Performance Evaluation of the Orthogonal Four Single Sideband Elements Modulation Scheme in Multi-Carrier Transmission System
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概要
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This paper proposes the first study of performances of the Orthogonal Four Single Sideband elements modulation in OFDM (Orthogonal Frequency-Division Multiplexing) systems. Realistic parameters such as receiver noise and various channel effects are introduced in the derivations. Transmission of two QPSK signals multiplexed in one Four-SSB (Single Sideband) signal over OFDM is considered and a demodulation process exploiting a turbo equalizer composed of a convolutional decoder and a MMSE equalizer is presented. Computer simulations are used to verify the performances of the proposed modulation scheme. Results show that Four-SSB QPSK signal over OFDM can achieve performances close to QPSK-OFDM scheme while carrying twice more information, provided perfect channel equalization. However, we also show that in the non-ideal channel equalization case, performances of Four-SSB QPSK OFDM become highly sensitive to channel estimation errors.
- 2011-08-18
著者
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OHTA Gen-ichiro
Graduate School of Global Information and Telecommunication Studies, Waseda University
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Zhou Zhenyu
Waseda Univ. Tokyo Jpn
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Jiang Yi
Beijing University Of Posts And Telecommunications:national Institute Of Information And Communicati
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Ohta Gen-ichiro
Graduate School Of Global Information And Telecommunication Studies Waseda University
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Nanri Masahiko
Panasonic Mobile Communications Co. Ltd
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Sato Takuro
Graduate School Of Gits Waseda University
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Jiang Yi
Graduate School Of Global Information And Telecommunication Studies Waseda University
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Zhou Zhenyu
Graduate School Of Global Information And Telecommunication Studies Waseda Univ.
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Sato Takuro
Graduate School Of Global Information And Telecommunication Studies Waseda Univ.
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Nanri Masahiko
2Panasonic Mobile Communications Co., Ltd.
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Zhou Zhenyu
Graduate School Of Global Information And Telecommunication Studies (gits) Waseda University
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