DS-CDMA系统中DA - ML载波相位恢复环路的MAI抑制

Gateway to 21st Century Communications Village. VTC 1999-Fall. IEEE VTS 50th Vehicular Technology Conference (Cat. No.99CH36324) Pub Date : 1999-09-19 DOI:10.1109/VETECF.1999.801717

L. Schumacher, L. Vandendorpe

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引用次数: 3

摘要

本文分析研究了通过直接序列码分多址(DS-CDMA)技术授予访问权限的多用户系统中的最大似然相位恢复问题。针对多址干扰，设计了一种数据辅助相位恢复环路。对其开环和闭环特性进行了研究，并通过计算加以说明。结果表明，多用户相位估计器减轻了MAI，并且比单用户相位估计器显示出更小的方差。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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MAI mitigation in DA ML carrier phase recovery loops for DS-CDMA systems

This paper analytically investigates maximum-likelihood (ML) phase recovery in a multiuser system granting access through the direct sequence-code division multiple access (DS-CDMA) technique. A data-aided (DA) phase recovery loop is designed to face multiple access interference (MAI). Open- and closed-loop behaviour are studied and illustrated by computations. It is shown that the multiuser phase estimator mitigates MAI and exhibits a smaller variance than the single-user one.

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来源期刊

Gateway to 21st Century Communications Village. VTC 1999-Fall. IEEE VTS 50th Vehicular Technology Conference (Cat. No.99CH36324)

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