MMSE-DFE Equalizer for Discrete Wavelet Packet Transform Based Wireless Communication System for Channel Equalization

Fasih Ud din Farrukh; Syed Mudassir Hussain; Atiq Ur  Rehman; Shah Marjan; Bilawal Rehman

MMSE-DFE Equalizer for Discrete Wavelet Packet Transform Based Wireless Communication System for Channel Equalization

Fasih Ud din Farrukh, Syed Mudassir Hussain, Atiq Ur Rehman, Shah Marjan, Bilawal Rehman

Research output: Contribution to journal › Article › peer-review

Abstract

Discrete Wavelet Packet Transform (DWPT) based Orthogonal Frequency Division Multiplexing (OFDM) system has been suggested and it has been the area of study for many researchers over the years. The major benefit of using DWPT,
it does not require Cyclic Prefix (CP) which improves the spectral efficiency of OFDM based communication systems. In this article, DWPT based OFDM is used and for equalization, Decision Feedback Equalizer (MMSE-DFE) is proposed.
Equalization is a key factor in wavelet-based communication systems. Non-linear MMSE-DFE is applied to the system for DWPT based OFDM (WOFDM) and compared with linear Minimum Mean Squared Error (MMSE) and Zero Forcing (ZF)
equalizers. The system is simulated for Finite Impulse Response (FIR) channels. The noises are used in simulation are Additive White Gaussian Noise (AWGN) and impulse noise. There is a clear improvement of system’s bit error rate (BER)
for MMSE-DFE in comparison with MMSE and ZF equalization techniques in addition of noise while looking at simulation results.

Original language	English
Pages (from-to)	108-112
Number of pages	5
Journal	Journal of Applied and Emerging Sciences
Volume	12
Issue number	02
Publication status	Published - 31 Dec 2022

Keywords

Discrete Wavelet Packet Transform
Zero-Forcing Equalization
MMSE-DFE Equalization
FIR Channels

Cite this

@article{6d6d4c0eba6947c0b0276f2f588e815f,

title = "MMSE-DFE Equalizer for Discrete Wavelet Packet Transform Based Wireless Communication System for Channel Equalization",

abstract = "Discrete Wavelet Packet Transform (DWPT) based Orthogonal Frequency Division Multiplexing (OFDM) system has been suggested and it has been the area of study for many researchers over the years. The major benefit of using DWPT,it does not require Cyclic Prefix (CP) which improves the spectral efficiency of OFDM based communication systems. In this article, DWPT based OFDM is used and for equalization, Decision Feedback Equalizer (MMSE-DFE) is proposed.Equalization is a key factor in wavelet-based communication systems. Non-linear MMSE-DFE is applied to the system for DWPT based OFDM (WOFDM) and compared with linear Minimum Mean Squared Error (MMSE) and Zero Forcing (ZF)equalizers. The system is simulated for Finite Impulse Response (FIR) channels. The noises are used in simulation are Additive White Gaussian Noise (AWGN) and impulse noise. There is a clear improvement of system{\textquoteright}s bit error rate (BER)for MMSE-DFE in comparison with MMSE and ZF equalization techniques in addition of noise while looking at simulation results.",

keywords = "Discrete Wavelet Packet Transform, Zero-Forcing Equalization, MMSE-DFE Equalization, FIR Channels",

author = "Farrukh, {Fasih Ud din} and Hussain, {Syed Mudassir} and Rehman, {Atiq Ur} and Shah Marjan and Bilawal Rehman",

year = "2022",

month = dec,

day = "31",

language = "English",

volume = "12",

pages = "108--112",

journal = "Journal of Applied and Emerging Sciences",

number = "02",

}

TY - JOUR

T1 - MMSE-DFE Equalizer for Discrete Wavelet Packet Transform Based Wireless Communication System for Channel Equalization

AU - Farrukh, Fasih Ud din

AU - Hussain, Syed Mudassir

AU - Rehman, Atiq Ur

AU - Marjan, Shah

AU - Rehman, Bilawal

PY - 2022/12/31

Y1 - 2022/12/31

N2 - Discrete Wavelet Packet Transform (DWPT) based Orthogonal Frequency Division Multiplexing (OFDM) system has been suggested and it has been the area of study for many researchers over the years. The major benefit of using DWPT,it does not require Cyclic Prefix (CP) which improves the spectral efficiency of OFDM based communication systems. In this article, DWPT based OFDM is used and for equalization, Decision Feedback Equalizer (MMSE-DFE) is proposed.Equalization is a key factor in wavelet-based communication systems. Non-linear MMSE-DFE is applied to the system for DWPT based OFDM (WOFDM) and compared with linear Minimum Mean Squared Error (MMSE) and Zero Forcing (ZF)equalizers. The system is simulated for Finite Impulse Response (FIR) channels. The noises are used in simulation are Additive White Gaussian Noise (AWGN) and impulse noise. There is a clear improvement of system’s bit error rate (BER)for MMSE-DFE in comparison with MMSE and ZF equalization techniques in addition of noise while looking at simulation results.

AB - Discrete Wavelet Packet Transform (DWPT) based Orthogonal Frequency Division Multiplexing (OFDM) system has been suggested and it has been the area of study for many researchers over the years. The major benefit of using DWPT,it does not require Cyclic Prefix (CP) which improves the spectral efficiency of OFDM based communication systems. In this article, DWPT based OFDM is used and for equalization, Decision Feedback Equalizer (MMSE-DFE) is proposed.Equalization is a key factor in wavelet-based communication systems. Non-linear MMSE-DFE is applied to the system for DWPT based OFDM (WOFDM) and compared with linear Minimum Mean Squared Error (MMSE) and Zero Forcing (ZF)equalizers. The system is simulated for Finite Impulse Response (FIR) channels. The noises are used in simulation are Additive White Gaussian Noise (AWGN) and impulse noise. There is a clear improvement of system’s bit error rate (BER)for MMSE-DFE in comparison with MMSE and ZF equalization techniques in addition of noise while looking at simulation results.

KW - Discrete Wavelet Packet Transform

KW - Zero-Forcing Equalization

KW - MMSE-DFE Equalization

KW - FIR Channels

M3 - Article

VL - 12

SP - 108

EP - 112

JO - Journal of Applied and Emerging Sciences

JF - Journal of Applied and Emerging Sciences

IS - 02

ER -

MMSE-DFE Equalizer for Discrete Wavelet Packet Transform Based Wireless Communication System for Channel Equalization

Abstract

Keywords

Fingerprint

Cite this