| Presentation | 2013-02-28 A Study of Efficient Spectrum Utilization Using Wideband Non-contiguous OFDM Riichiro NAGAREDA, Akio HASEGAWA, Tatsuo SHIBATA, Masayoshi OHASHI, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Recently the demand of the mobile communication traffic increases rapidly. In order to deal with this demand, it is required the utilization of frequency bands which have not been used yet. However, sufficiently large bandwidth is difficult to be assigned under 1 GHz which is suitable for wide-area wireless communications. Therefore, the schemes, which gather unused frequency bands fluctuated in time and frequency domains, have been studied Non-Contiguous OFDM (Orthogonal Frequency Division Multiplexing) assigns subcarriers not to inter-fere with signals of other existing systems. This paper proposes Wideband Non-contiguous OFDM (WNC-OFDM) which can use the unused bands of VHF and UHF in a lump, because WNC-OFDM executes Fast Fourier Transform (FFT) and Inverse FFT (IFFT) to the wide frequency band. This paper discusses problems of WNC-OFDM and suggests solutions for the problems. The paper also shows the results of computer simulations for clarifying the fundamental characteristics of WNC-OFDM. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Cognitive Radio / Dynamic Spectrum Access / Non-Contiguous OFDM |
| Paper # | SR2012-100 |
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| Conference Information | |
| Committee | SR |
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| Conference Date | 2013/2/20(1days) |
| Place (in Japanese) | (See Japanese page) |
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| Topics (in Japanese) | (See Japanese page) |
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| Registration To | Software Radio(SR) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Study of Efficient Spectrum Utilization Using Wideband Non-contiguous OFDM |
| Sub Title (in English) | |
| Keyword(1) | Cognitive Radio |
| Keyword(2) | Dynamic Spectrum Access |
| Keyword(3) | Non-Contiguous OFDM |
| 1st Author's Name | Riichiro NAGAREDA |
| 1st Author's Affiliation | Advanced Telecommunications Research Institute International() |
| 2nd Author's Name | Akio HASEGAWA |
| 2nd Author's Affiliation | Advanced Telecommunications Research Institute International |
| 3rd Author's Name | Tatsuo SHIBATA |
| 3rd Author's Affiliation | Advanced Telecommunications Research Institute International |
| 4th Author's Name | Masayoshi OHASHI |
| 4th Author's Affiliation | Advanced Telecommunications Research Institute International |
| Date | 2013-02-28 |
| Paper # | SR2012-100 |
| Volume (vol) | vol.112 |
| Number (no) | 444 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |