CDMA多用户接收机由具有降噪增强效果的去相关检测器组成

IEEE Military Communications Conference, 2003. MILCOM 2003. Pub Date : 2003-10-13 DOI:10.1109/MILCOM.2003.1290126

M. Tomito, H. Inokura, K. Otake, N. Kuroyanagi, S. Ozawa, S. Matsufuji

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引用次数: 3

摘要

在CDMA多用户检测中，去相关检测器(DD)是一种消除干扰的功能强大的器件。然而，在解去相关矩阵方程的过程中，它表现出相当大的噪声增强效果。提出了一种新的DD，其DM由导频响应本身组成。采用了带保护的扩展序列和在DM中插入虚拟导频响应等附加技术。该DD表示该功能可以显著降低噪声放大，从而显著提高性能。

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CDMA multi-user receiver composed of de-correlating detectors with reduced noise enhancement effect

A de-correlating detector (DD) is a powerful device that can eliminate interference in CDMA multi-user detection. However, it shows considerable noise enhancement effect in the process of solving the de-correlating matrix (DM) equation. A new DD is proposed whose DM consists of pilot response itself. Additional techniques such as using spreading sequences with guards and inserting dummy pilot responses into DM are adopted. This DD indicates a function that significantly reduces the noise amplification, resulting in remarkable performance improvement.

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来源期刊

IEEE Military Communications Conference, 2003. MILCOM 2003.

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