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Unequal rate transmission for sum rate maximization over two-user Gaussian multiple access channel
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Description
A two-user unequal rate repeat accumulate (RA) code is considered for a Gaussian multiple access channel (GMAC) with binary inputs, equal-power, and symbol synchronization. In this scheme, a regular RA code whose rate can be changed freely is employed for each user. At the receiver, two-user message-passing decoding is performed on a single factor graph. Over the GMAC, a fixed point analysis is developed to obtain all achievable pairs-of-rates, in which the optimal pair-of-rates gives the maximum sum rate in the sense that the error rate of detected information bits approaches zero.
Journal
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- 同志社大学ハリス理化学研究報告
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同志社大学ハリス理化学研究報告 57 (2), 137-145, 2016-07-31
Harris Science Research Institute of Doshisha University
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Details 詳細情報について
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- CRID
- 1390853649844747520
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- NII Article ID
- 120005829835
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- NII Book ID
- AA12716107
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- NDL BIB ID
- 027588192
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- ISSN
- 21895937
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- Text Lang
- en
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- Article Type
- departmental bulletin paper
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- Data Source
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- JaLC
- IRDB
- NDL Search
- CiNii Articles
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- Abstract License Flag
- Allowed