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正交频分复用系统中相位噪声的影响与抑制 被引量：2

Effects and suppression of phase noise in OFDM systems
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摘要 在分析本振相位噪声对正交频分复用(orthogonal frequency division multiplexing,OFDM)系统性能影响的基础上,建立了一种新的相噪频域模型,并基于该模型提出了加入相噪估计导频来跟踪相噪的方法。由于导频与数据子载波之间有空子载波作为保护间隔,该方法可以估计出相噪的高阶频谱分量,从而有效地抑制相噪引入的共同相位误差(common phase error,CPE)和载波间干扰(inter-carrier interference,ICI)。仿真结果表明方法的有效性。 Effects of phase noise on OFDM systems are analyzed and a new model of phase noise is created in frequency domain. Based on the model, phase noise is tracked using the phase-noise estimation pilots inserted in OFDM transmission band. The pilots are separated from information subcarriers by null subcarriers acting as frequency guard interval （FGI）, and then the higher order spectrum of phase noise can be estimated. Phase noise suppression, including common phase error （CPE） and inter-carrier interference （ICI）, is also investigated. Simulation results are shown which demonstrated the effectiveness of the proposed algorithm.
作者 刘光辉 朱维乐
机构地区 电子科技大学电子工程学院
出处 《系统工程与电子技术》 EI CSCD 北大核心 2005年第8期1369-1372,1411,共5页 Systems Engineering and Electronics
基金 韩国三星公司项目基金资助课题(HO4010201WO20340)
关键词 正交频分复用 载波间干扰 共同相位误差 相位噪声 orthogonal frequency division multiplexing inter-carrier interference common phase error phase noise
分类号 TN911.72 [电子电信—通信与信息系统]
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参考文献9

  • 1Stott J. The effects of phase noise in COFDM [R]. BBC Research and Development EBU Technical Review, 1998.
  • 2Gholami M R, Nader-Esfahani S, Eftekhar A A. A new method of phase noise compensation in OFDM [ C]. ICC, 2003. 3443 -3446.
  • 3Petrovie D, Rave W, Fettweis G. Phase noise suppression in OFDM including intercarrier interference [ A]. Proc. International OFDM Workshop ( lnOWo )[ C] . Hamburg, Germany, 2003. 219-224.
  • 4Florent Munier, Thomas Eriksson, Arne Svensson. Receiver algorithms for OFDM systems in phase noise and AWGN[A]. Proc. of IEEE International Symposium on Personal, Indoor, and Mobile Radio Communications[C]. Barcelona, Spain, 2004.
  • 5El-Tanany Mohamed S, Wu Yiyan, et al. Analytical modeling and simulation of phase noise interference in OFDM-based digital television terrestrial broadcasting systems [J]. IEEE Trans. on Broadcasting, 2001, 47(1) : 20- 31.
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同被引文献10

  • 1Robertson P, Kaiser S. Analysis of the effects of phase noise in orthogonal frequency division multiplex (OFDM) systems[C]. IEEE: Intermational Conference on Communication, Seattle, WA, Ju 18-22, 1995, New York: IEEE press, 1995, 1652-1657.
  • 2Armada A G. Understanding the effects of phase noise in orthogonal frequency division multiplexing (OFDM)[J]. IEEE Transaction on Broadcasting, 47 : 153- 159.
  • 3Piazzo L, Mandarini P. Analysis of phase noise effects in OFDM modems[J]. IEEE Transactions on Communica- tions, 50(1): 1 696-1 705.
  • 4Ryu H G, Li Y, Park J S. An improved ICI reduction method in OFDM communication systems[J]. IEEE Transac- tion on Broadcast, 51(3): 395-400.
  • 5Liu G, Zhu W. Compensation of phase noise in OFDM systems using an ICI reduction scheme[J]. IEEE Transaction Broadcast, 50(4) : 399-407.
  • 6Wu S, Liu P, Bar-Ness Y. Phase noise estimation and mitigation for OFDM systems[J]. IEEE Transactions on, Wireless Communications, 2006, 5(12): 3 616-3 625.
  • 7Wu Songping, Yeheskel Bar-Ness. A phase noise suppression algorithm for OFDM-Based WLANs[J]. IEEE com- mun Letters, 6(12): 535-538.
  • 8Zhu Yu, Letaief K B. Single carrier frequency domain equalization with time domain noise prediction for wideband wireless communications[J]. IEEE Transactions on Wireless Communications, 2006, 5(12): 3 548-3 557.
  • 9Barry J R, Messerschmitt D G, Lee E A. Digital Communication[M]. 3rd ed. Dordrecht Netherlands: Kluwer Aca-demic Publishers, 2004.
  • 10陈赟,曾晓洋,陈琛,潘安.一种低复杂度的消除相位噪声的方法[J].中国图象图形学报,2009,14(10):2114-2117. 被引量：2

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系统工程与电子技术
2005年 第8期

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