Turbo Equalized Double Window Cancellation and Combining Robust to Large Delay Spread Channel
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概要
- 論文の詳細を見る
In orthogonal frequency division multiplexing (OFDM) the multipath exceeding the guard interval (GI) causes inter-symbol interference (ISI) and inter-carrier interference (ICI), thereby making it difficult to achieve high data rate transmission. In this paper, the double window cancellation and combining (DWCC), introduced in [14], is analyzed by investigating SINR distribution under different delay spread channels. The analysis indicates that the extension of processing window in iterative cancellation can have an adverse effect on the performance for small interference levels. In addition, the optimal combining of DWCC and turbo equalization (TE), named TE-DWCC, is investigated by varying the iterative cancellation procedure between DWCC and channel decoder and the decision feedback type such as hard decision feedback (HDF) or soft decision feedback (SDF). Finally, by changing interference level, code rate, and decision feedback type, the performance of TE-DWCC is compared with the conventional canceller that adopts turbo equalization in the exponentially distributed slow fading channel.
- （社）電子情報通信学会の論文
- 2009-02-01
著者
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NAKAGAWA Masao
Keio University
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NAKAGAWA Masao
Department of Information and Computer Science, Keio University
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Ohtsuki T
Faculty Of Science And Technology Keio University
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OHTSUKI Tomoaki
Faculty of Science and Technology, Keio University
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NAKAGAWA Masao
Faculty of Science and Technology, Keio University
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Lee Junhwan
Faculty Of Science And Technology Keio University
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Ohtsuki Tomoaki
Faculty Of Science And Technology Keio University
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Nakagawa Masao
Faculty Of Science And Technology Keio University
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Nakagawa Masao
Department Of Information And Computer Science Keio University
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Nakagawa Masao
Faculty Of Agriculture The University Of Tokyo
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