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降低GFDM峰均功率比的低复杂度算法.pdf


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研究与开发
降低 GFDM 峰均功率比的低复杂度算法
r transform to reduce the complexity of the system. To
further reduce the PAPR of the GFDM system, the TCSLM algorithm combining the TSLM algorithm and the conver-
sion vector (CV) was proposed, and the CV vector was used to increase the number of GFDM time-domain alternative
signals. The results show that when the number of subcarriers is 64, the number of sub symbols is 3 and the number of
phase sequences is 2, compared with the SLM algorithm, the implementation complexity of the TSLM and TCSLM al-
gorithm decreases by about 21.9% and 60.9%, respectively. When the complementary cumulative distribution function
(CCDF) is 10−3, the PAPR of the TSLM and TCSLM algorithm decreases by about 0.6 dB and 1 dB, respectively. The
error performance of the TSLM and the TCSLM algorithm is improved by about 2 dB when the bit error rate is 10−3.
Key words: generalized frequency division multiplexing, peak to average power ratio, selective mapping, conversion
vector, bit error rate
收稿日期:2020−07−15;修回日期:2020−11−24
通信作者:李光球,******@hdu.edu.cn


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