作者
Hocine Ait-Saadi, Jean-Yves Chouinard, Abderrezak Guessoum
发表日期
2012/7/2
研讨会论文
2012 11th International Conference on Information Science, Signal Processing and their Applications (ISSPA)
页码范围
567-572
出版商
IEEE
简介
Orthogonal frequency division multiplexing (OFDM) is a very powerful multicarrier scheme to mitigate frequency selective fading in wireless channels. However OFDM is affected by high peak to average power ratio (PAPR) conditions. A signal with high PAPR causes severe transmission problems due to the non linearity of high power amplifier (HPA) used at the transmitter end. One of the most promising methods proposed to reduce the PAPR consists of acting on the rotation phases of the OFDM symbols: this is known as the partial transmit sequence (PTS) method. Although this method achieves significant PAPR reduction, it requires an exhaustive search thus has a high computational complexity. To reduce this complexity, we propose in this paper a suboptimal algorithm based on distributed differential evolution algorithm (DDE) with self adaptation of the control parameters. The performance in PAPR reduction …
引用总数
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学术搜索中的文章
HA Saadi, JY Chouinard, A Guessoum - 2012 11th International Conference on Information …, 2012