Presentation | 2001/6/15 On Characteristics of MC-CDMA Using a Non-Linear Amplifier and Its Improvements Takao NIHEI, Masanori HAMAMURA, Shin'ichi TACHIKAWA, |
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Abstract(in Japanese) | (See Japanese page) |
Abstract(in English) | This paper proposes a novel MC-CDMA system, namely, suppressed peak-power MC-CDMA (abbreviated as SPP-MC-CDMA) system and presents the characteristics. Generally, the signal of MC-CDMA system becomes analog wave as using OFDM modulation techniques. Then, when using a non-linear amplifier for high efficiency of power, the signal distortion arises and the BER performance is much degraded. The proposed SPP-MC-CDMA system suppresses the peak power of analog wave by controlling the frequency interleaver and the spreading codes, and it is effective against the non-linear problem. As a result of computer simulations, we show that the characteristics of SPP-MC-CDMA system using random interleaving with M-sequence and suppressed peak-power spreading codes (SPP-SC) are more improved than that of a conventional MC-CDMA system. |
Keyword(in Japanese) | (See Japanese page) |
Keyword(in English) | MC-CDMA / peak-power suppression / non-linear amplifier / random interleaving / spreading code |
Paper # | SST2001-21,SAT2001-25 |
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Committee | SAT |
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Conference Date | 2001/6/15(1days) |
Place (in Japanese) | (See Japanese page) |
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Topics (in Japanese) | (See Japanese page) |
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Paper Information | |
Registration To | Satellite Telecommunications (SAT) |
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Language | JPN |
Title (in Japanese) | (See Japanese page) |
Sub Title (in Japanese) | (See Japanese page) |
Title (in English) | On Characteristics of MC-CDMA Using a Non-Linear Amplifier and Its Improvements |
Sub Title (in English) | |
Keyword(1) | MC-CDMA |
Keyword(2) | peak-power suppression |
Keyword(3) | non-linear amplifier |
Keyword(4) | random interleaving |
Keyword(5) | spreading code |
1st Author's Name | Takao NIHEI |
1st Author's Affiliation | Tachikawa lab., Faculty of Engineering, Nagaoka University of Technology() |
2nd Author's Name | Masanori HAMAMURA |
2nd Author's Affiliation | Department of Information Systems Engineering, Kochi University of Technology |
3rd Author's Name | Shin'ichi TACHIKAWA |
3rd Author's Affiliation | Tachikawa lab., Faculty of Engineering, Nagaoka University of Technology |
Date | 2001/6/15 |
Paper # | SST2001-21,SAT2001-25 |
Volume (vol) | vol.101 |
Number (no) | 128 |
Page | pp.pp.- |
#Pages | 6 |
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