| Presentation | 1998/1/23 OFDM Subchannel Space-Combining Transmission Diversity for TDMA-TDD Broadband Mobile Radio Communications Systems Yoichi Matsumoto, Nobuaki Mochizuki, Masahiro Umehira, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper proposes a transmission diversity (TD) technique combined with orthogonal frequency division multiplex (OFDM) modulation to enhance bit-error-rate (BER) and packet-error-rate (PER) performance in microcell broadband wireless access systems. The proposed TD technique selects the antenna with the anticipated better-channel conditions in a subchannel-by-subchannel manner at the base station (BS). This is carried out based on the quality-measurement results of the signals sent by the personal station (PS). In the subsequent transmission timing from the BS to the PS, each antenna at the BS station transmits the OFDM-modulated signals which only possess the selected subchannel components. Then, the PS receiver receives the space-combined whole subchannel OFDM signal through the one antenna. This technique significantly enhances the BER and PER performance without employing multiple antennas or receivers on the PS side. Also, the proposed technique is effective in reducing the peak power required for the amplifier at the BS. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | OFDM / Subchannel / Space-combining / Transmission diversity / Broadband / Radio communications |
| Paper # | SAT97-121 |
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| Conference Information | |
| Committee | SAT |
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| Conference Date | 1998/1/23(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Satellite Telecommunications (SAT) |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | OFDM Subchannel Space-Combining Transmission Diversity for TDMA-TDD Broadband Mobile Radio Communications Systems |
| Sub Title (in English) | |
| Keyword(1) | OFDM |
| Keyword(2) | Subchannel |
| Keyword(3) | Space-combining |
| Keyword(4) | Transmission diversity |
| Keyword(5) | Broadband |
| Keyword(6) | Radio communications |
| 1st Author's Name | Yoichi Matsumoto |
| 1st Author's Affiliation | NTT Wireless Systems Laboratories() |
| 2nd Author's Name | Nobuaki Mochizuki |
| 2nd Author's Affiliation | NTT Wireless Systems Laboratories |
| 3rd Author's Name | Masahiro Umehira |
| 3rd Author's Affiliation | NTT Wireless Systems Laboratories |
| Date | 1998/1/23 |
| Paper # | SAT97-121 |
| Volume (vol) | vol.97 |
| Number (no) | 487 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |