Peak-to-Average-Power-Ratio (PAPR) reduction in WiMAX and OFDM/A systems
<p>Abstract</p> <p>A peak to average power ratio (PAPR) reduction method is proposed that exploits the precoding or beamforming mode in WiMAX. The method is applicable to any OFDM/A systems that implements beamforming using dedicated pilots which use the same beamforming antenna we...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2011-01-01
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| Series: | EURASIP Journal on Advances in Signal Processing |
| Subjects: | |
| Online Access: | http://asp.eurasipjournals.com/content/2011/1/38 |
| _version_ | 1818144872104722432 |
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| author | Svantesson Thomas Khademi Seyran Viberg Mats Eriksson Thomas |
| author_facet | Svantesson Thomas Khademi Seyran Viberg Mats Eriksson Thomas |
| author_sort | Svantesson Thomas |
| collection | DOAJ |
| description | <p>Abstract</p> <p>A peak to average power ratio (PAPR) reduction method is proposed that exploits the precoding or beamforming mode in WiMAX. The method is applicable to any OFDM/A systems that implements beamforming using dedicated pilots which use the same beamforming antenna weights for both pilots and data. Beamforming performance depends on the relative phase shift between antennas, but is unaffected by a phase shift common to all antennas. PAPR, on the other hand, changes with a common phase shift and this paper exploits that property. An effective optimization technique based on sequential quadratic programming is proposed to compute the common phase shift. The proposed technique has several advantages compared with traditional PAPR reduction techniques in that it does not require any side-information and has no effect on power and bit-error-rate while providing better PAPR reduction performance than most other methods.</p> |
| first_indexed | 2024-12-11T11:54:28Z |
| format | Article |
| id | doaj.art-ceab048e0aca4409a2c59ac7f97d7177 |
| institution | Directory Open Access Journal |
| issn | 1687-6172 1687-6180 |
| language | English |
| last_indexed | 2024-12-11T11:54:28Z |
| publishDate | 2011-01-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | EURASIP Journal on Advances in Signal Processing |
| spelling | doaj.art-ceab048e0aca4409a2c59ac7f97d71772022-12-22T01:08:15ZengSpringerOpenEURASIP Journal on Advances in Signal Processing1687-61721687-61802011-01-012011138Peak-to-Average-Power-Ratio (PAPR) reduction in WiMAX and OFDM/A systemsSvantesson ThomasKhademi SeyranViberg MatsEriksson Thomas<p>Abstract</p> <p>A peak to average power ratio (PAPR) reduction method is proposed that exploits the precoding or beamforming mode in WiMAX. The method is applicable to any OFDM/A systems that implements beamforming using dedicated pilots which use the same beamforming antenna weights for both pilots and data. Beamforming performance depends on the relative phase shift between antennas, but is unaffected by a phase shift common to all antennas. PAPR, on the other hand, changes with a common phase shift and this paper exploits that property. An effective optimization technique based on sequential quadratic programming is proposed to compute the common phase shift. The proposed technique has several advantages compared with traditional PAPR reduction techniques in that it does not require any side-information and has no effect on power and bit-error-rate while providing better PAPR reduction performance than most other methods.</p>http://asp.eurasipjournals.com/content/2011/1/38WiMAXOFDMPTSPAPR reductionphase optimizationsequential quadratic programing |
| spellingShingle | Svantesson Thomas Khademi Seyran Viberg Mats Eriksson Thomas Peak-to-Average-Power-Ratio (PAPR) reduction in WiMAX and OFDM/A systems EURASIP Journal on Advances in Signal Processing WiMAX OFDM PTS PAPR reduction phase optimization sequential quadratic programing |
| title | Peak-to-Average-Power-Ratio (PAPR) reduction in WiMAX and OFDM/A systems |
| title_full | Peak-to-Average-Power-Ratio (PAPR) reduction in WiMAX and OFDM/A systems |
| title_fullStr | Peak-to-Average-Power-Ratio (PAPR) reduction in WiMAX and OFDM/A systems |
| title_full_unstemmed | Peak-to-Average-Power-Ratio (PAPR) reduction in WiMAX and OFDM/A systems |
| title_short | Peak-to-Average-Power-Ratio (PAPR) reduction in WiMAX and OFDM/A systems |
| title_sort | peak to average power ratio papr reduction in wimax and ofdm a systems |
| topic | WiMAX OFDM PTS PAPR reduction phase optimization sequential quadratic programing |
| url | http://asp.eurasipjournals.com/content/2011/1/38 |
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