Abstract
Just like orthogonal frequency division multiplexing (OFDM) systems, the large peak-to-average power ratio (PAPR) as one of the main shortcomings still exists in multi-input multi-output (MIMO) OFDM systems. Interleaving scheme is one of the attractive technologies for PAPR reduction and it can be directly used for each transmit antenna in MIMO-OFDM systems, called as ordinary interleaving scheme. In this paper, an improved interleaving scheme for PAPR reduction in MIMO-OFDM systems is proposed. Different from ordinary interleaving scheme, which transmit antenna is selected to perform the interleaving in proposed interleaving scheme is dominated by PAPR values of OFDM candidate sequences. Namely, the proposed interleaving scheme reorders the sequence from the antenna with the highest PAPR in the successive step after the PAPR of the original OFDM sequences are calculated. As a result, the proposed interleaving scheme can obtain better PAPR reduction performance compared with ordinary interleaving scheme.
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This work was supported by the National Natural Science Foundation of China (No. 61501204).
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Wang, L., Jiang, X. (2018). Improved Interleaving Scheme for PAPR Reduction in MIMO-OFDM Systems. In: Huang, DS., Gromiha, M., Han, K., Hussain, A. (eds) Intelligent Computing Methodologies. ICIC 2018. Lecture Notes in Computer Science(), vol 10956. Springer, Cham. https://doi.org/10.1007/978-3-319-95957-3_62
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DOI: https://doi.org/10.1007/978-3-319-95957-3_62
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