一种降低FBMC-OQAM系统PAPR的算法

doi:10.11896/j.issn.1002-137X.2018.06.015

计算机科学 ›› 2018, Vol. 45 ›› Issue (6): 89-95.doi: 10.11896/j.issn.1002-137X.2018.06.015

一种降低FBMC-OQAM系统PAPR的算法

吴建霞, 杨永立

武汉科技大学信息科学与工程学院武汉430081

收稿日期:2017-03-30 出版日期:2018-06-15 发布日期:2018-07-24
作者简介:吴建霞(1989-),女,硕士生,主要研究方向为无线通信,E-mail:1169474032@qq.com;杨永立(1971-),男,教授,主要研究方向为无线通信、网络化自动控制理论和应用等,E-mail:553116411@qq.com(通信作者)

Algorithm for Reducing PAPR of FBMC-OQAM System

WU Jian-xia, YANG Yong-li

School of Information Science and Engineering,Wuhan University of Science and Technology,Wuhan 430081,China

Received:2017-03-30 Online:2018-06-15 Published:2018-07-24

摘要/Abstract

摘要： 滤波器组多载波(Filter Bank Multi-Carrier,FBMC)与偏移正交振幅调制(Offset Quadrature Amplitude Modulation,OQAM)相结合的FBMC-OQAM技术在无线通信系统中具有频谱效率高和无需同步等特点。然而,FBMC-OQAM系统较高的峰均功率比(Peak-to-Average Power Ratio,PAPR)容易导致信号失真、频谱扩展、系统性能下降。鉴于此,文中提出一种载波预留(Tone Reservation,TR)和μ-律压扩联合的新方法(TR-μLaw)来降低FBMC-OQAM系统的PAPR。TR方法具有无失真特性,而μ-律压扩法虽然给FBMC-OQAM系统带来了一定失真,但是能显著降低PAPR。TR-μLaw方法将二者结合,实现了两种方法的利弊互补。仿真结果表明,TR-μLaw方法在降低PAPR方面的性能优于μ-律压扩法和TR方法,在μ=3和Iterations=8时TR-μLaw方法的PAPR较后两者分别降低约1.0 dB和3.4 dB,且BER性能优于μ-律压扩法。

关键词: 非线性压扩变换, 峰均功率比, 基于滤波器组的多载波通信系统, 联合法, 载波预留

Abstract: FBMC-OQAM technique combining filter bank multi-carrier (FBMC) and offset quadrature amplitude modulation (OQAM) shows the characteristics such as high spectrum efficiency and without synchronization in wireless communication system.However,the higher peak-to-average power ratio (PAPR) in FBMC-OQAM systems can easily lead to signal distortion,spectrum extension and system performance degradation.Therefore,this paper proposed a method toreduce the PAPR by applying a new expansion hybrid method for FBMC-OQAM systems.The new method called TR-μLaw combines Tone Reservation (TR) and μ-law companding scheme.The TR method has no distortion characteristic and the μ-law companding method causes the distortion to FBMC-OQAM system,but it has obvious effects of reducing PAPR.Therefore,TR-uLaw hybrid method realizes the complementary advantages of the two me-thods.The simulation results show that the performance of reducing PAPR is better than that of both μ-law and TR methods which reduce about 1.0dB and 3.4dB at μ=3 and Iterations=8,respectively,and the BER performance of the TR-μLaw method is better than that of μ-law method.

Key words: FBMC-OQAM, Hybrid method, Nonlinear compressing and expanding transform, Peak-to-average power ratio, Tone reservation

中图分类号:

TN929.5

吴建霞, 杨永立. 一种降低FBMC-OQAM系统PAPR的算法[J]. 计算机科学, 2018, 45(6): 89-95. https://doi.org/10.11896/j.issn.1002-137X.2018.06.015

WU Jian-xia, YANG Yong-li. Algorithm for Reducing PAPR of FBMC-OQAM System[J]. Computer Science, 2018, 45(6): 89-95. https://doi.org/10.11896/j.issn.1002-137X.2018.06.015

