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OFDM-CDMA with Low PAPR Using Cyclic-Shifted Sequence Mapping
Young-Hwan YOU Won-Gi JEON Jeong-Wook SEO Byoung-Chul SONG Hyeok-Koo JUNG
IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2003/12/01
Print ISSN: 0916-8508
Type of Manuscript: LETTER
Category: Communication Theory and Signals
OFDM-CDMA, peak-to-average power ratio (PAR), cyclic-shifted sequences, selective mapping,
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In this letter, a simple peak-to-average power ratio (PAPR) reduction scheme by using a cyclic-shifted sequence mapping is addressed in OFDM-CDMA systems. The PAPR reduction approach is very simple because of no additional complexity and no side information. Also, this simple approach can be easily combined with a modified selective mapping (SLM) approach, which outperforms the original SLM approach at the expense of one additional side information, guaranteeing approximately same transmitter complexity.