On the implementation of adaptive equalizers for wireless ATM with an extended QR-decomposition-based RLS-algorithm

被引：0
|
作者：
Drewes, C [1 ]
Hasholzner, R [1 ]
Hammerschmidt, JS [1 ]
机构：
[1] Tech Univ Munich, Inst Integrated Circuits, D-80290 Munchen, Germany
来源：
PROCEEDINGS OF THE 1998 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH AND SIGNAL PROCESSING, VOLS 1-6 | 1998年
关键词：
D O I：
暂无
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
An extended QR-decomposition (QRD)-based RLS-algorithm is introduced, applicable for equalization, allowing an estimate of the transmitted symbol, when it is a-priori unknown. To achieve low-cost implementations strength reduction and square-root free Givens-rotations are applied. Several QRD-based RLS-algorithms are compared in terms of the number of mathematical operations. The QR-RLS-algorithm indicates lowest complexity and is always a good candidate,when a huge trainig overhead has to be avoided, resulting in an equalizer of less than 15 taps. Finally, the hardware complexity of a 13 MBaud-DFE for wireless ATM is estimated.
引用
收藏
页码：3445 / 3448
页数：4
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