Presentation 2008-10-22
Effect of Pulse Shaping Filters on Fractional Sampling OFDM Systems with Subcarrier-based Maximal Ratio Combining
Mamiko INAMORI, Takashi KAWAI, Tatsuya KOBAYASHI, Haruki NISHIMURA, Yukitoshi SANADA,
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Abstract(in English) In this paper, effect of an impulse response of a pulse shaping filter on a fractional sampling orthogonal frequency division multiplexing (FS OFDM) system is investigated. FS achieves path diversity with a single antenna through oversampling and subcarrier-based maximal ratio combining (MRC). Though the oversampling increases diversity order, correlation among noise components may deteriorate bit error rate (BER) performance. To clarify the relationship between the impulse response of the pulse shaping filter and the BER performance, five different pulse shaping filters are evaluated in the FS OFDM system. Numerical results through computer simulation show that the Frobenius norm of a whitening matrix corresponding to the pulse shaping filter has significant effect on the BER performance especially with a smaller number of subcarriers.
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Keyword(in English) OFDM / Fractional Sampling / Diversity / Pulse Shaping Filter
Paper # SR2008-42
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Conference Date 2008/10/15(1days)
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Language JPN
Title (in Japanese) (See Japanese page)
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Title (in English) Effect of Pulse Shaping Filters on Fractional Sampling OFDM Systems with Subcarrier-based Maximal Ratio Combining
Sub Title (in English)
Keyword(1) OFDM
Keyword(2) Fractional Sampling
Keyword(3) Diversity
Keyword(4) Pulse Shaping Filter
1st Author's Name Mamiko INAMORI
1st Author's Affiliation Dept. of Electronics and Electrical Engineering, Keio University()
2nd Author's Name Takashi KAWAI
2nd Author's Affiliation Dept. of Electronics and Electrical Engineering, Keio University
3rd Author's Name Tatsuya KOBAYASHI
3rd Author's Affiliation Dept. of Electronics and Electrical Engineering, Keio University
4th Author's Name Haruki NISHIMURA
4th Author's Affiliation Dept. of Electronics and Electrical Engineering, Keio University /
5th Author's Name Yukitoshi SANADA
5th Author's Affiliation
Date 2008-10-22
Paper # SR2008-42
Volume (vol) vol.108
Number (no) 250
Page pp.pp.-
#Pages 7
Date of Issue