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OFDM-UWB系统在时变信道中的性能分析 被引量：2

Performance of OFDM-UWB System in Time-Varying Channels
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摘要 根据超宽带信道呈现频率选择性和时间选择性衰落之特征,分析正交频分复用超宽带(OFDM-UWB)系统的性能,并在基于散射体移动的时变多径信道模型上进行仿真。研究结果表明,当信号信噪比较小时散射体移动不会对系统性能产生太大的影响,同时缓慢移动的散射体对系统性能的影响也不大。因此,在大部分的室内环境下散射体移动对系统性能产生的影响可以忽略。 The performance of the ultra-wideband （UWB） communication system, which is based on orthogonal frequency-division multiplexing （OFDM）, was analyzed on the frequency-selective time-selective fading channels. The effect of scatterers movement on the system was simulated. It showed that the scatterers movement has slight effect on the UWB system when the signal-to-noise ratio （SNR） is small and the effect is mild when the relocity of scatterers is slow. In most indoor environments, the effect of scatterers movement is negligible.
作者 包志华 张士兵
机构地区 南通大学电子信息学院
出处 《南京邮电大学学报（自然科学版）》 EI 2007年第1期1-5,共5页 Journal of Nanjing University of Posts and Telecommunications：Natural Science Edition
基金 国家高技术研究发展计划(863计划)(2005AA123320) 江苏省高校自然科学研究计划(05KJB510101)资助项目
关键词 性能分析 时变信道 室内环境 超宽带 Performance analysis Time-varying channels Indoor environments Ultra-Wideband
分类号 TN911.7 [电子电信—通信与信息系统]
  • 相关文献

参考文献12

  • 1FONTANA R J.Recent system applications of short-pulse ultra-wideband (UWB) technology[J].IEEE Trans on Microwave Theory and Techniques,2004,52(9):2087-2104.
  • 2MUNOZ M,RUBIO C G.A new model for service and application convergence in B3G/4G networks[J].IEEE Trans on Wireless Communications,2004,3(10):6-12.
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  • 8张士兵,张力军.超宽带信道建模与仿真[J].南京邮电学院学报（自然科学版）,2005,25(3):50-53. 被引量：13
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二级参考文献5

  • 1WIN M Z, SCHOLTZ R A. Characterization of Ultra-Wide Bandwidth Wireless Indoor Channels: A Communication-Theoretic View[J]. IEEE JSAC, 2002, 20: 128～137.
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共引文献12

同被引文献11

  • 1张士兵,张力军.超宽带信道建模与仿真[J].南京邮电学院学报（自然科学版）,2005,25(3):50-53. 被引量：13
  • 2宋铁成,尤肖虎,沈连丰,宋晓晋.基于导频和修正Kalman滤波的MIMO-OFDM信道估计方法[J].通信学报,2007,28(2):23-28. 被引量：12
  • 3MUNOZ M, RUBIO C G. A new model for service and application convergence in B3G/4G networks[J]. IEEE Trans on Wireless Communications, 2004, 3(10): 6-12.
  • 4READ J H. An introduction to ultra wide band communication systems[M]. New Jersey, USA: Prentice Hall, 2005.
  • 5NIRANJAYAN S, NALLANATHAN A, KANNAN B. Exact modeling of multiple access interference and BER derivation for TH-PPM UWB [C]//IEEE Wireless Communications and Networking Conference. New Orleans, LA USA: IEEE Press, 2005: 2801-2806.
  • 6MARIA-GABRIELLA DI BENEDOTTO, GUERINO GIANCOLA. Understanding ultra wide band radio fundamentals[M]. Beijing: Publishing House of Electronics Industry, 2005.
  • 7TAN S S, NALLANATHAN A, KANNAN B. Performance of DS-UWB multiple-access system with diversity reception in dense multi-path environments[J]. IEEE Trans on Vehicular Technology, 2006, 55(4): 1269-1280.
  • 8ZHAO S, LIU H, MO S. Performance of a multi-band ultra-wide-band system over indoor wireless channel[C]// Proceeding of CC-NC'04. Nevada: IEEE Press, 2004: 700-702.
  • 9MOLISH A F. Time variance for UWB wireless channels[EB/OL]. [2007-9-1]. http://grouper. ieee. org/group s/802. 15/pub/2002.
  • 10FOERSTER J. Channel modeling sub-committee report final[EB/OL]. [2007-9-1]. http://grouper. ieee. org/group s/802. 15/pub/2003.

引证文献2

二级引证文献1

南京邮电大学学报（自然科学版）
2007年 第1期

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