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引用次数: 19
摘要
本文提出了OFDMA (OFDM-FDMA)系统的鲁棒定时和频率同步技术。在ITU-R M. 1225的多径信道环境下，将提出的定时同步方案的检测概率、虚报警、缺失概率和平均采集时间与T.M. Scmidl等(1997)的现有方法进行比较，证明了所提方案的优越性。本文还讨论了用均方误差(MSE)和信号星座来显示载波频偏估计的性能。
Robust timing & frequency synchronization techniques for OFDM-FDMA systems
In this paper, robust timing & frequency synchronization techniques for OFDMA (OFDM-FDMA) systems is presented. Under the multi-path channel environment of ITU-R M. 1225, detection probability, false alarm, missing probability, and mean acquisition time of the proposed timing synchronization scheme are compared with the existing method of T.M. Scmidl et al, (1997) to demonstrate the excellence of the proposed scheme. MSE (mean square error) and signal constellation to show the performance of carrier frequency offset estimation is also addressed in this paper.
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