A CCM-Based OFDM System with Low PAPR for Sparse Source
Orthogonal frequency division multiplexing (OFDM) usually suffers high peak-to-average power ratio (PAPR). As shown in this paper, PAPR becomes even severe for sparse source due to many identical nonzero frequency OFDM symbols. Thus, this paper introduces compressive coded modulation (CCM) in order...
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| Veröffentlicht in: | Wireless communications and mobile computing 2018-01, Vol.2018 (2018), p.1-7 |
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| creator | Yang, Qinbiao Huang, Qin Wang, Zulin |
| description | Orthogonal frequency division multiplexing (OFDM) usually suffers high peak-to-average power ratio (PAPR). As shown in this paper, PAPR becomes even severe for sparse source due to many identical nonzero frequency OFDM symbols. Thus, this paper introduces compressive coded modulation (CCM) in order to restrain PAPR by reducing identical nonzero frequency symbols for sparse source. As a result, the proposed CCM-based OFDM system, together with iterative clipping and filtering, can efficiently restrain the high PAPR for sparse source. Simulation results show that it outperforms about 4 dB over the traditional OFDM system when source sparsity is 0.1. |
| doi_str_mv | 10.1155/2018/8923478 |
| format | Article |
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As shown in this paper, PAPR becomes even severe for sparse source due to many identical nonzero frequency OFDM symbols. Thus, this paper introduces compressive coded modulation (CCM) in order to restrain PAPR by reducing identical nonzero frequency symbols for sparse source. As a result, the proposed CCM-based OFDM system, together with iterative clipping and filtering, can efficiently restrain the high PAPR for sparse source. Simulation results show that it outperforms about 4 dB over the traditional OFDM system when source sparsity is 0.1.</description><identifier>ISSN: 1530-8669</identifier><identifier>EISSN: 1530-8677</identifier><identifier>DOI: 10.1155/2018/8923478</identifier><language>eng</language><publisher>Cairo, Egypt: Hindawi Publishing Corporation</publisher><subject>Algorithms ; Orthogonal Frequency Division Multiplexing ; Random variables ; Sparsity ; Symbols</subject><ispartof>Wireless communications and mobile computing, 2018-01, Vol.2018 (2018), p.1-7</ispartof><rights>Copyright © 2018 Qinbiao Yang et al.</rights><rights>Copyright © 2018 Qinbiao Yang et al. This work is licensed under http://creativecommons.org/licenses/by/4.0/ (the “License”). 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| ispartof | Wireless communications and mobile computing, 2018-01, Vol.2018 (2018), p.1-7 |
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| language | eng |
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| source | Wiley-Blackwell Open Access Titles; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; Alma/SFX Local Collection |
| subjects | Algorithms Orthogonal Frequency Division Multiplexing Random variables Sparsity Symbols |
| title | A CCM-Based OFDM System with Low PAPR for Sparse Source |
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