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基于频谱优化和交织的OFDM-PAPR降低算法

PAPR reduction algorithm for OFDM system based on frequency optimization and interleaver
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摘要 为了降低OFDM系统的PAPR,针对传统算法有损系统性能的缺点,提出了一种优化的算法。该算法基于频谱优化和交织思想,通过确定有效子载波个数来提高OFDM符号的平均功率和系统的频谱效率,并通过预判断,选择性地对OFDM符号进行交织处理。仿真结果表明,该算法在降低OFDM的PAPR的同时,也优化了系统的性能。 Concerning that the main drawback of traditional algorithm, an optimization algorithm was given to reduction PAPR in OFDM system. The algorithm heightened average power and frequency efficiency by computed optimization sub-band number. From the prejudgement, the algorithm disposed OFDM signs by interleaver selectively. Simulation results show that the algorithm can reduce the PAPR and improve capability of OFDM system.
作者 贾科进 杜太行 张效玮
机构地区 河北工业大学信息工程学院 石家庄市发展和改革委员会
出处 《电子技术应用》 北大核心 2012年第8期99-102,共4页 Application of Electronic Technique
基金 河北省自然科学基金项目(08B004)
关键词 正交频分复用 峰均功率比 频谱效率 交织 OFDM peak-to-average power ratio frequency efficiency interleaver
分类号 TN927.2 [电子电信—通信与信息系统]
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参考文献8

  • 1YANG L, CHEN R S, SIU Y M, et al.PAPR reduction of an OFDM sig- nal by use of PTS with low computa- tional complexity [J]. IEEE Transac-tions on Broadcasting, 2006,52(1): 83- 86.
  • 2杨刚.OFDM通信系统中的PAPR-支技术的研究[D].西安:西安电子科技大学,2005.
  • 3王灵垠,曹叶文.降低OFDM系统峰均功率比的低计算复杂度PTS方法[J].通信学报,2009,30(10):51-57. 被引量：13
  • 4ARM S J.Peak 2to2 average power reduction for OFDM by repeated clipping and frequency domain filtering[J]. Elect- ronics letters, 2002,38(5):246-247.
  • 5CHEN H S, LIANG H Y. Combined selective mapping and binary cyclic codes for PAPR reduction in OFDM sys- tems[J]. IEEE Transactions on Wireless Communications, 2007,6 ( 1 0): 3524- 3528.
  • 6LIM D W, HEO S J, NO J S. A new PTS OFDM scheme with low complexity for PAPR reduction[J]. IEEE Transa- ctions on Broadcasting, 2006,52(1):77-82.
  • 7WANG L, CAO Y. Sub-optimum PTS for PAPR reduction of OFDM signals[J]. Electronics Letters, 2008,44(15):921- 922.
  • 8YANG L, CHEN R S, SIU Y M. PAPR reduction of an OFDM signal by use of PTS with low computational com- plexity [J]. IEEE Transactions on Broadcasting, 2006,52 (1): 83-86.

二级参考文献15

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  • 10LEE B M, DEFIGUEIREDO R J P. A low complexity tree algorithm for PTS-based PAPR reduction in wireless OFDM[A]. Processings of ICASSP'06[C]. Toulouse, France, 2006. Ⅳ301-Ⅳ304.

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电子技术应用
2012年 第8期

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