| タイトル | Multiuser Detection Algorithm for CDMA based on the Belief Propagation Algorithm |
|---|---|
| 著者 | 堀井俊佑 、須子統太 、松嶋敏泰 、平澤茂一 |
| 年度 | 2008 |
| 形式 | 国際学会 |
| 分野 | その他 |
| 掲載雑誌名 | Proceedings of 2008 IEEE 10th International Symposium on Spread Spectrum Techniques and Applications (ISSSTA08) |
| 掲載号・ページ | pp.194-199, Bologna, Italy |
| 掲載年 | 2008 |
| 掲載月 | 8 |
| アブスト （日本語） |
学会名：IEEE 10th International Symposium on Spread Spectrum Techniques and Applications (ISSSTA08) 日程：2008年8月25日～8月28日 場所： Bologna, Italy |
| アブスト （英語） |
Optimum detection for the multiuser code-division multiple-access channel is prohibitively complex. This paper considers new iterative multiuser detection algorithm based on the belief propagation algorithm. Previously, the idea to apply the belief propagation algorithm to multiuser detection problem was suggested , however, it was believed that to apply the belief propagation algorithm to the detection problem is impossible because it requires an exponentially large amount of computation. It was the only fact that the parallel interference canceller is derived as an approximation of the belief propagation. In this paper, we show that the belief propagation algorithm can be applied to the detection problem by converting the factor graph structure. Performance of the detector based on the belief propagation algorithm is better than that of the parallel interference canceller. |
| 備考 （日本語） |
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| 備考 （英語） |
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