| Presentation | 2002/10/3 A Study on Improvement of Service Availability of the 21-GHz Band Satellite Broadcasting using the Storage Reception Akinori HASHIMOTO, Raita YAMASAKI, Masashi KAMEI, Hitoshi NAKAGAWA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The 21-GHz band, which has a 600-MHz bandwidth, will be available for satellite broadcasting from 2007. However, since rain attenuation in the 21-GHz band is much larger than that in the 12-GHz band, powerful countermeasures to improve service availability are ardently desired. Consequently, we are studying broadcasting systems equipped with storage devices to overcome the effects of such heavy rain attenuation in the 21-GHz band. We compare the performances of two systems, i.e., the time diversity scheme and the so-called "long block length interleave transmission scheme" proposed by us. Based on the obtained simulation results, we show suitable applications for the two systems. Finally, we describe a prototype apparatus that was designed and fabricated to verify effectiveness of the long block-length interleave scheme. In the apparatus, we used HDDs (hard disk drives) as storage devices. Since HDDs are not suitable for random access, such as interleaving, we invented "a double-stage interleave method". The successful demonstration of the apparatus using the method is reported. |
| Keyword(in Japanese) | (See Japanese page) |
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| Paper # | SAT2002-68 |
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| Committee | SAT |
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| Conference Date | 2002/10/3(1days) |
| Place (in Japanese) | (See Japanese page) |
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| 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) | A Study on Improvement of Service Availability of the 21-GHz Band Satellite Broadcasting using the Storage Reception |
| Sub Title (in English) | |
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| 1st Author's Name | Akinori HASHIMOTO |
| 1st Author's Affiliation | Science & Technical Research Laboratories, Japan Broadcasting Corporation (NHK)() |
| 2nd Author's Name | Raita YAMASAKI |
| 2nd Author's Affiliation | Science & Technical Research Laboratories, Japan Broadcasting Corporation (NHK) |
| 3rd Author's Name | Masashi KAMEI |
| 3rd Author's Affiliation | Science & Technical Research Laboratories, Japan Broadcasting Corporation (NHK) |
| 4th Author's Name | Hitoshi NAKAGAWA |
| 4th Author's Affiliation | Science & Technical Research Laboratories, Japan Broadcasting Corporation (NHK) |
| Date | 2002/10/3 |
| Paper # | SAT2002-68 |
| Volume (vol) | vol.102 |
| Number (no) | 359 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |