On timing and frequency offset estimation in OFDM systems
On timing and frequency offset estimation in OFDM systems
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DOI：
10.1109/tencon.2004.1414730
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发表时间：
2004-11
期刊：
影响因子：
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通讯作者：
A. K. Reddy;A. Mahanta;P. Bora
中科院分区：
文献类型：
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作者：
A. K. Reddy;A. Mahanta;P. Bora
我们提出了一些修改的算法，用于估计的符号定时和载波频率偏移（CFO）在正交频分复用（OFDM）为基础的无线局域网（WLAN）使用的802.11标准化组指定的前导码。对于定时估计，我们建议在决策变量中进行修改，这将减少估计中的不确定性，并且对于CFO，我们建议使用重复相关算法以获得更高的操作范围和同时更好的精度。我们提出了计算机模拟来证明我们的建议的有效性。
We suggest some modifications in the algorithms used for estimation of symbol timing and carrier frequency offset (CFO) in orthogonal frequency division multiplexing (OFDM)-based wireless local area networks (WLANs) using the preamble specified by the 802.11 standardization group. For timing estimate we suggest a modification in the decision variable, which would reduce the uncertainty in the estimate, and for CFO we suggest the use of a repetitive correlation algorithm for higher operating range and at the same time better precision. We present the computer simulations to demonstrate the effectiveness of our suggestions.