Reduction of PAPR of OFDM Symbols Using Modified Narahashi and Nojima Phasing Sequences
Vallavaraj Athinarayanan 1 and
Brian G Stewart 2
1. Caledonian College of Engineering, Muscat, Oman
2. Glasgow Caledonian University, Glasgow, United Kingdom
2. Glasgow Caledonian University, Glasgow, United Kingdom
Abstract—This paper discusses the limitation of the phasing technique proposed by Narahashi and Nojima for reducing the PAPR of OFDM symbols. It is shown that although the phasing sequence proposed by Narahashi and Nojima works well for constant amplitude and constant phase angle signals, the technique does not work for inputs with varying phase angles, for example, QPSK. To improve this situation a modified phasing sequence is proposed and numerical results show a very good reduction in PAPR for input symbols with both constant and varying phase angles.
Index Terms—OFDM, peak-to-average power ratio, phasing schemes
Cite: Vallavaraj Athinarayanan and Brian G Stewart, "Reduction of PAPR of OFDM Symbols Using Modified Narahashi and Nojima Phasing Sequences," International Journal of Electronics and Electrical Engineering, Vol. 3, No. 1, pp. 80-83, February 2015. doi: 10.12720/ijeee.3.1.80-83
Index Terms—OFDM, peak-to-average power ratio, phasing schemes
Cite: Vallavaraj Athinarayanan and Brian G Stewart, "Reduction of PAPR of OFDM Symbols Using Modified Narahashi and Nojima Phasing Sequences," International Journal of Electronics and Electrical Engineering, Vol. 3, No. 1, pp. 80-83, February 2015. doi: 10.12720/ijeee.3.1.80-83
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