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Channel Estimation Technique for STBC coded MIMO System with Multiple ANN Blocks

by Parismita Gogoi, Kandarpa Kumar Sarma
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International Journal of Computer Applications
Foundation of Computer Science (FCS), NY, USA
Volume 50 - Number 13
Year of Publication: 2012
Authors: Parismita Gogoi, Kandarpa Kumar Sarma
10.5120/7830-1018

Parismita Gogoi, Kandarpa Kumar Sarma . Channel Estimation Technique for STBC coded MIMO System with Multiple ANN Blocks. International Journal of Computer Applications. 50, 13 ( July 2012), 10-14. DOI=10.5120/7830-1018

@article{ 10.5120/7830-1018,
author = { Parismita Gogoi, Kandarpa Kumar Sarma },
title = { Channel Estimation Technique for STBC coded MIMO System with Multiple ANN Blocks },
journal = { International Journal of Computer Applications },
issue_date = { July 2012 },
volume = { 50 },
number = { 13 },
month = { July },
year = { 2012 },
issn = { 0975-8887 },
pages = { 10-14 },
numpages = {9},
url = { https://ijcaonline.org/archives/volume50/number13/7830-1018/ },
doi = { 10.5120/7830-1018 },
publisher = {Foundation of Computer Science (FCS), NY, USA},
address = {New York, USA}
}
%0 Journal Article
%1 2024-02-06T20:48:11.440721+05:30
%A Parismita Gogoi
%A Kandarpa Kumar Sarma
%T Channel Estimation Technique for STBC coded MIMO System with Multiple ANN Blocks
%J International Journal of Computer Applications
%@ 0975-8887
%V 50
%N 13
%P 10-14
%D 2012
%I Foundation of Computer Science (FCS), NY, USA
Abstract

In this work, a channel estimation technique based on Artificial Neural Networks (ANN) has been proposed as an alternative to pilot based channel estimation technique for Space-Time Block Coded Multiple-Input Multiple-Output (STBC- MIMO) systems over Rayleigh fading channels. ANNs, due to their high degree of adaptability, can be used for modelling the nonlinear phenomenon of channel estimation and for decoding the degraded symbols over severely faded channel. Two different ANN structures, namely Multilayer Perceptron (MLP) and Recurrent Neural Networks (RNN) have been trained and tested extensively for estimating the channel in STBC- MIMO systems with Binary Phase Shift Keying (BPSK) modulation scheme. Simulated results in terms of Bit Error Rates (BER) vs. Signal to Noise Ratio (SNR) have been used to compare the effectiveness of the learning capability of the two ANN structures over wireless fading channel. RNN structures are found to outperform the MLP, both in terms of training performance and BER results and thus proving its nonlinear dynamic adaptive behaviour.

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Index Terms

Computer Science
Information Sciences

Keywords

STBC Rayleigh Channel MLP RNN BER

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