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アイテム
Characteristics of interference between direct-sequence systems and frequency-hopping systems of 2.4-GHz-band mid-speed wireless LANs
http://hdl.handle.net/10228/1522
http://hdl.handle.net/10228/152268a7d094-f38c-4a17-b2af-fbc8be264ae0
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
kuwabara_15.pdf (542.9 kB)
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| アイテムタイプ | 学術雑誌論文 = Journal Article(1) | |||||
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| 公開日 | 2009-02-20 | |||||
| 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 | |||||
| タイトル | ||||||
| タイトル | Characteristics of interference between direct-sequence systems and frequency-hopping systems of 2.4-GHz-band mid-speed wireless LANs | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 著者 |
Takaya, K
× Takaya, K× Maeda, Y× 桑原, 伸夫 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | 2.4-GHz-band mid-speed(1- to 2-Mbit/sec) wireless LAN systems are being widely used in offices and factories. Electromagnetic interference Mn occur between these systems because they use the same frequency range. In this paper, we investigate the chancteristics of the interference between wireless LAN systems that use direct-sequence (DS) systems and frequency-hopping (FH) systems. The interference characteristics were measured for three DS systems and one FH system that meet the IEEE 802.11 and RCR standards and that use different modulation methods. Our results indicate that throughput depends on the system and the modulation method. We have also developed a model that can be used to calculate the interference characteristics between DS and FH systems by considering the bandwidth of their transmission signals, the dwell time of the FH system, and the time that the DS system needs to transmit a data frame. We used this model to calculate the bit error rate (BER) characteristics of the systems used in our experiment. and the results indicate that BER characteristics depend on the modulation method. The throughput characteristics of the systems used in our experiment were also calculated, and agreed with the experiment results within +/- 5 dB. The throughput characteristics of wireless LAN systems based on IEEE 802.11 were also calculated when the signal level was higher than the receiver noise level. The results show that FH systems require a D/U ratio about 7 or 8 dB higher than the ratio required in DS systems because the parameters in the standard differ between FH and DS systems. | |||||
| 言語 | en | |||||
| 書誌情報 |
en : IEICE Transactions on Communications 巻 E84-B, 号 2, p. 204-212, 発行日 2001-02-01 |
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| 出版社 | ||||||
| 出版者 | 電子情報通信学会 | |||||
| 言語 | ja | |||||
| NCID | ||||||
| 収録物識別子タイプ | NCID | |||||
| 収録物識別子 | AA10826261 | |||||
| ISSN | ||||||
| 収録物識別子タイプ | PISSN | |||||
| 収録物識別子 | 0916-8516 | |||||
| ISSN | ||||||
| 収録物識別子タイプ | EISSN | |||||
| 収録物識別子 | 1745-1345 | |||||
| 著作権関連情報 | ||||||
| 権利情報 | 社団法人電子情報通信学会 | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | 2.4-GHz-band mid-speed wireless LAN | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | interference | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | direct-sequence | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | frequency-hopping | |||||
| 出版タイプ | ||||||
| 出版タイプ | VoR | |||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
| 査読の有無 | ||||||
| 値 | yes | |||||
| 業績ID | ||||||
| 値 | 1C66846C0FDF84A449257563001BA3F9 | |||||
