【作者】 陈琳； 胡学龙；

【Author】 Chen lin~1 Hu Xuelong~2 (1.Shanghai University of Electronic Power,Shanghai,200090 2.Information Engineering College of Yangzhou University,Yangzhou 225009)

【机构】 上海电力学院计算机与信息工程学院； 扬州大学信息工程学院；

【摘要】 作为第四代移动通信系统的核心技术,正交频分复用(OFDM)已成为当今高速无线通信领域的研究热点。但是 OFDM 调制中存在的高峰均功率比(PAPR),为其实用化设置了障碍。为了降低高 PAPR,本文对采用选择映射法和其改进算法进行了仿真研究,证明该算法可以有效降低 OFDM 系统的 PAPR。更多还原

【Abstract】 As a core technology of 4G mobile communication system,Orthogonal Frequency Division Multiplexing (OFDM) has recently been focused on in high-data-rate wireless communication research.The disadvantage of high Peak-to-Average Power Ratio (PAPR) in OFDM system is one of the main obstacles to limit wide applications of OFDM.In order to reduce the high PAPR,Selective Mapping (SLM) and the improved algorithm are introduced and simulated them with MATLAB.The results indicate that these algorithms are effective.更多还原