基于循环前缀的OFDM系统噪声方差和功率延迟轮廓估计

PACRIM. 2005 IEEE Pacific Rim Conference on Communications, Computers and signal Processing, 2005. Pub Date : 2005-10-17 DOI:10.1109/PACRIM.2005.1517340

T. Cui, C. Tellambura

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引用次数: 3

摘要

本文给出了正交频分复用(OFDM)系统中基于循环前缀(CP)的参数估计。由于使用CP的信号相关性被利用，而不需要额外的导频符号。估计了噪声方差、功率延迟分布、路径数和信噪比。提出的算法可以很容易地用于最小均方误差(MMSE)均衡等应用。

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Cyclic-prefix based noise variance and power delay profile estimation for OFDM systems

In this paper, we derive cyclic-prefix (CP) based parameter estimators for orthogonal frequency division multiplexing (OFDM) systems. Signal correlation due to the use of the CP is exploited without requiring additional pilot symbols. Noise variance, power delay profile, the number of paths and the signal to noise ratio are estimated. The proposed algorithms can be readily used for applications such as minimum mean-square error (MMSE) equalization.

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PACRIM. 2005 IEEE Pacific Rim Conference on Communications, Computers and signal Processing, 2005.

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