Channel estimation based on neural network in space time block coded MIMO-OFDM system

被引：51

作者：

Seyman, Muhammet Nuri ^{[1
]}

Taspinar, Necmi ^{[2
]}

机构：

[1] Kirikkale Univ, Vocat High Sch, Dept Elect Commun, TR-71450 Kirikkale, Turkey

[2] Erciyes Univ, Dept Elect & Elect Engn, TR-38039 Kayseri, Turkey

来源：

DIGITAL SIGNAL PROCESSING | 2013年 / 23卷 / 01期

关键词：

MIMO-OFDM; Feed-forward neural network; Channel impulse response (CIR); Levenberg-Marquardt algorithm; DESIGN;

D O I：

10.1016/j.dsp.2012.08.003

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this study, we propose feed-forward multilayered perceptron (MLP) neural network trained with the Levenberg-Marquardt algorithm to estimate channel parameters in MIMO-OFDM systems. Bit error rate (BER) and mean square error (MSE) performances of least square (LS) and least mean square error (LMS) algorithms are also compared to our proposed neural network to evaluate the performances. Neural network channel estimator has got much better performance than LS and LMS algorithms. Furthermore it doesn't need channel statistics and sending pilot tones, contrary to classical algorithms. Crown Copyright (C) 2012 Published by Elsevier Inc. All rights reserved.

引用

页码：275 / 280

页数：6

共 13 条

[1] A simple transmit diversity technique for wireless communications [J].

Alamouti, SM .

IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, 1998, 16 (08) :1451-1458

[2]

Balevi Wen J.-H, 2006, IEEE VEHICULAR TECHN, P1, DOI [10.1109/VTCF.2006.404, DOI 10.1109/VTCF.2006.404]

[3] Optimal training design for MIMO OFDM systems in mobile wireless channels [J].

Barhumi, I ;

Leus, G ;

Moonen, M .

IEEE TRANSACTIONS ON SIGNAL PROCESSING, 2003, 51 (06) :1615-1624

[4] ANALYSIS AND SIMULATION OF A DIGITAL MOBILE CHANNEL USING ORTHOGONAL FREQUENCY-DIVISION MULTIPLEXING [J].

CIMINI, LJ .

IEEE TRANSACTIONS ON COMMUNICATIONS, 1985, 33 (07) :665-675

[5]

Hagan M. T., 1997, Neural network design

[6] TRAINING FEEDFORWARD NETWORKS WITH THE MARQUARDT ALGORITHM [J].

HAGAN, MT ;

MENHAJ, MB .

IEEE TRANSACTIONS ON NEURAL NETWORKS, 1994, 5 (06) :989-993

[7]

Harjula L, 2003, GLOB TELECOMM CONF, P143

[8] A fourth-generation MIMO-OFDM broadband wireless system: Design, performance, and field trial results [J].

Sampath, H ;

Talwar, S ;

Tellado, J ;

Erceg, V ;

Paulraj, A .

IEEE COMMUNICATIONS MAGAZINE, 2002, 40 (09) :143-149

[9]

Seyman MN, 2008, IEICE T COMMUN, VE91B, P2426, DOI [10.1093/ietcom/e9l-b.7.2426, 10.1093/ietcom/e91-b.7.2426]

[10]

Stuber G.L., 2001, PRINCIPLE MOBILE COM, V2nd

← 1 2 →