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標題: A PTS Technique With Non-Disjoint Sub-Block Partitions in M-QAM OFDM Systems
作者: Houshou Chen
Kuo-Chen Chung
關鍵字: Orthogonal frequency division multiplexing (OFDM);peak-to-average power ratio (PAPR);partial transmit sequence (PTS);QAM modulation
Project: IEEE Transactions on Broadcasting, Volume 64, Issue 1,
This paper presents a modified partial transmit sequence (PTS) algorithm for peak-to-average power ratio (PAPR) reduction of M-QAM orthogonal frequency division multiplexing (OFDM) signals by partitioning an OFDM block into non-disjoint OFDM sub-blocks. Since an M-QAM constellation can be written as sum of several QPSK constellations, we can then apply different disjoint partitions on the QPSK OFDM blocks, which result in an equivalent non-disjoint partition on the M-QAM OFDM block. Compared to a disjoint sub-block partition in conventional PTS, simulation results show that the modified PTS with a non-disjoint partition achieves better PAPR reduction in adjacent, interleaved, and random partitioning schemes.
DOI: 10.1109/TBC.2017.2722230
Appears in Collections:通訊工程研究所

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