| Presentation | 2014-10-30 Optimum Number of Transmit Antennas for STTD in MC-CDMA Distributed Antenna Network(Poster session) Yumeto MORI, Shohei INOSHITA, Hiroyuki MIYAZAKI, Fumiyuki ADACHI, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Distributed antenna network (DAN) can mitigate the problems arising from of the propagation path loss and shadowing loss and achieve better transmission performance over the entire cell area compared to centralized antenna network (CAN). Many transmit antennas are spatially distributed in DAN while they are co-located at the same base station in CAN. The use of space time block coded transmit diversity (STTD) can further improve performance. As the multi-access scheme, multicarrier code division multiple access (MC-CDMA) is attractive since it can alleviate a sophisticated resource allocation while achieving the frequency diversity gain. In this paper, the STTD downlink transmission is considered for MC-CDMA DAN. In STTD downlink, higher spatial antenna diversity gain is obtained by increasing the number of transmit antennas. However, the STTD code rate reduces. Furthermore, since the propagation time delays of signals transmitted from some transmit antennas may exceed the cyclic prefix (CP) length of MC-CDMA, the inter-block interference (IBI) is produced. Therefore, there exist the optimum numbers of transmit antennas to be involved in STTD downlink. In this paper, we derive an expression for the received SINR after de-spreading and evaluate, by computer simulation, the STTD downlink capacity to discuss about the optimum number of transmit antennas. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Distributed antenna network / MC-CDMA / transmit antenna diversity |
| Paper # | SR2014-61 |
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| Committee | SR |
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| Conference Date | 2014/10/23(1days) |
| Place (in Japanese) | (See Japanese page) |
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| Topics (in Japanese) | (See Japanese page) |
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| Registration To | Smart Radio(SR) |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Optimum Number of Transmit Antennas for STTD in MC-CDMA Distributed Antenna Network(Poster session) |
| Sub Title (in English) | |
| Keyword(1) | Distributed antenna network |
| Keyword(2) | MC-CDMA |
| Keyword(3) | transmit antenna diversity |
| 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 | 2014-10-30 |
| Paper # | SR2014-61 |
| Volume (vol) | vol.114 |
| Number (no) | 284 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |