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...
محفوظ في:
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| مؤلفون آخرون: | |
| التنسيق: | Theses and Dissertations |
| منشور في: |
2008
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| الوصول للمادة أونلاين: | http://hdl.handle.net/10356/3279 |
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| المؤسسة: | Nanyang Technological University |
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sg-ntu-dr.10356-3279 |
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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 |