A recursive optimum frequency domain matrix to reduce crest factor in OFDM systems
One of the main imperfections in orthogonal frequency division multiplexing (OFDM) technique 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 techn...
| Main Authors: | , , , |
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| Format: | Conference or Workshop Item |
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IEEE (IEEEXplore)
2014
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| Online Access: | http://psasir.upm.edu.my/id/eprint/41156/ |
| _version_ | 1848849619818119168 |
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| author | Varahram, Pooria Mohd Ali, Borhanuddin Mohammady, Somayeh Sulaiman, Nasri |
| author_facet | Varahram, Pooria Mohd Ali, Borhanuddin Mohammady, Somayeh Sulaiman, Nasri |
| author_sort | Varahram, Pooria |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | One of the main imperfections in orthogonal frequency division multiplexing (OFDM) technique 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 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 | 2025-11-15T09:53:17Z |
| format | Conference or Workshop Item |
| id | upm-41156 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-15T09:53:17Z |
| publishDate | 2014 |
| publisher | IEEE (IEEEXplore) |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-411562015-10-28T04:28:46Z http://psasir.upm.edu.my/id/eprint/41156/ A recursive optimum frequency domain matrix to reduce crest factor in OFDM systems Varahram, Pooria Mohd Ali, Borhanuddin Mohammady, Somayeh Sulaiman, Nasri One of the main imperfections in orthogonal frequency division multiplexing (OFDM) technique 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 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. IEEE (IEEEXplore) 2014 Conference or Workshop Item NonPeerReviewed Varahram, Pooria and Mohd Ali, Borhanuddin and Mohammady, Somayeh and Sulaiman, Nasri (2014) A recursive optimum frequency domain matrix to reduce crest factor in OFDM systems. In: 2014 IEEE International Conference on Consumer Electronics (ICCE), 10-13 Jan. 2014, Las Vegas, USA. (pp. 29-30). 10.1109/ICCE.2014.6775895 |
| spellingShingle | Varahram, Pooria Mohd Ali, Borhanuddin Mohammady, Somayeh Sulaiman, Nasri A recursive optimum frequency domain matrix to reduce crest factor in OFDM systems |
| title | A recursive optimum frequency domain matrix to reduce crest factor in OFDM systems |
| title_full | A recursive optimum frequency domain matrix to reduce crest factor in OFDM systems |
| title_fullStr | A recursive optimum frequency domain matrix to reduce crest factor in OFDM systems |
| title_full_unstemmed | A recursive optimum frequency domain matrix to reduce crest factor in OFDM systems |
| title_short | A recursive optimum frequency domain matrix to reduce crest factor in OFDM systems |
| title_sort | recursive optimum frequency domain matrix to reduce crest factor in ofdm systems |
| url | http://psasir.upm.edu.my/id/eprint/41156/ http://psasir.upm.edu.my/id/eprint/41156/ |