Peak-To-Average Power Ratio of Single Carrier FDMA Signals with Pulse Shaping
Peak-To-Average Power Ratio of Single Carrier FDMA Signals with Pulse Shaping
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DOI：
10.1109/pimrc.2006.254407
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发表时间：
2006-12
期刊：
影响因子：
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通讯作者：
H. Myung;Junsung Lim;D. Goodman
中科院分区：
文献类型：
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作者：
H. Myung;Junsung Lim;D. Goodman
利用单载波调制和频域均衡的单载波频分多址（SC-FDMA）是具有与OFDM相似的性能和基本上相同的总体复杂度的技术，其中高峰均功率比（PAPR）是主要缺点。SC-FDMA的突出优点是由于其单载波结构而具有较低的PAPR。本文分析了具有脉冲成形的SC-FDMA信号的峰均比。我们解析地推导了时域SC-FDMA信号，并使用PAPR的互补累积分布函数（CCDF）数值地比较PAPR特性。结果表明，与OFDMA相比，SC-FDMA信号确实具有更低的PAPR。比较两种形式的SC-FDMA，我们发现，集中式FDMA（LFDMA）具有比交织式FDMA（IFDMA）更高的PAPR，但比OFDMA稍低的PAPR。同样值得注意的是，脉冲整形增加了PAPR
Single carrier frequency division multiple access (SC-FDMA), which utilizes single carrier modulation and frequency domain equalization is a technique that has similar performance and essentially the same overall complexity as those of OFDM, in which high peak-to-average power ratio (PAPR) is a major drawback. An outstanding advantage of SC-FDMA is its lower PAPR due to its single carrier structure. In this paper, we analyze the PAPR of SC-FDMA signals with pulse shaping. We analytically derive the time domain SC-FDMA signals and numerically compare PAPR characteristics using the complementary cumulative distribution function (CCDF) of PAPR. The results show that SC-FDMA signals indeed have lower PAPR compared to those of OFDMA. Comparing the two forms of SC-FDMA, we find that localized FDMA (LFDMA) has higher PAPR than interleaved FDMA (IFDMA) but somewhat lower PAPR than OFDMA. Also noticeable is the fact that pulse shaping increases PAPR