Optimization of Bit Error Rate Using MIMO OFDM System
Volume: 6 - Issue: 12 - Date: 01-12-2017
Approved ISSN: 2278-1412
Published Id: IJAECESTU325 | Page No.: 1201-1206
Author: Nishi Chouksey
Co- Author: Pooja Gupta ,Dr. Soni Changlani
Abstract:-The major challenging task in multiple input multiple output (MIMO) OFDM systems
is to design a good channel estimation method with less computational complexity and lower value
of bit error rate (BER). Here, a novel signal processing method based on combining the
advantages of multi-scale property of wavelet transform (WT) with blind estimation capability of
independent component analysis (ICA), called, a multi-scale ICA (MS-ICA) has been proposed to
estimate the channel characteristics. The MS-ICA method can effectively identify the channel
impulse response under unknown channel conditions i.e. blindly. Performance of the proposed
MSICA method is evaluated by calculating the BER for different fading channels. As compared to
other well known OFDM channel estimation methods the proposed MS-ICA method resulted in a
lower value of BER, which indicates the superiority of the proposed method. The proposed ASP
channel estimation method firstly utilizes the PN based correlation in the time-domain to obtain
the auxiliary channel information.
Key Words:-MIMO, OFDM, Channel estimation, Bit error rate,
Area:-Engineering
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