Multi-Dimensional Block Shaping
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概要
- 論文の詳細を見る
A multi-dimensional shaping scheme based on multi-level Maximum Average Weight (MAW)-codes is presented. One can reduce the average energy of transmitted signal, by using low energy signal points more frequently than high energy ones. The proposed scheme employs a multi-dimensional region of 2, 4, 6 and 8 dimensions ; these regions are selected using a multi-level MAW-code. A multi-level MAW-code is a q-ary code and has unequal probability of the occurrence of a symbol. The scheme can achieve a shaping gain of 0. 6- 1. 0 dB with small constellation expansion ratio and peak to average energy ratio. This scheme is based on a two-level table look up algorithm. Therefore, the less complexity of encoding/decoding can be realized.
- 社団法人電子情報通信学会の論文
- 1995-08-25
著者
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KASAHARA Masao
Department of Pathology, Shizuoka Red Cross Hospital
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Wadayama T
Okayama Prefectural Univ. Okayama Jpn
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Wadayama Tadashi
Faculty Of Computer Science And System Engineering Okayama Prefectural University
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Kasahara Masao
Department Of Pathology Fujita Health University School Of Medicine
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Kasahara Masao
Osaka Gakuin Univ. Suita‐shi Jpn
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WAKASUGI Koichiro
Department of Electronics and Information Science, Kyoto Institute of Technology
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Wakasugi Koichiro
Department Of Electronics And Information Science Kyoto Institute Of Technology
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Kasahara Masao
Department Of Electronics And Information Science Faculty Of Engineering And Design Kyoto Institute
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Kasahara Masao
Department of Faculty of Informatics, Osaka Gakuin University
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