A Low Complexity Architecture for OFCDM Downlink Transmitter Using Joint Time-Frequency Spreading and IFFT
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概要
- 論文の詳細を見る
In this letter, a low complexity transmitter is proposed for the downlinks of orthogonal frequency code division multiplexing (OFCDM) systems. The principle is based on a joint time-frequency spreading and inverse fast Fourier transform (TFS-IFFT), which combines the frequency spreading with partial stages of IFFT, so as to simplify the real-time processing. Compared with the conventional one, the proposed OFCDM transmitter is of lower real-time computational complexity, especially for those with large spreading factor or low modulation level. Furthermore, the proposed TFS-IFFT can also be applied to other frequency spreading systems, such as MC-CDMA, for complexity reduction.
- （社）電子情報通信学会の論文
- 2009-10-01
著者
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DAN Lilin
National Key Lab of Communications, Univ of Elec. Sci.& Tech. of China
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XIAO Yue
National Key Lab of Communications, Univ of Elec. Sci.& Tech. of China
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NI Wei
Nakajima Laboratory, Department of Human Communication, The University of Electro-Communications
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LI Shaoqian
National Key Lab of Communications, Univ of Elec. Sci.& Tech. of China
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Ni Wei
Nakajima Laboratory Department Of Human Communication The University Of Electro-communications
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Xiao Yue
National Key Lab Of Communications Univ Of Elec. Sci. & Tech. Of China
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Xiao Yue
National Key Lab Of Communication In University Of Electronic Science And Technology Of China (uestc
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Dan Lilin
National Key Lab Of Communications Univ Of Elec. Sci. & Tech. Of China
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Li Shaoqian
National Key Lab Of Communications Univ Of Elec. Sci. & Tech. Of China
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Li Shaoqian
National Key Lab Of Communication In University Of Electronic Science And Technology Of China (uestc
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Xiao Yue
National Key Lab Of Communications Univ Of Elec. Sci. & Tech. Of China Uestc
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Li Shaoqian
National Key Lab Of Communications Univ Of Elec. Sci. & Tech. Of China Uestc
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