MIMO OFDM系统中MMSE检测器结构的复杂性分析

Conference Record of the Thirty-Ninth Asilomar Conference onSignals, Systems and Computers, 2005. Pub Date : 2005-11-01 DOI:10.1109/ACSSC.2005.1599705

M. Myllyla, J.-H. Hintikka, Joseph R. Cavallaro, M. Juntti, M. Limingoja, A. Byman

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引用次数: 57

摘要

本文考虑了一种现场可编程门阵列(FPGA)实现的线性最小均方误差(LMMSE)检测器用于MIMO-OFDM系统。介绍了两种基于QR分解(QRD)的无平方根算法来实现LMMSE检测器。这两种算法都是基于通过给定旋转的QRD，即坐标旋转数字计算机(CORDIC)和平方给定旋转(SGR)算法。考虑了线性和三角形阵列结构来利用计算中的并行性。给出了一种FPGA硬件实现，并对每种实现的计算复杂度进行了评估和比较

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Complexity Analysis of MMSE Detector Architectures for MIMO OFDM Systems

In this paper, a field programmable gate array (FPGA) implementation of a linear minimum mean square error (LMMSE) detector is considered for MIMO-OFDM systems. Two square root free algorithms based on QR decomposition (QRD) are introduced for the implementation of LMMSE detector. Both algorithms are based on QRD via Givens rotations, namely coordinate rotation digital computer (CORDIC) and squared Givens rotation (SGR) algorithms. Linear and triangular shaped array architectures are considered to exploit (he parallelism in the computations. An FPGA hardware implementation is presented and computational complexity of each implementation is evaluated and compared

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Conference Record of the Thirty-Ninth Asilomar Conference onSignals, Systems and Computers, 2005.

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