通过一种新的组合脉冲整形方案减少SC-FDMA的纸张

Naser Ahmadi Moghaddam, A. Sharafat
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引用次数: 3

摘要

峰值平均功率比(PAPR)是下一代无线网络中影响终端用户设备成本的一个重要参数。当PAPR很高时,终端用户功率放大器的动态范围也应该很高,导致功率放大器价格昂贵。LTE-Advanced采用单载波频分多址(SC-FDMA)作为空口,针对SC-FDMA的交错频分多址(IFDMA)子载波映射,提出了一种新颖高效的脉冲整形降低PAPR的技术。通过仿真,我们表明,与QPSK调制的提高余弦(RC)脉冲整形相比,我们的新脉冲整形可以降低2.11 dB的PAPR。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Papr reduction in SC-FDMA via a novel combined pulse-shaping scheme
Peak-to-average-power-ratio (PAPR) is an important parameter that affects the cost of end-user devices in next generation wireless networks. When PAPR is high, the end-user power amplifier's dynamic range should also be high, resulting in costly power amplifiers. Single-carrier frequency-division-multiple-access (SC-FDMA) is used as the air-interface in LTE-Advanced, and this paper proposes a novel and efficient technique for PAPR reduction via pulse shaping for interleaved-FDMA (IFDMA) subcarrier mapping in SC-FDMA. By way of simulations, we show that PAPR can be reduced by 2.11 dB for our novel pulse shaping compared to raised cosine (RC) pulse shaping with QPSK modulation.
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