| Presentation | 2001/7/12 Coupling interference reduction system using adaptive array antenna in SFN repeater Masashige SHIRAKABE, Takeo FUJII, Masao NAKAGAWA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Recently, wireless communications are expanded rapidly. The main stream of wireless communication is shifted from speech information to data information in these days. This kind of data communications needs more frequency resources with higher quality and higher data rate. To realize such data communication networks, it is necessary to increase the efficiency of frequency usage. As one of the solution for improving the frequency usage, single frequency network (SFN) has been proposed. To efficiently establish the SFN, the same frequency repeater is useful because the wired networks between base stations is not needed and the support, area can be expanded with low cost. However SFN repeater has a problem that the transmitting signals are coupled in the receiver of the repeater. This coupling makes the performance of output signals of the repeater and some times causes oscillation, that is the communication can not be established. In this paper, to avoid such coupling signals, we propose a method using adaptive array antenna at the transmitter side and the receiver side of the SFN repeater for an indoor wireless system for repeating the signals from outdoor networks. The performance of the proposed system is evaluated using the computer simulation. We discuss the effectiveness of the proposed system against to the coupling signals in SFN repeater system. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Single Frequency Network / Adaptive Array Antenna / RLS algorithm |
| Paper # | NS2001-84,RCS2001-85 |
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| Conference Information | |
| Committee | NS |
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| Conference Date | 2001/7/12(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Network Systems(NS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Coupling interference reduction system using adaptive array antenna in SFN repeater |
| Sub Title (in English) | |
| Keyword(1) | Single Frequency Network |
| Keyword(2) | Adaptive Array Antenna |
| Keyword(3) | RLS algorithm |
| 1st Author's Name | Masashige SHIRAKABE |
| 1st Author's Affiliation | Department of Information and Computer Science, Faculty of Science and Technology, Keio University() |
| 2nd Author's Name | Takeo FUJII |
| 2nd Author's Affiliation | Department of Information and Computer Science, Faculty of Science and Technology, Keio University |
| 3rd Author's Name | Masao NAKAGAWA |
| 3rd Author's Affiliation | Department of Information and Computer Science, Faculty of Science and Technology, Keio University |
| Date | 2001/7/12 |
| Paper # | NS2001-84,RCS2001-85 |
| Volume (vol) | vol.101 |
| Number (no) | 195 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |