预编码OFDM迭代检测的理论研究

Yoko Masuda, K. Ohno, M. Itami
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引用次数: 0

摘要

通过在频域对数据符号进行预编码,提高了OFDM的性能。然而,不希望在信噪比很低的特定载波上的加性噪声会降低系统的总体性能。为了克服这个问题,已经提出了预编码OFDM的迭代检测方法。为了实现最优检测,本文对预编码OFDM的检测进行了理论分析。通过分析,推导出了达到较好性能的条件。
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A theoretical study on iterative detection of pre-coded OFDM
The performance of OFDM is improved by pre-coding data symbols in the frequency domain. However, it is not desirable that additive noise on the specific carrier whose signal-to-noise ratio is very low may degrade total system performance. Iterative detection of pre-coded OFDM has already been proposed to overcome this problem. In this paper, theoretical analysis of detection of pre-coded OFDM is performed in order to achieve optimal detection. As the result of analysis, some condition that achieves better performance has been derived.
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