講演名 | 2013-12-19 Orthogonal Code-Multiplexed Frequency-Domain Single-Carrier Spread Spectrum , |
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抄録(英) | The authors have proposed a frequency-domain single-carrier spread spectrum (SC-FDSS) transmission technique, which achieves better bit-error rate (BER) and better power amplifier-dependent energy efficiency comparing with time-domain spread spectrum (TDSS). However, its wider transmission bandwidth leads to low spectrum efficiency, implying that a multiplexing technique is necessary. In this paper, we introduce an orthogonal code multiplexing technique for the FDSS called multi-code single-carrier FDSS (MC-SC-FDSS) for code division multi-access. The signal block to be transmitted is firstly transformed into frequency-domain signal by discrete Fourier transform (DFT), and then code multiplexing is done to achieve narrower transmit bandwidth. Joint frequency-domain equalization based on minimum mean-square error criterion (MMSE-FDE) and de-spreading is carried out for acquiring frequency diversity gain. Theoretical analysis and simulation results in terms of BER and PAPR of both single-code and multi-code SC-FDSS are shown and compared with conventional TDSS and multi-carrier SS (MCSS) |
キーワード(和) | |
キーワード(英) | Single-carrier (SC) transmission / spread spectrum (SS) / code-division multiplexing (CDM) |
資料番号 | RCS2013-224 |
発行日 |
研究会情報 | |
研究会 | RCS |
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開催期間 | 2013/12/11(から1日開催) |
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講演論文情報詳細 | |
申込み研究会 | Radio Communication Systems (RCS) |
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本文の言語 | ENG |
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サブタイトル(和) | |
タイトル(英) | Orthogonal Code-Multiplexed Frequency-Domain Single-Carrier Spread Spectrum |
サブタイトル(和) | |
キーワード(1)(和/英) | / Single-carrier (SC) transmission |
第 1 著者 氏名(和/英) | / Amnart BOONKAJAY |
第 1 著者 所属(和/英) | Department of Communications Engineering, Graduate School of Engineering, Tohoku University |
発表年月日 | 2013-12-19 |
資料番号 | RCS2013-224 |
巻番号(vol) | vol.113 |
号番号(no) | 361 |
ページ範囲 | pp.- |
ページ数 | 6 |
発行日 |