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移动OFDM系统中的ICI消除算法研究

席晓平 张灿

席晓平, 张灿. 移动OFDM系统中的ICI消除算法研究[J]. 电子与信息学报, 2009, 31(3): 653-656. doi: 10.3724/SP.J.1146.2007.01862
引用本文: 席晓平, 张灿. 移动OFDM系统中的ICI消除算法研究[J]. 电子与信息学报, 2009, 31(3): 653-656. doi: 10.3724/SP.J.1146.2007.01862
Xi Xiao-ping, Zhang Can. Study on ICI Cancellation Algorithms for Mobile OFDM Systems[J]. Journal of Electronics & Information Technology, 2009, 31(3): 653-656. doi: 10.3724/SP.J.1146.2007.01862
Citation: Xi Xiao-ping, Zhang Can. Study on ICI Cancellation Algorithms for Mobile OFDM Systems[J]. Journal of Electronics & Information Technology, 2009, 31(3): 653-656. doi: 10.3724/SP.J.1146.2007.01862

移动OFDM系统中的ICI消除算法研究

doi: 10.3724/SP.J.1146.2007.01862
基金项目: 

国家自然科学基金(60573112)资助课题

Study on ICI Cancellation Algorithms for Mobile OFDM Systems

  • 摘要: 在宽带OFDM系统中,高速移动引起的多普勒效应导致载波间干扰(InterCarrier Interference, ICI)。该文在充分利用ICI分布特性的基础上,使用部分信道信息推导出两种新的低复杂度MMSE和DFE均衡算法。分析及仿真表明,新算法能够灵活可控地实现接收机性能与复杂度的有效折衷。在计算开销近似相同的条件下,提出的DFE均衡方案有效消除了传统接收机差错性能的地板效应(error floor),从而获得了性能改善。
  • Li Y and Stuber G. Orthogonal Frequency DivisionMultiplexing for Wireless Communications. New York:Springer Press, 2006: 8-28.[2]ETS 300 744-1999. Digital Video Broadcasting (DVB):Framing structure, channel coding and modulation for digitalterrestrial television, 1999.[3]802.16e. Draft 12: Local and metropolitan area networks-part16, air interface for fix broadband wireless access systems.IEEE 802.16 TGE Working Document, 2005.[4]Choi Y S, Voltz P J, and Cassara F A. On channel estimationand detection for multicarrier signals in fast and selectiveRayleigh fading channels[J].IEEE Trans. on Commun.2001,49(8):1375-1387[5]Cai X and Giannakis G B. Bounding performance andsuppressing intercarrier interference in wireless mobileOFDM[J].IEEE Trans. on Commun.2003, 51(12):2047-2056[6]Schniter P. Low-complexity equalization of OFDM in doublyselective channels. IEEE Trans. on Commun., 2004, 52(4):1002-1011.[7]Stamoulis A, Diffaci S N, and Al-Dhahir N. Intercarrierinterference in MIMO OFDM[J].IEEE Trans. on SignalProcessing.2002, 50(10):2451-2464[8]Jeon W G, Chang K H, and Cho Y S. An equalizationtechnique for orthogonal frequency division multiplexingsystems in time variant multipath channels[J].IEEE Trans. onCommun.1999, 47(1):27-32[9]Rugini L, Banelli P, and Lenus G. Low-complexity bandedequalizers for OFDM systems in Doppler spread channels.EURASIP Journal on Applied Signal Process, 2006, (1):1-13.[10]Barhumi I, Leus G, and Moonen M. Equalization for OFDMover doubly selective channels[J].IEEE Trans. on SignalProcessing.2006, 54(4):1445-1457[11]Bello P A. Characterization of randomly time-variant linearchannels. IEEE Trans. on Commun., 1963, COM-11(4):360-393.[12]Ma X and Giannakis G B. Maximum diversity transmissionsover doubly selective wireless channels[J].IEEE Trans. on Info.Theory.2003, 49(7):1832-1840[13]Zheng Y R and Xiao C. Simulation models with correctstatistical properties for Rayleigh fading channels. IEEETrans. on Commun., 2003, 51(6): 920-928.
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出版历程
  • 收稿日期:  2007-12-03
  • 修回日期:  2008-06-13
  • 刊出日期:  2009-03-19

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