PAPR control of OFDM signals using spinal codes

PAPR control of OFDM signals using spinal codes
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发表时间：
2016-10
期刊：
2016 International Symposium on Information Theory and Its Applications (ISITA)
影响因子：
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通讯作者：
H. Tashiro;Yu Morishima;I. Oka;S. Ata
H. Tashiro;Yu Morishima;I. Oka;S. Ata
中科院分区：
其他
文献类型：
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作者：
H. Tashiro;Yu Morishima;I. Oka;S. Ata

文献摘要

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由于子载波信号的叠加，正交频分复用(Ofdm)比单载波调制产生更高的峰均功率比(PAPR)。高PAPR会导致高功率放大器输出的OFDM码信号的幅度失真。失真降低了传输效率和误码率。本文将脊码引入到OFDMPAPR控制系统中。在该系统中，PAPR可以通过部分传输序列(PTS)和脊码两个步骤来降低。PTS通过多簇的相位旋转来降低PAPR，而脊码可以通过删截超过阈值的高峰均比符号来控制。
Orthogonal Frequency Division Multiplexing (OFDM) produces higher peak-to-average power ratio (PAPR) than single carrier modulation because of the superposition of subcarrier signals. The high PAPR causes the amplitude distortion on OFDM signals of the output at high power amplifier. The distortion degrades the transmission efficiency and bit error rate. In this paper, spinal codes are introduced for PAPR control system of OFDM. In this system, PAPR can be reduced by two steps of partial transmit sequence (PTS) and spinal codes. PTS reduces PAPR by phase rotation of multiple clusters and spinal codes can control by puncturing high PAPR symbols which exceed the threshold.