Bit Error Floor Reduction for MQAM Signals in the Presence of Phase Error

We propose a method to form a non-uniform decision boundary (NUDB) for <inline-formula> <tex-math notation="LaTeX">$M$ </tex-math></inline-formula>-ary quadrature amplitude modulation (MQAM) signals to reduce bit error floor (BEF) in the presence of phase error. We...

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Main Authors: Yeonsoo Jang, Janghoon Oh, Hyeongyong Lim
Format: Article
Language:English
Published: IEEE 2022-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/9998536/
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author Yeonsoo Jang
Janghoon Oh
Hyeongyong Lim
author_facet Yeonsoo Jang
Janghoon Oh
Hyeongyong Lim
author_sort Yeonsoo Jang
collection DOAJ
description We propose a method to form a non-uniform decision boundary (NUDB) for <inline-formula> <tex-math notation="LaTeX">$M$ </tex-math></inline-formula>-ary quadrature amplitude modulation (MQAM) signals to reduce bit error floor (BEF) in the presence of phase error. We put our focus on angle distances between MQAM symbols and adjacent decision boundaries to observe minimum angle distance, and derive optimum intervals for the decision boundaries to maximize the minimum angle distance. Through computer simulations, we verify that the proposed NUDB shows lower BEF than a conventional uniform decision boundary by 56&#x0025; and 15&#x0025; smaller for 16QAM and 64QAM, respectively.
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spelling doaj.art-ff0631621a214287ae3603a8d71c0ee32022-12-31T00:00:43ZengIEEEIEEE Access2169-35362022-01-011013435613436110.1109/ACCESS.2022.32320789998536Bit Error Floor Reduction for MQAM Signals in the Presence of Phase ErrorYeonsoo Jang0Janghoon Oh1Hyeongyong Lim2https://orcid.org/0000-0002-4920-1837Agency for Defense Development, Daejeon, South KoreaAgency for Defense Development, Daejeon, South KoreaAgency for Defense Development, Daejeon, South KoreaWe propose a method to form a non-uniform decision boundary (NUDB) for <inline-formula> <tex-math notation="LaTeX">$M$ </tex-math></inline-formula>-ary quadrature amplitude modulation (MQAM) signals to reduce bit error floor (BEF) in the presence of phase error. We put our focus on angle distances between MQAM symbols and adjacent decision boundaries to observe minimum angle distance, and derive optimum intervals for the decision boundaries to maximize the minimum angle distance. Through computer simulations, we verify that the proposed NUDB shows lower BEF than a conventional uniform decision boundary by 56&#x0025; and 15&#x0025; smaller for 16QAM and 64QAM, respectively.https://ieeexplore.ieee.org/document/9998536/Angle distancebit error floornon-uniform decision boundaryphase errorquadrature amplitude modulation
spellingShingle Yeonsoo Jang
Janghoon Oh
Hyeongyong Lim
Bit Error Floor Reduction for MQAM Signals in the Presence of Phase Error
IEEE Access
Angle distance
bit error floor
non-uniform decision boundary
phase error
quadrature amplitude modulation
title Bit Error Floor Reduction for MQAM Signals in the Presence of Phase Error
title_full Bit Error Floor Reduction for MQAM Signals in the Presence of Phase Error
title_fullStr Bit Error Floor Reduction for MQAM Signals in the Presence of Phase Error
title_full_unstemmed Bit Error Floor Reduction for MQAM Signals in the Presence of Phase Error
title_short Bit Error Floor Reduction for MQAM Signals in the Presence of Phase Error
title_sort bit error floor reduction for mqam signals in the presence of phase error
topic Angle distance
bit error floor
non-uniform decision boundary
phase error
quadrature amplitude modulation
url https://ieeexplore.ieee.org/document/9998536/
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