Iterative joint data detection and channel estimation of DS/CDMA signals in multipath fading using the SAGE algorithm

被引：0

作者：

Kocian, A ^{[1
]}

Hu, B ^{[1
]}

Rom, C ^{[1
]}

Sorensen, P ^{[1
]}

Fleury, BH ^{[1
]}

Poulsen, EK ^{[1
]}

机构：

[1] Aalborg Univ, Dept Commun Technol, DK-9220 Aalborg, Denmark

来源：

CONFERENCE RECORD OF THE THIRTY-SEVENTH ASILOMAR CONFERENCE ON SIGNALS, SYSTEMS & COMPUTERS, VOLS 1 AND 2 | 2003年

关键词：

D O I：

暂无

中图分类号：

TP18 [人工智能理论];

学科分类号：

081104 ; 0812 ; 0835 ; 1405 ;

摘要：

The paper presents two iterative multiuser detection and channel estimation (JDE) receivers of tractable complexity for downlink transmission using beamforming. The receivers results from an application of the Space-Alternating Generalized Expectation-Maximization (SAGE) algorithm and a modified version. The proposed JDE schemes update the channel parameters in parallel and re-estimates the users' symbols in successive order. Monte Carlo simulations in a frequency-selective scenario show that the JDE schemes are robust against errors in the estimation of the channel coefficients.

引用

页码：443 / 447

页数：5

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