IEICE TRANSACTIONS on Communications
A Novel Dynamic Channel Access Scheme Using Overlap FFT Filter-Bank for Cognitive Radio
Summary :
An OFDMA based channel access scheme is proposed for dynamic spectrum access to utilize frequency spectrum efficiently. Though the OFDMA based scheme is flexible enough to change the bandwidth and channel of the transmitted signals, the OFDMA signal has large PAPR (Peak to Average Power Ratio). In addition, if the OFDMA receiver does not use a filter to extract sub-carriers before FFT (Fast Fourier Transform) processing, the designated sub-carriers suffer large interference from the adjacent channel signals in the FFT processing on the receiving side. To solve the problems such as PAPR and adjacent channel interference encountered in the OFDMA based scheme, this paper proposes a novel dynamic channel access scheme using overlap FFT filter-bank based on single carrier modulation. It also shows performance evaluation results of the proposed scheme by computer simulation.
- Publication
- IEICE TRANSACTIONS on Communications Vol.E92-B No.12 pp.3589-3596
- Publication Date
- 2009/12/01
- Publicized
- Online ISSN
- 1745-1345
- DOI
- 10.1587/transcom.E92.B.3589
- Type of Manuscript
- Special Section PAPER (Special Section on Dynamic Spectrum Access)
- Category
- Spectrum Allocation
Authors
Keyword
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Motohiro TANABE, Masahiro UMEHIRA, Koichi ISHIHARA, Yasushi TAKATORI, "A Novel Dynamic Channel Access Scheme Using Overlap FFT Filter-Bank for Cognitive Radio" in IEICE TRANSACTIONS on Communications,
vol. E92-B, no. 12, pp. 3589-3596, December 2009, doi: 10.1587/transcom.E92.B.3589.
Abstract: An OFDMA based channel access scheme is proposed for dynamic spectrum access to utilize frequency spectrum efficiently. Though the OFDMA based scheme is flexible enough to change the bandwidth and channel of the transmitted signals, the OFDMA signal has large PAPR (Peak to Average Power Ratio). In addition, if the OFDMA receiver does not use a filter to extract sub-carriers before FFT (Fast Fourier Transform) processing, the designated sub-carriers suffer large interference from the adjacent channel signals in the FFT processing on the receiving side. To solve the problems such as PAPR and adjacent channel interference encountered in the OFDMA based scheme, this paper proposes a novel dynamic channel access scheme using overlap FFT filter-bank based on single carrier modulation. It also shows performance evaluation results of the proposed scheme by computer simulation.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.E92.B.3589/_p
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@ARTICLE{e92-b_12_3589,
author={Motohiro TANABE, Masahiro UMEHIRA, Koichi ISHIHARA, Yasushi TAKATORI, },
journal={IEICE TRANSACTIONS on Communications},
title={A Novel Dynamic Channel Access Scheme Using Overlap FFT Filter-Bank for Cognitive Radio},
year={2009},
volume={E92-B},
number={12},
pages={3589-3596},
abstract={An OFDMA based channel access scheme is proposed for dynamic spectrum access to utilize frequency spectrum efficiently. Though the OFDMA based scheme is flexible enough to change the bandwidth and channel of the transmitted signals, the OFDMA signal has large PAPR (Peak to Average Power Ratio). In addition, if the OFDMA receiver does not use a filter to extract sub-carriers before FFT (Fast Fourier Transform) processing, the designated sub-carriers suffer large interference from the adjacent channel signals in the FFT processing on the receiving side. To solve the problems such as PAPR and adjacent channel interference encountered in the OFDMA based scheme, this paper proposes a novel dynamic channel access scheme using overlap FFT filter-bank based on single carrier modulation. It also shows performance evaluation results of the proposed scheme by computer simulation.},
keywords={},
doi={10.1587/transcom.E92.B.3589},
ISSN={1745-1345},
month={December},}
Copy
TY - JOUR
TI - A Novel Dynamic Channel Access Scheme Using Overlap FFT Filter-Bank for Cognitive Radio
T2 - IEICE TRANSACTIONS on Communications
SP - 3589
EP - 3596
AU - Motohiro TANABE
AU - Masahiro UMEHIRA
AU - Koichi ISHIHARA
AU - Yasushi TAKATORI
PY - 2009
DO - 10.1587/transcom.E92.B.3589
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E92-B
IS - 12
JA - IEICE TRANSACTIONS on Communications
Y1 - December 2009
AB - An OFDMA based channel access scheme is proposed for dynamic spectrum access to utilize frequency spectrum efficiently. Though the OFDMA based scheme is flexible enough to change the bandwidth and channel of the transmitted signals, the OFDMA signal has large PAPR (Peak to Average Power Ratio). In addition, if the OFDMA receiver does not use a filter to extract sub-carriers before FFT (Fast Fourier Transform) processing, the designated sub-carriers suffer large interference from the adjacent channel signals in the FFT processing on the receiving side. To solve the problems such as PAPR and adjacent channel interference encountered in the OFDMA based scheme, this paper proposes a novel dynamic channel access scheme using overlap FFT filter-bank based on single carrier modulation. It also shows performance evaluation results of the proposed scheme by computer simulation.
ER -
English
