Subblock processing in MMSE-FDE under fast fading environments
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概要
- 論文の詳細を見る
Frequency domain equalization (FDE) has been studied for reducing inter-symbol interference (ISI) caused by frequency selective fading in single carrier systems. When a high-mobility terminal exists in the system, the channel state may change within a DFT block. Then, the ISI reduction performance of FDE degrades since cyclicity of the channel matrix is lost. We propose to divide a received data block into multiple subblocks to decrease the channel transition within the DFT block in fast fading environments. Also, to satisfy periodicity of the received signal in each subblock, we introduce a pseudo cyclic prefix technique. The results of numerical analysis show that the proposed method can effectively decrease the error floor in fast fading environments.
- IEEEの論文
著者
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Nishimura Tadashi
The Ulsi Development Center Mitsubishi Electric Corporation
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Nishimura Tadashi
Ulsi Research And Development Center Mitsubishi Electric Corporation
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Ogawa Y
Riken Wako‐shi Jpn
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Ogawa Yasutaka
Division Of Electronics And Information Engineering Faculty Of Engineering Hokkaido University
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KAMBARA Keiichi
Graduate School of Information Science and Technology, Hokkaido University
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Kambara Keiichi
Graduate School Of Information Science And Technology Hokkaido University
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