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Impact of Chip Duty Factor on DS, TH and DS-TH UWB Systems in Realistic Environment
http://hdl.handle.net/10191/26119
http://hdl.handle.net/10191/26119fab42bb3-c736-4a37-8cdf-7e81e1ef0b78
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
93_10_1716-1723.pdf (504.7 kB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2014-03-11 | |||||
| タイトル | ||||||
| タイトル | Impact of Chip Duty Factor on DS, TH and DS-TH UWB Systems in Realistic Environment | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | UWB | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | chip duty factor | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | DS | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | TH | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | DS-TH | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | energy capture | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| 著者 |
Sum, Chin-Sean
× Sum, Chin-Sean× Sasaki, Shigenobu× Harada, Hiroshi |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | In this paper, the impact of chip duty factor (DF) on direct sequence (DS), time hopping (TH) and hybrid DS-TH ultra wideband (UWB) systems is investigated in realistic environments. Rake receivers are designed to perform energy capture (EC) on received UWB signals over multipath and multi-user environment in the presence of narrowband interference. It is found that by applying lower DF in the signal design, multipath resolvability can be increased and system performance can be improved. However, in contrary to the common belief, lower DF does not always contribute to performance improvement. On the other hand, it is observed that at extremely low DF, EC capability may be compromised, causing performance degradation. The optimum DF values for respective systems are determined and discussed in this paper. Additionally, the strength and tradeoff for DS, TH and DS-TH UWB systems employing varying DF are investigated and compared over multipath and multi-user environment. In a multipath environment, a selective Rake receiver with less than 10 fingers is found to be sufficient for energy capture. In a single user environment, DS-UWB system has the most superior performance, followed by DS-TH-UWB and TH-UWB systems. And in a multi-user environment, DS-TH-UWB is found to outperform the rest, followed by DS-UWB and TH-UWB systems. | |||||
| 言語 | en | |||||
| 書誌情報 |
en : IEICE transactions on fundamentals of electronics, communications and computer sciences 巻 93, 号 10, p. 1716-1723, 発行日 2010-10 |
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| 出版者 | ||||||
| 出版者 | 電子情報通信学会 | |||||
| 言語 | ja | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0916-8508 | |||||
| 書誌レコードID | ||||||
| 収録物識別子タイプ | NCID | |||||
| 収録物識別子 | AA10826239 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | http://doi.org/10.1587/transfun.e93.a.1716 | |||||
| 権利 | ||||||
| 権利情報 | Copyright (C) 2010 IEICE | |||||
| 権利 | ||||||
| 権利情報 | 本文データは学協会の許諾に基づき電子情報通信学会のサイトから複製したものである | |||||
| 出版タイプ | ||||||
| 出版タイプ | VoR | |||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
| 著者版フラグ | ||||||
| 値 | publisher | |||||
| 異版である | ||||||
| 関連タイプ | isVersionOf | |||||
| 識別子タイプ | URI | |||||
| 関連識別子 | http://search.ieice.org/ | |||||
