A crest factor reduction scheme based on recursive optimum frequency domain matrix
One of the main imperfections in orthogonal frequency division multiplexing (OFDM) techniques is a peak-to-average power ratio (PAPR) or crest factor (CF). High crest factor signal forces a power amplifier in communication systems to back-off which leads to power efficiency degradation. Several tech...
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| Format: | Article |
| Language: | English |
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Institute of Electrical and Electronics Engineers
2014
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| Online Access: | http://psasir.upm.edu.my/id/eprint/36151/ http://psasir.upm.edu.my/id/eprint/36151/1/A%20crest%20factor%20reduction%20scheme%20based%20on%20recursive%20optimum%20frequency%20domain%20matrix.pdf |
| _version_ | 1848848252438315008 |
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| author | Varahram, Pooria Mohd Ali, Borhanuddin |
| author_facet | Varahram, Pooria Mohd Ali, Borhanuddin |
| author_sort | Varahram, Pooria |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | One of the main imperfections in orthogonal frequency division multiplexing (OFDM) techniques is a peak-to-average power ratio (PAPR) or crest factor (CF). High crest factor signal forces a power amplifier in communication systems to back-off which leads to power efficiency degradation. Several techniques have been proposed in literature to mitigate the high peaks in OFDM signal; however most of them suffer from complexity and PAPR performance. In conventional SLM (C-SLM), increasing the number of inverse fast Fourier transform (IFFT) leads to excessive hardware resources requirement and increases system cost. In this paper a novel crest factor scheme based on recursive optimum frequency domain matrix is proposed which requires only two IFFT which results in significant reduction in the computational complexity. Simulation results show both the complexity and crest factor are reduced significantly compared to the conventional methods. |
| first_indexed | 2025-11-15T09:31:33Z |
| format | Article |
| id | upm-36151 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T09:31:33Z |
| publishDate | 2014 |
| publisher | Institute of Electrical and Electronics Engineers |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-361512015-10-07T03:40:10Z http://psasir.upm.edu.my/id/eprint/36151/ A crest factor reduction scheme based on recursive optimum frequency domain matrix Varahram, Pooria Mohd Ali, Borhanuddin One of the main imperfections in orthogonal frequency division multiplexing (OFDM) techniques is a peak-to-average power ratio (PAPR) or crest factor (CF). High crest factor signal forces a power amplifier in communication systems to back-off which leads to power efficiency degradation. Several techniques have been proposed in literature to mitigate the high peaks in OFDM signal; however most of them suffer from complexity and PAPR performance. In conventional SLM (C-SLM), increasing the number of inverse fast Fourier transform (IFFT) leads to excessive hardware resources requirement and increases system cost. In this paper a novel crest factor scheme based on recursive optimum frequency domain matrix is proposed which requires only two IFFT which results in significant reduction in the computational complexity. Simulation results show both the complexity and crest factor are reduced significantly compared to the conventional methods. Institute of Electrical and Electronics Engineers 2014 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/36151/1/A%20crest%20factor%20reduction%20scheme%20based%20on%20recursive%20optimum%20frequency%20domain%20matrix.pdf Varahram, Pooria and Mohd Ali, Borhanuddin (2014) A crest factor reduction scheme based on recursive optimum frequency domain matrix. IEEE Transactions on Consumer Electronics, 60 (2). 179 - 183. ISSN 0098-3063; ESSN: 1558-4127 http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6851991 10.1109/TCE.2014.6851991 |
| spellingShingle | Varahram, Pooria Mohd Ali, Borhanuddin A crest factor reduction scheme based on recursive optimum frequency domain matrix |
| title | A crest factor reduction scheme based on recursive optimum frequency domain matrix |
| title_full | A crest factor reduction scheme based on recursive optimum frequency domain matrix |
| title_fullStr | A crest factor reduction scheme based on recursive optimum frequency domain matrix |
| title_full_unstemmed | A crest factor reduction scheme based on recursive optimum frequency domain matrix |
| title_short | A crest factor reduction scheme based on recursive optimum frequency domain matrix |
| title_sort | crest factor reduction scheme based on recursive optimum frequency domain matrix |
| url | http://psasir.upm.edu.my/id/eprint/36151/ http://psasir.upm.edu.my/id/eprint/36151/ http://psasir.upm.edu.my/id/eprint/36151/ http://psasir.upm.edu.my/id/eprint/36151/1/A%20crest%20factor%20reduction%20scheme%20based%20on%20recursive%20optimum%20frequency%20domain%20matrix.pdf |