| Presentation | 2007/10/25 Design of spectrum spreading technique applied to DVB-S2(Coding Technology) Pansoo Kim, Dae-Ig Chang, Ho-Jin Lee, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Spectrum spreading, in its general form, can be conceived as an artificial expansion of the signal bandwidth with respect to the minimum Nyquist band required to transmit the desired information. Spreading can be functional to several objectives, including resilience to interference and jammers and reduction of power spectral density levels. In the paper, signal spreading is manly used for increasing the received energy, thus satisfying link budget constraints, for terminals with low aperture antennas, without increasing the transmitted EIRP. As a matter of fact, in many mobile scenarios, even when MODCOD configurations with very low spectral efficiency (i.e. QPSK-1/4) in DVB-S2 standard, are used, the link budget cannot be closed. Spectrum spreading has been recently proposed as a technique to improve system performance without introducing additional MODCOD configurations under the constraint of fixed power spectrum density level at the transmitter side. To this aim, the design of spectrum spreading techniques shall keep into consideration requirements such as spectrum mask, physical layer performance, link budget, hardware reuse, robustness, complexity, and backward compliance with existing commercial equipments. The proposed implementation allows to fully reuse the standard DVB-S2 circuitry and is inserted as an 'inner layer' in the standard DVB-S2 chain. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | DVB-S2 / mobile environment / spectrum spreading / DS (Direct Sequence) technique / interference mitigation |
| Paper # | SAT2007-28 |
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| Conference Information | |
| Committee | SAT |
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| Conference Date | 2007/10/25(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| 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) | Design of spectrum spreading technique applied to DVB-S2(Coding Technology) |
| Sub Title (in English) | |
| Keyword(1) | DVB-S2 |
| Keyword(2) | mobile environment |
| Keyword(3) | spectrum spreading |
| Keyword(4) | DS (Direct Sequence) technique |
| Keyword(5) | interference mitigation |
| 1st Author's Name | Pansoo Kim |
| 1st Author's Affiliation | Radio & Broadband Research Division, ETRI() |
| 2nd Author's Name | Dae-Ig Chang |
| 2nd Author's Affiliation | Radio & Broadband Research Division, ETRI |
| 3rd Author's Name | Ho-Jin Lee |
| 3rd Author's Affiliation | Radio & Broadband Research Division, ETRI |
| Date | 2007/10/25 |
| Paper # | SAT2007-28 |
| Volume (vol) | vol.107 |
| Number (no) | 299 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |