Algorithmic Exploration and Implementation of a MIMO-OFDM Equalizer

被引：0

作者：

Sarrigeorgidis, Konstantinos ^{[1
]}

Ma, Yong ^{[1
]}

机构：

[1] Marvell Semicond Inc, Santa Clara, CA 95054 USA

来源：

JOURNAL OF SIGNAL PROCESSING SYSTEMS FOR SIGNAL IMAGE AND VIDEO TECHNOLOGY | 2010年 / 61卷 / 02期

关键词：

Wireless communications; MIMO-OFDM; Equalizers for communication systems; Zero Forcing Equalization; QR decomposition; Matrix factorizations; Givens rotations; CORDIC arithmetic;

D O I：

10.1007/s11265-009-0411-y

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

In this paper we explore algorithms and architectures for the implementation of a MIMO OFDM Equalizer for high speed wireless communications. The algorithmic exploration is based on matrix computations and factorizations. A scalable computational methodology and architecture is proposed for the implementation of a 4x4 MIMO OFDM. A 2x3 Equalizer supporting Maximum Ratio Combining and Zero Forcing equalization for 20/40 MHz 64-QAM OFDM modulation has been implemented in 150 nm technology. The Equalizer area is 133k gates and the maximum throughput achieved is 480Mbits/s. The system described in this paper is compliant with the latest IEEE standard for MIMO wireless communications (802.11n).

引用

页码：141 / 156

页数：16

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