IEEE |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-539992017-06-07T04:41:46Z http://psasir.upm.edu.my/id/eprint/53999/ A low complexity PAPR reduction scheme based on radix-II IFFT Kazemian, Mohsen Varahram, Pooria Mohd Ali, Borhanuddin Mohammady, Somayeh Due to no feedback process and simplicity in searching algorithm, conventional selected mapping (CSLM) is an efficient crest factor reduction (CFR) technique in orthogonal frequency division multiplexing (OFDM) systems. However high number of inverse fast Fourier transform (IFFT) block is required to achieve the desired PAPR reduction performance. In this paper a PAPR reduction method based on N point radix-2 IFFT is proposed in which the number of IFFTs is reduced to one. The gist of the proposed method is based on storing a part of calculations and using them for the next searching operation results in elimination of the redundant calculations. Simulation results show at least 46.8% complexity reduction compared to CSLM by comparable PAPR performance. IEEE 2015 Conference or Workshop Item PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/53999/1/A%20low%20complexity%20PAPR%20reduction%20scheme%20based%20on%20radix-II%20IFFT.pdf Kazemian, Mohsen and Varahram, Pooria and Mohd Ali, Borhanuddin and Mohammady, Somayeh (2015) A low complexity PAPR reduction scheme based on radix-II IFFT. In: 2015 IEEE International Conference on Consumer Electronics (ICCE), 9-12 Jan. 2015, Las Vegas, Nevada, United States. (pp. 420-421). 10.1109/ICCE.2015.7066469 |
| spellingShingle | Kazemian, Mohsen Varahram, Pooria Mohd Ali, Borhanuddin Mohammady, Somayeh A low complexity PAPR reduction scheme based on radix-II IFFT |
| title | A low complexity PAPR reduction scheme based on radix-II IFFT |
| title_full | A low complexity PAPR reduction scheme based on radix-II IFFT |
| title_fullStr | A low complexity PAPR reduction scheme based on radix-II IFFT |
| title_full_unstemmed | A low complexity PAPR reduction scheme based on radix-II IFFT |
| title_short | A low complexity PAPR reduction scheme based on radix-II IFFT |
| title_sort | low complexity papr reduction scheme based on radix-ii ifft |
| url | http://psasir.upm.edu.my/id/eprint/53999/ http://psasir.upm.edu.my/id/eprint/53999/ http://psasir.upm.edu.my/id/eprint/53999/1/A%20low%20complexity%20PAPR%20reduction%20scheme%20based%20on%20radix-II%20IFFT.pdf |