Study of a novel adaptive bit loading and power control scheme for OFDM systems

Study of a novel adaptive bit loading and power control scheme for OFDM systems

In this thesis, we begin by investigating the fading characteristics of OFDM subcarriers and discover that some OFDM channels exhibit non-uniform subcar-rier fading distributions. For such channels, we propose a novel adaptive modula-tion scheme to achieve better spectral efficiency, transmission po...

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Main Author: Song, Zhefeng.
Other Authors: Guan, Yong Liang
Format: Theses and Dissertations
Published: 2008
Subjects:
DRNTU::Engineering::Electrical and electronic engineering::Wireless communication systems
Online Access:http://hdl.handle.net/10356/3279
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Institution: Nanyang Technological University
id sg-ntu-dr.10356-3279
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spelling sg-ntu-dr.10356-32792023-07-04T15:18:10Z Study of a novel adaptive bit loading and power control scheme for OFDM systems Song, Zhefeng. Guan, Yong Liang School of Electrical and Electronic Engineering DRNTU::Engineering::Electrical and electronic engineering::Wireless communication systems In this thesis, we begin by investigating the fading characteristics of OFDM subcarriers and discover that some OFDM channels exhibit non-uniform subcar-rier fading distributions. For such channels, we propose a novel adaptive modula-tion scheme to achieve better spectral efficiency, transmission power savings and equalized subcarrier bit error rates (BERs) for OFDM systems. As the proposed scheme effectively performs adaptive bit loading and power control on the OFDM subcarriers based on their fading statistics instead of instantaneous fading gains, we call it a "statistical OFDM adaptation" scheme. Master of Engineering 2008-09-17T09:26:17Z 2008-09-17T09:26:17Z 2003 2003 Thesis http://hdl.handle.net/10356/3279 Nanyang Technological University application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
topic DRNTU::Engineering::Electrical and electronic engineering::Wireless communication systems
spellingShingle DRNTU::Engineering::Electrical and electronic engineering::Wireless communication systems
Song, Zhefeng.
Study of a novel adaptive bit loading and power control scheme for OFDM systems
description In this thesis, we begin by investigating the fading characteristics of OFDM subcarriers and discover that some OFDM channels exhibit non-uniform subcar-rier fading distributions. For such channels, we propose a novel adaptive modula-tion scheme to achieve better spectral efficiency, transmission power savings and equalized subcarrier bit error rates (BERs) for OFDM systems. As the proposed scheme effectively performs adaptive bit loading and power control on the OFDM subcarriers based on their fading statistics instead of instantaneous fading gains, we call it a "statistical OFDM adaptation" scheme.
author2 Guan, Yong Liang
author_facet Guan, Yong Liang
Song, Zhefeng.
format Theses and Dissertations
author Song, Zhefeng.
author_sort Song, Zhefeng.
title Study of a novel adaptive bit loading and power control scheme for OFDM systems
title_short Study of a novel adaptive bit loading and power control scheme for OFDM systems
title_full Study of a novel adaptive bit loading and power control scheme for OFDM systems
title_fullStr Study of a novel adaptive bit loading and power control scheme for OFDM systems
title_full_unstemmed Study of a novel adaptive bit loading and power control scheme for OFDM systems
title_sort study of a novel adaptive bit loading and power control scheme for ofdm systems
publishDate 2008
url http://hdl.handle.net/10356/3279
_version_ 1772826825648504832

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