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Performance Analysis of STFT Based Timing Approach to OFDM Systems 被引量：3

Performance Analysis of STFT Based Timing Approach to OFDM Systems
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摘要 This paper mainly focuses on performance analysis of the previously proposedSTFT based 2-D timing approach to OFDM systems and presents simulations results of its performancein AWGN and multipath fading environment and its robustness against the duration of Channel ImpulseResponse (CIR) and frequency offset. Simulation results suggest that a revised version of Short-TimeFourier Transform (STFT) can be used to greatly reduce computational complexity, especially athigher SNR. This paper mainly focuses on performance analysis of the previously proposedSTFT based 2-D timing approach to OFDM systems and presents simulations results of its performancein AWGN and multipath fading environment and its robustness against the duration of Channel ImpulseResponse (CIR) and frequency offset. Simulation results suggest that a revised version of Short-TimeFourier Transform (STFT) can be used to greatly reduce computational complexity, especially athigher SNR.
作者 KUANGYu-jun TENGYong YINChang-chuan: HAOJian-jun YUEGuang-xin
机构地区 ChongqingUniversityofPostsandTelecommunications SchoolofTelecommunicationEngineering
出处 《The Journal of China Universities of Posts and Telecommunications》 EI CSCD 2003年第4期23-27,共5页 中国邮电高校学报（英文版）
基金 ThisworkissupportedbytheNationalNaturalScienceFund (No. 60 1 72 0 52 90 1 0 4 0 1 8)andKeyProjectsof 863Program (No.2 0 0 1AA1 2 30 1 6) .
关键词 OFDM symbol timing short-time fourier transform (STFT) time- frequencyspectrum SYNCHRONIZATION OFDM symbol timing short-time fourier transform (STFT) time- frequencyspectrum synchronization
分类号 TN92 [电子电信—通信与信息系统] TN911.6 [电子电信—通信与信息系统]
  • 相关文献

参考文献15

  • 1WEI L, SCHLEGEL C. Synchronization requirements for multi-user OFDM on satellite mobile and two-path Rayleigh fading channels [J]. IEEE Trans on Commum, 1995, 43(2- 4): 887- 895.
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二级参考文献23

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  • 5WEI L, SCHLEGEL C. Synchronization requirements for multiuser OFDM on satellite mobile and two path rayleigh fading channels[J]. IEEE Trans on Communications, 1995, 43(2-4): 887-895.
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  • 9MATIC D, COENEN A J R M, SCHOUTE F C, et al. OFDM timing synchronization:possibilities and limits to the usage of the cyclic prefix for maximum likelihood estimation[A]. Proceedings of IEEE VTC 50th Vehicular Technology Conference[C]. Piscataway(NJ): IEEE,1999,2:668-672.
  • 10RICHARD NEE, RAMJEE PRASAD. OFDM wireless multimedia communications [M]. Artech House, 1999.

共引文献11

同被引文献22

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The Journal of China Universities of Posts and Telecommunications
2003年 第4期

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