A Novel ZCT-R-OFDM Based PAPR Reduction Technique with RRC
This proposed algorithm combines the selected mapping exchange of various partial transmit sequences(PTS) sub blocks to create more alternative OFDM signal sequences ,to provide optimum PAPR(Peak to average power ratio) reduction performance with lower complexity. In this algorithm we are dealing di...
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| Format: | Article |
| Language: | English |
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UT Press Publishing House
2016-07-01
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| Series: | Carpathian Journal of Electronic and Computer Engineering |
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| Online Access: | http://cjece.ubm.ro/vol/9-2016/1601.02-9104.pdf |
| Summary: | This proposed algorithm combines the selected mapping exchange of various partial transmit sequences(PTS) sub blocks to create more alternative OFDM signal sequences ,to provide optimum PAPR(Peak to average power ratio) reduction performance with lower complexity. In this algorithm we are dealing different reduction techniques like SLM with IFFT, ZCT and other clipping methods to reduce PAPR in OFDM system. Apart from the other clipping techniques ZCT (Zadoff-chu matrix Transform) plays vital role in this algorithm. The Zadoff-chu sequences by filling ZCT kernel row wise or column wise. Row wise filling gives rise to constant envelope OFDM (CE-OFDM) system with 0dB PAPR. Similarly column wise gives rise to 7.8dB at a clip rate of 10-3 with system subcarriers N=64 for QPSK modulation. The simulations results are observed in the Mat-lab for different clipping techniques. |
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| ISSN: | 1844-9689 2343-8908 |