参考文献

[1]MICHAILOW N,GASPAR I,KRONE S,et al.Generalized frequency division multiplexing:Analysis of an alternative multicarrier technique for next generation cellular systems[C]//Proceedings of International Symposium.Paris:Wireless Communication Systems,2012:171-175.
[2]YOU X H,PAN Z W,GAO X Q,et al.Development trend and some key technologies of 5G mobile communication[J].Information Science,2014,44(5):551-563.(in Chinese)
尤肖虎,潘志文,高西奇,等.5G移动通信发展趋势与若干关键技术[J].中国科学:信息科学,2014,44(5):551-563.
[3]WUNDER G,KASPARICK M,TEN BRINK S T,et al.5G NOW:Challenging the LTE Design Paradigms of Orthogonality and Synchronicity[J].Open Access Journal,2012,14(6):1-5.
[4]IHALAINEN T,STITZ T H,RINNE M,et al.Channel Equalization in Filter Bank Based Multicarrier Modulation for Wireless Communications[J].EURASIP Journal on Advances in Signal Processing,2007,2007(1):1-18.
[5]ZHANG H C,LEI Y K.Blind Estimation Method for OFDM Parameter Based on Symbol Kurtosis[J].Computer Science,2017,44(4):207-212.(in Chinese)
张海川,雷迎科.基于符号峰态的OFDM信号参数盲估计方法[J].计算机科学,2017,44(4):207-212.
[6]MISHMY T S,SHEEBA V S.Peak to Average Power Ratio Reduction in Filter Bank Based Multicarrier System[C]//Third International Conference on Advances.Beijing:Computing & Communications,2013:377-381.
[7]QU D,LU S,JIANG T.Multi-Block Joint Optimization for the Peak-to-Average Power Ratio Reduction of FBMC-OQAM Signals[J].IEEE Transactions on Signal Processing,2013,61(7):1605-1613.
[8]LU S,QU D,HE Y.Sliding Window Tone Reservation Technique for the Peak-to-Average Power Ratio Reduction of FBMC-OQAM Signals[J].IEEE Wireless Communication Letters,2012,1(4):268-271.
[9]WANG Q,HUANG J J,WU L.A pre-coding algorithm for reducing the PAPR of FBMC-OQAM[J].Microcomputer & Its Applications,2017,36(3):67-70.(in Chinese)
王琼,黄静静,吴垒.一种降低FBMC-OQAM系统PAPR的预编码算法[J].微型机与应用,2017,36(3):67-70.
[10]WU L,XIE X Z,ZHANG M,et al.A Low Complexity PTS Algorithm with Dual Layered Phase Sequencing to Reduce PAPR of the FBMC-OQAM Signal[J].Science Technology and Engineering,2016,16(17):62-70.(in Chinese)
吴垒,谢显中,张苗,等.一种低复杂度降低FBMC-OQAM峰均值比的PTS双层搜索算法[J].科学技术与工程,2016,16(17):62-70.
[11]KRISHNA C B S S,SHAIEK H,ROVIRAS D,et al.Reduction of PAPR for FBMC-OQAM systems using dispersive SLM technique[C]//Proceedings of International Symposium.Barcelona:Wireless Communications Systems,2014:568-572.
[12]LIANG Y,QIN M Y,ZHANG H W,et al.Survey of pilot-aided channel estimation in FBMC/OQAM[J].Journal of Chongqing University of Posts and Telecommunications (Natural Science Edition),2015,27(4):477-483.(in Chinese)
梁燕,秦梦瑶,张贺伟,等.FBMC/OQAM系统导频辅助信道估计方法概述[J].重庆邮电大学学报(自然科学版),2015,27(4):477-483.
[13]ZHAO J C,HUANG F Y,KONG F S.Wireless Broadband Multicarrier Transmission Techniques Oriented to 5G[J].Mobile Communications,2015,39(9):14-18.(in Chinese)
赵锦程,黄斐一,孔繁盛.面向5G的无线宽带多载波传输技术[J].移动通信,2015,39(9):14-18.
[14]ZHOU Y,PALANKI R,MONTOJO J,et al.Peak-to-average ratio reduction scheme for multi-carrier systems with block-based channel estimation[J].Electronics Letters,2009,45(5):275-276.
[15]VARGHESE N,CHUNKATH J,SHEEBA V S.Peak-to-Average Power Ratio Reduction in FBMC-OQAM System[C]//Fourth International Conference on Advances.Tunisia:Computing & Communications,2014:286-290.
[16]LU S X.Non-signal Distortion Methods for the PAPR Reduction of the FBMC-OQAM Signals[D].Wuhan:Huazhong University of Science and Technology,2013.(in Chinese)
芦世先.降低FBMC-OQAM信号峰均功率比的无失真方法[D].武汉:华中科技大学,2013.
[17]BULUSU S S K C,SHAIEK H,ROVIRAS D.Reduction of PAPR of FBMC-OQAM systems by dispersive tone reservation technique[C]//International Symposium on Wireless Communication Systems.2015:561-565.

Metrics

Viewed

Full text

Abstract

Cited

Shared

Discussed

一种降低FBMC-OQAM系统PAPR的算法

Algorithm for Reducing PAPR of FBMC-OQAM System

PDF (PC)

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 1

Metrics

本文评价

推荐阅读 0