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导频信号辅助OFDM调制的性能分析与仿真 被引量:1

Analysis and Simulation of Pilot -Aided OFDM BER Performance
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摘要 详细分析了时间选择性衰落信道中导频信号辅助MQAM-OFDM调制的传输误码性能,给出了相应的计算公式、计算机数值分析结果以及蒙特卡罗仿真结果,为导频信号辅助MQAM-OFDM调制在无线信道中的应用提供理论分析依据。 A transmission error code performan ce for pilot -aided MQAM -OFDM modula-tion schemes on the time -selective f ading channelis analyzed.The corre sponding BERformulas,comput-eraided numeric results and Mente -Karo simulation results are also given.Therefore it provides a theoret-ical basis for application of pilot -aided MQAM-OFDM modulation schemes in wireless channel in this paper.
作者 罗晓良 李健
出处 《通信技术》 2003年第1期23-24,27,共3页 Communications Technology
关键词 导频信号辅助调制 多电平-正交频分复用调制 多普勒频移 pilot -aided modulation,MQAM-OFDM,doppler frequency offset
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参考文献3

  • 1[1]Alard M, Lassalle R. Principles of Modulation and Channel Coding for Digital Broadcasting for Mobile Receivers. EBU Review -Technical No224, August 1987
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  • 3[3]Tang Xiaoyi. Alouini M S, Goldsmith A J. Effect of channel estimation error on M - QAM BER performance in rayleigh fading. IEEE Trans.on Communications, December 1999; 47 (12): 1856~1864

同被引文献8

  • 1钱辰,雪伟龙,王昭成.编码调制系统算法的性能比较[J].电视技术,2010,34(z2):79-82.
  • 2Mahmut Yalcin, Aydin Akan, Hakan Do, Low - com- plexity channel estimation for OFDM systems in high - mobility fading channels [ J ]. Gan Turk J Elec Eng & Comp Sci, 2012,20(4) :583 -592.
  • 3Ma X, Kobayashi H, Schwartz S C. EM -based chan- nel estimation algorithms for OFDM [ J ]. Eurasip Journal on Applied Signal Processing, 2004,10 : 1460 - 1477.
  • 4Lu B, Wang X, Li Y G. Iterative receivers for space - time block coded OFDM systems in dispersive fading channels [ J ]. IEEE Transactions on Wireless Communi- cations, 2002, 1(2) :213 - 225.
  • 5Christensen, L P B, Larsen J. On data and parameteres -timation using the variational Bayesian EM- algo- rithm for block - fading frequency - selective MIMO channels [ C ]. In Proceedings of IEEE International Conference on Acoustics, Speech and Signal Processing ICASSP 2006, Toulouse ( France), 2006 : IV.
  • 6Lin D D, Lira T J. A variational inference framework for soft - insoft - out detection in multiple - access channels [ J ]. IEEE Transactions on Information Theory, 2009, 55 ( 5 ) :2345 - 2363.
  • 7Sadough S M S, Duhamel P. Improved iterative detec- tion and achieved throughputs of OFDM systems under imperfect channel estimation[ J ]. IEEE Transactions on Wireless Communications,2008,7(12) : 5039 - 5050.
  • 8刘备备,巩龙延,赵生妹,郑芝芳.一种随机行列循环移位交织器的设计与仿真[J].南京邮电大学学报(自然科学版),2012,32(6):58-62. 被引量:2

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