移动WiMAX系统中精细频率同步方案的误差性能

2008 IEEE 10th International Symposium on Spread Spectrum Techniques and Applications Pub Date : 2008-09-05 DOI:10.1109/ISSSTA.2008.27

Hyun Yang, U. Her, Kwang-Soo Jeong, J. Yi, Hyoung-Kyu Song, Y. You

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引用次数: 1

摘要

剩余载波频偏(CFO)是正交频分复用(OFDM)系统中最重要的问题之一，其时变特性严重影响了系统的性能。本文分析了一种导频辅助精细CFO估计器在基于ofdm的移动WiMAX系统中的性能。本文报道了时变衰落信道下基于后fft的CFO同步方案的均方误差(MSE)的解析封闭表达式。结合IEEE802.16e标准的帧结构，验证了本文的分析。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Error Performance of Fine Frequency Synchronization Scheme in Mobile WiMAX Systems

Residual carrier frequency offset (CFO) is one of the most important problems in an orthogonal frequency division multiplexing (OFDM) system, which seriously degrades the performance of the systems due to its time-variant behavior. In this paper, the performance of a pilot-assisted fine CFO estimator in OFDM-based mobile WiMAX systems is analyzed. Analytical closed-form expression of the mean square error (MSE) of the post-FFT based CFO synchronization scheme is reported for time-variant fading channels. Taking into account the frame structure of the IEEE802.16e standard, we verify our analysis in this paper.

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2008 IEEE 10th International Symposium on Spread Spectrum Techniques and Applications

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