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应用科学学报 ›› 2002, Vol. 20 ›› Issue (4): 399-403.

• 论文 • 上一篇    下一篇

基于BCM降低OFDM系统PAPR的方法

宋铁成, 尤肖虎, 沈连丰   

  1. 东南大学移动通信国家重点实验室, 江苏南京 210096
  • 收稿日期:2001-07-13 修回日期:2002-03-05 出版日期:2002-12-31 发布日期:2002-12-31
  • 作者简介:宋铁成(1967-),男,江苏张家港人,副教授,博士生;尤肖虎(1962-),男,江苏南京人,教授,博导;沈连丰(1952-),男,江苏邳州人,教授,博导.
  • 基金资助:
    国家自然科学基金资助项目(60072016);教育部科学技术研究重点项目(99176)

A Method to Reduce the PAPR of the OFDM System Based on BCM

SONG Tie-cheng, YOU Xiao-hu, SHEN Lian-feng   

  1. National Mobile Communications Research Laboratory, Southeast University, Nanjing 210096, China
  • Received:2001-07-13 Revised:2002-03-05 Online:2002-12-31 Published:2002-12-31

PDF

75

被引次数

44

摘要： 简述了降低正交频分复用系统峰均功率比的研究进展,给出了基于分组编码调制降低峰均功率比的方法,提出了子载波数较大系统的搭建方法,分析了实现原理并进行了仿真研究,结果表明该方法不仅能有效降低正交频分复用系统的峰均功率比,而且具有前向纠错能力.

关键词: 分组编码调制, 峰均功率比, 正交频分复用

Abstract: The problem of the practical orthogonal frequency division multiplexing (OFDM) system is that the peak to the average power raito (PAPR) is very high. This paper briefly describes the progress researches on reducing the PAPR. The method to reduce the PAPR of the OFDM system based on block coding modulation (BCM) is presented and the construction of large sub carrier number systems is proposed. We have analyzed the implementation principle and carried out computer simulation. The results indicate that the BCM method not only can effectively lower the PAPR in the OFDM system, but also carry out forward error correction (FEC).

Key words: block coding modulation (BCM), orthogonal frequency division multiplexing (OFDM), peak to average power ratio (PAPR)

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