| Presentation | 2002/8/22 Long-span Quasi-MM Wave Band FWA Systems Employing Link Adaptation by Symbol Rate Mitsutoshi MATSUDA, Kazuji WATANABE, |
|---|---|
| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Quasi-mm-wave FWA systems are suitable for broadband communication rather than 2.4GHz and 5 GHz band FWA systems. However, it is unsuitable for long-span communications because the effect of rain attenuation is severer. In this paper, we propose link adaptation method which varies symbol rate according to rainfall. When it rains, the proposed system applies slow symbol rate, which increases rain attenuation margin. Therefore, connection abort of TCP due to rainfall can be avoided. The proposed method expands radius of service area twice larger in case study in Tokyo metropolitan area. It is also clarified that the proposed method deserves practical use from the view point of transmission speed. It almost keeps average transmission speed because the duration of slow symbol rate is less than 1%. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | quasi-mm-wave band / FWA / rain attenuation / downtime / symbol rate / adaptive modulation |
| Paper # | RCS2002-141 |
| Date of Issue |
| Conference Information | |
| Committee | RCS |
|---|---|
| Conference Date | 2002/8/22(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
| Assistant | |
| Paper Information | |
| Registration To | Radio Communication Systems (RCS) |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Long-span Quasi-MM Wave Band FWA Systems Employing Link Adaptation by Symbol Rate |
| Sub Title (in English) | |
| Keyword(1) | quasi-mm-wave band |
| Keyword(2) | FWA |
| Keyword(3) | rain attenuation |
| Keyword(4) | downtime |
| Keyword(5) | symbol rate |
| Keyword(6) | adaptive modulation |
| 1st Author's Name | Mitsutoshi MATSUDA |
| 1st Author's Affiliation | NTT Access Network Service Systems Laboratories, NTT Corporation() |
| 2nd Author's Name | Kazuji WATANABE |
| 2nd Author's Affiliation | NTT Access Network Service Systems Laboratories, NTT Corporation |
| Date | 2002/8/22 |
| Paper # | RCS2002-141 |
| Volume (vol) | vol.102 |
| Number (no) | 281 |
| Page | pp.pp.- |
| #Pages | 5 |
| Date of Issue | |