A peak to average power ratio reduction of multicarrier CDMA using selected mapping
A peak to average power ratio reduction of multicarrier CDMA using selected mapping
复制标题
使用选定映射降低多载波 CDMA 的峰均功率比
DOI：
10.1109/vetecf.2002.1040586
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发表时间：
2002
期刊：
影响因子：
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通讯作者：
Tomoaki Ohtsuki
中科院分区：
文献类型：
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作者：
N. Ohkubo;Tomoaki Ohtsuki
MC-CDMA是一种非常有前途的移动通信高比特率和高容量传输技术。多载波调制的缺点之一是峰均功率比 (PAPR) 较高，这会导致高功率放大器 (HPA) 出现非线性失真并导致 BER 下降。已经针对 OFDM 提出了各种降低 PAPR 的方法。众所周知，部分发射序列(PTS)和选择映射(SLM)对于OFDM是有效的。 PTS 已应用于 MC-CDMA，并且表明它对于降低 MC-CDMA 中的 PAPR 也很有效。然而，SLM 对 MC-CDMA 的影响尚未明确。我们研究了 SLM 对 MC-CDMA 的影响。我们还研究了适合降低 MC-CDMA 中 PAPR 的 SLM 中的相位序列。我们证明，在辅助信息量相同的情况下，SLM 比 PTS 更有效。
MC-CDMA is a very promising technique for high-bit-rate and high capacity transmission in mobile communications. One disadvantage of multicarrier modulation is the high peak-to-average power ratio (PAPR) that results in nonlinear distortion at a high power amplifier (HPA) and the degradation of BER. Various methods for reducing PAPR have been proposed for OFDM. It is known that the partial transmit sequence (PTS) and the selected mapping (SLM) are effective for OFDM. The PTS has been applied to MC-CDMA and shown that it is effective for reducing the PAPR in MC-CDMA as well. However, the effects of SLM for MC-CDMA have not been clarified. We investigate the effects of SLM for MC-CDMA. We also investigate phase sequences in the SLM that is suitable for reducing the PAPR in MC-CDMA. We show that the SLM is more effective than the PTS at the same amount of side information.
DOI：
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发表时间：
1999-12
期刊：
--
影响因子：
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作者：
R. V. Nee;R. Prasad
通讯作者：
R. V. Nee;R. Prasad