期刊文献+
任意字段
题名或关键词
题名
关键词
文摘
作者
第一作者
机构
刊名
分类号
参考文献
作者简介
基金资助
栏目信息

Peak-to-average power ratio reduction using selective mapping with unequal power distribution

Peak-to-average power ratio reduction using selective mapping with unequal power distribution
下载PDF
导出
摘要 A new approach for peak-to-average power ratio (PAPR) reduction in orthogonal frequency division multiplexing (OFDM) systems was proposed.This approach is based on assigning powers to the different subcarriers of OFDM using an unequal power distribution strategy.In addition,a reduced complexity selective mapping (RC-SLM) scheme was proposed.The proposed scheme is based on partitioning the frequency domain symbol sequence into several sub-blocks,and then each sub-block is multiplied by different phase sequences whose length is shorter than that used in the conventional SLM scheme.Then,a kind of low complexity conversions is used to replace the IFFT blocks.The performance of the proposed RC-SLM scheme along with the new approach was studied with computer simulation.The obtained results show that the proposed RC-SLM scheme is able to achieve the lowest computational complexity when compared with other low complexity schemes proposed in the literature while at the same time improves the PAPR reduction performance by about 0.3 dB. A new approach for peak-to-average power ratio （PAPR） reduction in orthogonal frequency division multiplexing （OFDM） systems was proposed. This approach is based on assigning powers to the different subcarriers of OFDM using an unequal power distribution strategy. In addition, a reduced complexity selective mapping （RC-SLM） scheme was proposed. The proposed scheme is based on partitioning the frequency domain symbol sequence into several sub-blocks, and then each sub-block is multiplied by different phase sequences whose length is shorter than that used in the conventional SLM scheme. Then, a kind of low complexity conversions is used to replace the IFFT blocks. The performance of the proposed RC-SLM scheme along with the new approach was studied with computer simulation. The obtained results show that the proposed RC-SLM scheme is able to achieve the lowest computational complexity when compared with other low complexity schemes proposed in the literature while at the same time improves the PAPR reduction performance by about 0.3 dB.
作者 E.S.Hassan XU Zhu S.E.E1-Khamy M.I.Dessouky S.A.EI-Dolill F.E.Abd EI-Samie
机构地区 Department of Electronics and Electrical Communications Department of Electrical Engineering and Electronics Department of Electrical Engineering
出处 《Journal of Central South University》 SCIE EI CAS 2012年第7期1902-1908,共7页 中南大学学报（英文版）
关键词 选择性映射 分配策略 功率比 权力 正交频分复用 低复杂度 OFDM PAPR orthogonal frequency division multiplexing （OFDM） peak-to-average power ratio （PAPR） computational complexity selective mapping scheme
分类号 TN919.3 [电子电信—通信与信息系统]
  • 相关文献

参考文献17

  • 1NEE R V, PRASAD R. OFDM for wireless multimedia communications [M]. Artech House, 2000: 33-62.
  • 2SCHULZE H, LUDERS C. Theory and application of OFDM and CDMA wideband wireless communication [M]. John Wiley, 2005: 145-263.
  • 3HAN S, LEE J. An overview of peak-to-average power ratio reduction techniques for multicarrier transmission [J]. IEEE Trans on Wireless Commun, 2005, 12: 56-65.
  • 4SLIMANE S B. Reducing the peak-to-average power ratio of OFDM signals through precoding [J]. IEEE Trans on Veh Techn, 2007, 56: 686-695.
  • 5KOHANDAN[ F, KHANDANI A. A new algorithm for peak/average power reduction in OFDM systems [J]. IEEE Trans on Brodcasting, 2008, 54: 159-165.
  • 6HASSAN E S, EL-KHAMY S E, DESSOUKY M 1, EL-DOL1L S A, ABD EL-SAMIE F E. A simple selective mapping algorithm for the peak to average power ratio in space time block coded MIMO-OFDM systems [C]//Proc HPCNCS-08. Orlando, FL, USA, 2008: 103-106.
  • 7LEE Y, YOU Y, JEON W, PAIK J, SONG H. Peak-to-average power ratio in MIMOOFDM systems using selective mapping [J]. IEEE Comm Letters, 2003, 7: 575-577.
  • 8CHEN H, LIANG H. Combined selective mapping and binary cyclic codes for PAPR reduction in OFDM systems [J]. IEEE Trans on Wireless Comm, 2007, 6: 3524-3528.
  • 9HASSAN E S, EL-KHAMY S E, DESSOUKY M I, EL-DOLIL S A, ABD EL-SAMIE F E. Peak-to-average power ratio reduction in space-time block coded multi-input multi-output orthogonal frequency division multiplexing systems using a small overhead selective mapping scheme [J]. IET Comrnun, 2009, 3(10): 1667-1674.
  • 10YANG L, SOO K, SIU Y M, LI S Q. A low complexity selected mapping scheme by use of time domain sequence superposition technique for PAPR reduction in OFDM system [J]. IEEE Transactions on Broadcasting, 2008, 54(4): 821-824.
Journal of Central South University
2012年 第7期

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部