| Presentation | 2008/10/30 New Techniques to Reduce Out-of-Band Radiations in OFDM System to Design a Successful Spectrum Sharing Systems(System Engineering-I) Saleem Ahmed, Razi Ur Rehman, Abdul Sattar, Dileep Kumar, Humor Hwang, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In orthogonal frequency division multiplexing (OFDM) systems the reduction of out-of-band radiations is an essential topic. To design a successful OFDM based overlay systems, it is important to reduce the sidelobes in OFDM systems. In this paper, we consider three approaches: Subcarrier weighting (SW) which is based on the multiplication of the used subcarriers with real-valued weighting factors, second approach we consider is multiple choice sequence (MCS) which is based on producing set of sequences and selecting the one sequence which has lowest power in sidelobes and third approach we consider is the conventional windowing of OFDM signal in time domain. We combine MCS with windowing technique and SW with windowing technique. Simulation results show that by combining MCS with windowing technique and SW with windowing technique, the out-of-band radiations in OFDM system can be significantly suppressed. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | orthogonal frequency division multiplexing (OFDM) / out-of-band radiations / sidelobe suppression |
| Paper # | SAT2008-34 |
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| Committee | SAT |
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| Conference Date | 2008/10/30(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| 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) | New Techniques to Reduce Out-of-Band Radiations in OFDM System to Design a Successful Spectrum Sharing Systems(System Engineering-I) |
| Sub Title (in English) | |
| Keyword(1) | orthogonal frequency division multiplexing (OFDM) |
| Keyword(2) | out-of-band radiations |
| Keyword(3) | sidelobe suppression |
| 1st Author's Name | Saleem Ahmed |
| 1st Author's Affiliation | Department of Electronics and Communication Engineering, Myongji University:Department of Software Engineering, Myongji University() |
| 2nd Author's Name | Razi Ur Rehman |
| 2nd Author's Affiliation | Department of Electronics and Communication Engineering, Myongji University:Department of Software Engineering, Myongji University |
| 3rd Author's Name | Abdul Sattar |
| 3rd Author's Affiliation | Department of Electronics and Communication Engineering, Myongji University:Department of Software Engineering, Myongji University |
| 4th Author's Name | Dileep Kumar |
| 4th Author's Affiliation | Myongji Univ. |
| 5th Author's Name | Humor Hwang |
| 5th Author's Affiliation | Department of Electronics and Communication Engineering, Myongji University:Department of Software Engineering, Myongji University |
| Date | 2008/10/30 |
| Paper # | SAT2008-34 |
| Volume (vol) | vol.108 |
| Number (no) | 274 |
| Page | pp.pp.- |
| #Pages | 7 |
| Date of Issue | |