High speed look-ahead LMS detector for MIMO systems

Wen Chih Kan; Gerald E. Sobelman

doi:10.1109/SIPS.2007.4387517

High speed look-ahead LMS detector for MIMO systems

Wen Chih Kan, Gerald E. Sobelman

Electrical and Computer Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Adaptive MIMO detection is used when knowledge of the channel is unavailable. We propose an efficient look-ahead LMS algorithm for MIMO systems which has no noticeable performance loss compared to the standard LMS procedure. In particular, the additional logic introduced into the feedback path can be retimed to reduce the critical path delay. We illustrate this by implementing both the retimed look-ahead LMS and standard LMS on a Xilinx Virtex 4 FPGA. Our synthesis results show that the new design can operate at 173 MHz, compared to 135 MHz for standard LMS.

Original language	English (US)
Title of host publication	2007 IEEE Workshop on Signal Processing Systems, SiPS 2007, Proceedings
Pages	56-60
Number of pages	5
DOIs	https://doi.org/10.1109/SIPS.2007.4387517
State	Published - Dec 1 2007
Event	2007 IEEE Workshop on Signal Processing Systems, SiPS 2007 - Shanghai, China Duration: Oct 17 2007 → Oct 19 2007

Publication series

Name	IEEE Workshop on Signal Processing Systems, SiPS: Design and Implementation
ISSN (Print)	1520-6130

Other

Other	2007 IEEE Workshop on Signal Processing Systems, SiPS 2007
Country/Territory	China
City	Shanghai
Period	10/17/07 → 10/19/07

Keywords

LMS
Look-ahead
MIMO
Retiming

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10.1109/SIPS.2007.4387517

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Kan, WC & Sobelman, GE 2007, High speed look-ahead LMS detector for MIMO systems. in 2007 IEEE Workshop on Signal Processing Systems, SiPS 2007, Proceedings., 4387517, IEEE Workshop on Signal Processing Systems, SiPS: Design and Implementation, pp. 56-60, 2007 IEEE Workshop on Signal Processing Systems, SiPS 2007, Shanghai, China, 10/17/07. https://doi.org/10.1109/SIPS.2007.4387517

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High speed look-ahead LMS detector for MIMO systems

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