| Presentation | 2005-03-15 A low-complexity algorithm for subcarrier allocation in multi-user OFDM systems Yoshiyuki OHTANI, Syuichi OHNO, Takao HINAMOTO, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In a single user OFDM (Orthogonal Frequency Division Multiplexing) system, adaptive modulation schemes can be applied to each subcarrier according to the subcarrier gain, to enhance the system performance. On the other hand, in a multiuser OFDM system, the adaptive modulation schemes after allocating the subcarriers to each user improve the bit rate and the bit error rate of the system. In this paper, we propose two low-complexity algorithms that allocate the subcarriers as fairly as possible to maximize the total bit rate under a bit error rate requirement. Numerical examples are provided to compare the proposed algorithms with existing ones and to evaluate their performances. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | OFDM / adaptive modulation / bit rate / bit loading |
| Paper # | CAS2004-115,SIP2004-158,CS2004-251 |
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| Conference Information | |
| Committee | SIP |
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| Conference Date | 2005/3/8(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Registration To | Signal Processing (SIP) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A low-complexity algorithm for subcarrier allocation in multi-user OFDM systems |
| Sub Title (in English) | |
| Keyword(1) | OFDM |
| Keyword(2) | adaptive modulation |
| Keyword(3) | bit rate |
| Keyword(4) | bit loading |
| 1st Author's Name | Yoshiyuki OHTANI |
| 1st Author's Affiliation | Graduate School of Engineering Hiroshima University() |
| 2nd Author's Name | Syuichi OHNO |
| 2nd Author's Affiliation | Graduate School of Engineering Hiroshima University |
| 3rd Author's Name | Takao HINAMOTO |
| 3rd Author's Affiliation | Graduate School of Engineering Hiroshima University |
| Date | 2005-03-15 |
| Paper # | CAS2004-115,SIP2004-158,CS2004-251 |
| Volume (vol) | vol.104 |
| Number (no) | 719 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |