Coded Modulation for Satellite Broadcasting Based on Unconventional Partitionings (Special Section on Information Theory and Its Applications)
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概要
- 論文の詳細を見る
Unequal error protection (UEP) is a very promising coding technique for satellite broadcasting, as it gradually reduces the transimission rate. From the viewpoint of bandwidth efficiency, UEP should be achieved in the context of multilevel coded modulation. However, the conventional mapping between encoded bits and modulation signals, usually realized for multilevel block modulation codes and multistage decoding, is not very compatible with UEP coding because of the large number of resulting nearest neighbor codewords. In this paper, new coded modulation schemes for UEP based on unconventional partitioning are proposed. A linear operation referred to as interlevel combination is introduced. This operation generalizes previous partitioning proposed for UEP applications and provides additional flexibility with respect to UEP capabilities. The error performance of the proposed codes are evaluated both by computer simulations and a theoretical analysis. The obtained results show that the proposed codes achieve good tradeoff between the proportion and the error performance of each error protection level.
- 社団法人電子情報通信学会の論文
- 1998-10-25
著者
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Morelos-zaragoza Robert
Advanced Telecommunications Laboratory Sony Computer Science Laboratories Inc.
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Fossorier Marc
ハワイ大学電気工学科
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Fossorier Marc
The Department Of Electrical Engineering University Of Hawaii
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Fossorier Marc
University Of Hawaii At Manoa Dept.electrical Engineering Usa.
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Fossorier M
University Of Hawaii
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Fossorier Marc
The Author Is With The University Of Hawaii Department Of Electrical Engineering
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Fossorier Marc
Dept. Of Electrical Engineering University Of Hawaii At Manoa
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Lin Shu
California Univ. Ca Usa
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Shu Lin
University Of Hawaii At Manoa Dept.electrical Engineering Usa.
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Morelos-Zaragoza Robert
LSI LOGIC Corporation, Milpitas CA, USA.
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ISAKA Motohiko
Institute of Industrial Science, The University of Tokyo
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LIN Shu
Dept. of Electrical Engineering, University of Hawaii
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IMAI Hideki
Institute of Industrial Science, The University of Tokyo
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Morelos-Zaragoza Robert
東京大学生産技術研究所
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Imai H
The Institute Of Industrial Science The University Of Tokyo
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井坂 元彦
東京大学 生産技術研究所
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Lin Shu
University Of Hawaii At Manoa Dept. Electrical Engineering
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Fossorier Marc
University Of Hawai At Manoa Dept.of Electrical Engineering
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Imai Hideki
Institute Of Industrial Science The University Of Tokyo
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Isaka M
Univ. Tokyo Tokyo Jpn
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Isaka Motohiko
Institute Of Industrial Science University Of Tokyo
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Morelos-zaragoza Robert
Lsi Logic Corporation
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Morelos-zaragoza Robert
Lsi Logic Corporation Communication Products Division
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Morelos‐zaragoza R
San Jose State Univ. Ca Usa
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Imai Hideki
Institute Of Industrial Science Interfaculty Initiative For Information Studies University Of Tokyo
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