Presentation 2012-03-07
PAPR performance of the spectrum splitting channel access scheme using overlap FFT filter-bank
Takuya NISHIZAWA, Takanori SATO, Masahiro UMEHIRA,
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Abstract(in English) A dynamic spectrum access to efficiently utilize the unused frequency in a time or space has been drawing a great deal of attentions to improve the frequency of utilization efficiency. To implement dynamic spectrum access in a real system, a flexible dynamic channel access technique, which can change the bandwidth and a channel frequency flexibly, is required. An OFDMA based dynamic channel access scheme and a single carrier modulation based scheme using filter bank are proposed for dynamic channel access. However, the OFDMA based dynamic channel scheme has a drawback of large PAPR(Peak to Average Power Ratio) as it is a multi-carrier modulation technique, and the single carrier modulation based scheme using a filter bank also has a drawback of large amount of signal processing since per channel FFT/IFFT is required. To solve these problems, the authors have been proposing the spectrum splitting channel access scheme using overlap FFT filter-bank. This paper evaluates PAPR performance of the proposed scheme and compares it with the conventional schemes.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Cognitive radio / Dynamic channel access / Spectrum splitting / PAPR
Paper # SR2011-119
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Conference Date 2012/2/29(1days)
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Language JPN
Title (in Japanese) (See Japanese page)
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Title (in English) PAPR performance of the spectrum splitting channel access scheme using overlap FFT filter-bank
Sub Title (in English)
Keyword(1) Cognitive radio
Keyword(2) Dynamic channel access
Keyword(3) Spectrum splitting
Keyword(4) PAPR
1st Author's Name Takuya NISHIZAWA
1st Author's Affiliation Graduate School of Science and Engineering, Ibaraki University()
2nd Author's Name Takanori SATO
2nd Author's Affiliation Graduate School of Science and Engineering, Ibaraki University
3rd Author's Name Masahiro UMEHIRA
3rd Author's Affiliation Graduate School of Science and Engineering, Ibaraki University
Date 2012-03-07
Paper # SR2011-119
Volume (vol) vol.111
Number (no) 452
Page pp.pp.-
#Pages 5
Date of Issue