| WANG Xing (王星)*,MA Tianming*,LI Fengrong**,ZHAO Qinghua*.[J].高技术通讯(英文),2022,28(2):208~216 |
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| A correlation OPTS algorithm for reducing peak to average power ratio of FBMC-OQAM systems |
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| DOI：10.3772/j.issn.1006-6748.2022.02.011 |
| 中文关键词: |
| 英文关键词: filter bank multicarrier (FBMC), offset quadrature amplitude modulation (OQAM), peak to average power ratio (PAPR), overlapping partial transmit sequence (OPTS), correlation coefficient |
| 基金项目: |
| Author Name | Affiliation | | WANG Xing (王星)* | (*School of Electrical and Electronic Engineering, Shanghai University of Engineering Science, Shanghai 201620, P.R.China)
(**Laboratory of Broadband Wireless Technology, Shanghai Institute of Microsystem and Information Technology,Chinese Academy of Sciences, Shanghai 200050, P.R.China) | | MA Tianming* | (*School of Electrical and Electronic Engineering, Shanghai University of Engineering Science, Shanghai 201620, P.R.China)
(**Laboratory of Broadband Wireless Technology, Shanghai Institute of Microsystem and Information Technology,Chinese Academy of Sciences, Shanghai 200050, P.R.China) | | LI Fengrong** | (*School of Electrical and Electronic Engineering, Shanghai University of Engineering Science, Shanghai 201620, P.R.China)
(**Laboratory of Broadband Wireless Technology, Shanghai Institute of Microsystem and Information Technology,Chinese Academy of Sciences, Shanghai 200050, P.R.China) | | ZHAO Qinghua* | (*School of Electrical and Electronic Engineering, Shanghai University of Engineering Science, Shanghai 201620, P.R.China)
(**Laboratory of Broadband Wireless Technology, Shanghai Institute of Microsystem and Information Technology,Chinese Academy of Sciences, Shanghai 200050, P.R.China) |
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| 中文摘要: |
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| 英文摘要: |
| A correlation overlapping partial transmit sequence (C-OPTS) algorithm is proposed to solve the issue of high complexity of overlapping partial transmit sequence (OPTS) algorithm in suppressing the peak to average power ratio (PAPR) of filter bank multicarrier-offset quadrature amplitude modulation (FBMC-OQAM) signals. The V subblocks in partial transmit sequence (PTS) are regrouped into U combinations according to the correlation coefficient ρ, and overlapping subblocks are allowed between adjacent groups. The search starts from the first group and sets the phase factors of the subsequent groups to 1. When the phase factors of the non-overlapping subblocks in the first group are determined, the subsequent groups are searched in turn to determine their respective phase factors. Starting from the second data block, the data overlapped with it should be taken into account when determining its optimal phase factor vector. Theoretical analysis and simulation results indicate that compared with the OPTS algorithm, the proposed algorithm can significantly reduce the computational complexity at the cost of slight deterioration of PAPR performance. Meanwhile, compared with the even-odd iterative double-layers OPTS (ID-OPTS) algorithm, it can further reduce the complexity and obtain a better PAPR suppression effect. |
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