基于改进确定性结构的交错OFDMA上行载波频偏估计

Hsin-Yi Huang, Shyue-Win Wei
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引用次数: 0

摘要

针对正交频分多址(OFDMA)上行传输,提出了一种改进的基于确定性结构的载波频偏估计算法。该算法将传统的确定性结构算法与多址干扰消除方法相结合,显著提高了估计性能。本文提出的迭代CFO估计算法在AWGN和多径衰落信道上都能很好地工作,特别是在系统满载且有效CFO非常接近的情况下。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Modified deterministic structure based carrier frequency offset estimation for interleaved OFDMA uplink
A modified deterministic structure based carrier frequency offset (CFO) estimation algorithm is presented for the interleaved orthogonal frequency division multiple access (OFDMA) uplink transmission. The presented algorithm combines the conventional deterministic structure algorithm with multiple access interference (MAI) cancellation method so that the estimation performance can be significantly improved. The presented iterative CFO estimation algorithm can work well on both AWGN and multi-path fading channels, especially when the system is fully loaded and the effective CFOs are very close to each other.
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