| Presentation | 2000/2/18 A Study on Uplink Access Scheme for Asymmetric Radio Communication Systems using OFDM Technique Yasunori MATSUI, Seiichi SAMPEI, Norihiko MORINAGA, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper proposes an orthogonal frequency division multiple access / time division duplex(OFDMA / TDD) based asymmetric wireless access scheme to support wireless multimedia communication services. In the proposed system, radio of the downlink and uplink radio resource is adaptively controlled according to the traffic conditions. As the access scheme for the uplink, the proposed scheme employs OFDMA in which a certain number of OFDM subcarriers are randomly selected, where one of them are used to transmit information for the selected subcarriers and the others are used for message transmission. Subcarriers transmitted by the same terminal are demodulated using FFT. On the other hand, the inter-subcarrier interference between terminals is mitigated by packet retransmission because such interference can be regard as a kind of packet collision. Computer simulation confirms that the proposed system achieves good average delay preformances. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | OFDM / asymmetric radio communication systems / packet transmission / offset frequency / timing jitter |
| Paper # | SST99-89,ITS99-85,A・P99-211,RCS99-231,MW99-251 |
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| Conference Information | |
| Committee | ITS |
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| Conference Date | 2000/2/18(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Intelligent Transport Systems Technology (ITS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Study on Uplink Access Scheme for Asymmetric Radio Communication Systems using OFDM Technique |
| Sub Title (in English) | |
| Keyword(1) | OFDM |
| Keyword(2) | asymmetric radio communication systems |
| Keyword(3) | packet transmission |
| Keyword(4) | offset frequency |
| Keyword(5) | timing jitter |
| 1st Author's Name | Yasunori MATSUI |
| 1st Author's Affiliation | Graduate School of Engineering, Osaka University() |
| 2nd Author's Name | Seiichi SAMPEI |
| 2nd Author's Affiliation | Graduate School of Engineering, Osaka University |
| 3rd Author's Name | Norihiko MORINAGA |
| 3rd Author's Affiliation | Graduate School of Engineering, Osaka University |
| Date | 2000/2/18 |
| Paper # | SST99-89,ITS99-85,A・P99-211,RCS99-231,MW99-251 |
| Volume (vol) | vol.99 |
| Number (no) | 632 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |