Uniquely Decodable Code for Two-User Multiple-Access Channel Using Complex-Valued Signal
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概要
- 論文の詳細を見る
This paper discusses a communication system with a multiple-access channel where two users simultaneously send complex-valued signals in the same frequency-band. In this channel, ambiguity in decoding occurs when receiver trying to estimate each users'signal. In order to solve the ambiguity problem, a family of uniquely decodable code is derived in this paper. The uniquely decodable code is designed by using trellis-coded modulation (TCM) pair where the trellis structure of one TCM is a transformation of the other in the pair. It is theoretically proved that. with the proposed coding scheme, the composite received signal can be uniquely decomposed into the two constituent signals for any power ratio and any phase difference between the received two users'signals. Improvement of BER performance over non-uniquely decodable code is illustrated by computer simulation.
- 社団法人電子情報通信学会の論文
- 2001-03-01
著者
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Murata H
Department Of Communications And Computer Engineering Graduate School Of Informatics Kyoto Universit
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MURATA Hidekazu
the Graduate School of Science and Engineering, Tokyo Institute of Technology
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YOSHIDA Susumu
the Graduate School of Informatics, Kyoto University
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Yoshida S
Kyoto Univ. Kyoto Jpn
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Murata H
Graduate School Of Science And Engineering Tokyo Institute Of Technology
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Murata Hidekazu
The Graduate School Of Informatics Kyoto University
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LI Yuan
the Graduate School of Informatics, Kyoto University Presently, with Communications Research Laborat
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Li Yuan
The Graduate School Of Informatics Kyoto University Presently With Communications Research Laborator
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Yoshida S
Kyoto Univ. Kyoto‐shi Jpn
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Yoshida Susumu
The Graduate School Of Informatics Kyoto University
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Yoshida S
Graduate School Of Informatics Kyoto University
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Li Y
The Department Of Commumcations And Integrated Systems Tokyo Institute Of Technology
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Yoshida Susumu
The Government Mechanical Laboratory
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