| Presentation | 2015-03-06 Adaptive 2-Dimensional Block Spreading for Downlink MC-CDMA Distributed Antenna Network Yumeto MORI, Shohei INOSHITA, Hiroyuki MIYAZAKI, Fumiyuki ADACHI, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this paper, we study in order to apply the multi-carrier code division multiple access (MC-CDMA) and 2-dimensional block spreading (2D-BS) to distributed antenna network. In 2D-BS, many users can be orthogonalized by increasing time domain block spreading factor. However, frequency diversity gain decreases as the time-domain block spreading factor. Therefore, the optimal time domain block spreading factor is different due to the number of access users. In DAN, particularly, the optimal time domain block spreading factor should be different among distributed antennas because the number of access users is different among distributed antennas. In this paper, we discuss adaptive 2D-BS for downlink DAN using MC-CDMA. In the adaptive 2D-BS, each distributed antenna determines the time-domain block spreading factor as the number of own access users. We investigate, by computer simulation, downlink capacity of the MC-CDMA DAN using adaptive 2D-BS and show that the adaptive 2D-BS can achieve larger link capacity than the use of common 2D-BS over a cell. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Distributed antenna network / MC-CDMA / Spreading codes |
| Paper # | RCS2014-353 |
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| Committee | RCS |
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| Conference Date | 2015/2/25(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Radio Communication Systems (RCS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Adaptive 2-Dimensional Block Spreading for Downlink MC-CDMA Distributed Antenna Network |
| Sub Title (in English) | |
| Keyword(1) | Distributed antenna network |
| Keyword(2) | MC-CDMA |
| Keyword(3) | Spreading codes |
| 1st Author's Name | Yumeto MORI |
| 1st Author's Affiliation | Department of Communications Engineering, Graduate School of Engineering, Tohoku University() |
| 2nd Author's Name | Shohei INOSHITA |
| 2nd Author's Affiliation | Department of Communications Engineering, Graduate School of Engineering, Tohoku University |
| 3rd Author's Name | Hiroyuki MIYAZAKI |
| 3rd Author's Affiliation | Department of Communications Engineering, Graduate School of Engineering, Tohoku University |
| 4th Author's Name | Fumiyuki ADACHI |
| 4th Author's Affiliation | Department of Communications Engineering, Graduate School of Engineering, Tohoku University |
| Date | 2015-03-06 |
| Paper # | RCS2014-353 |
| Volume (vol) | vol.114 |
| Number (no) | 490 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |