Presentation | 2007-04-20 Hyper-Multipoint Data Gatherig Satellite Communication Systems for Safe and Secure Society Kohei OHATA, Satoshi HARADA, Katsuya NAKAHIRA, Yutaka IMAIZUMI, Kiyoshi KOBAYASHI, Hiroshi KAZAMA, |
---|---|
PDF Download Page | PDF download Page Link |
Abstract(in Japanese) | (See Japanese page) |
Abstract(in English) | The need of nation-wide consolidated sensor network systems that gather every sort of environmental observation data such as meteorological observation, tectonic movements, tide level, water level and etc. NTT has proposed "Hyper-Multipoint data gathering satellite communication systems" as the sensor network system taking into account the merit of satellite communication network of disaster-resistant, wide-area covering and portability. In this report, we propose and evaluated enabling core technology for the system i.e., hyper multiple access control that handle data transmission from tens of thousands of observation earth station with efficient frequency utilization technique, ultra accurate and stable local oscillator technology that enable gapless FDMA channel allocations and Multi-rate Group-modem technology that enables de-modulate several hundred of carriers of arbitrary bandwidth and frequency. |
Keyword(in Japanese) | (See Japanese page) |
Keyword(in English) | Satellite communication / sensor network / access control / group modem |
Paper # | SAT2007-3 |
Date of Issue |
Conference Information | |
Committee | SAT |
---|---|
Conference Date | 2007/4/13(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 | Satellite Telecommunications (SAT) |
---|---|
Language | JPN |
Title (in Japanese) | (See Japanese page) |
Sub Title (in Japanese) | (See Japanese page) |
Title (in English) | Hyper-Multipoint Data Gatherig Satellite Communication Systems for Safe and Secure Society |
Sub Title (in English) | |
Keyword(1) | Satellite communication |
Keyword(2) | sensor network |
Keyword(3) | access control |
Keyword(4) | group modem |
1st Author's Name | Kohei OHATA |
1st Author's Affiliation | NTT Access Network Service Systems Laboratories NTT Corporation() |
2nd Author's Name | Satoshi HARADA |
2nd Author's Affiliation | NTT Access Network Service Systems Laboratories NTT Corporation |
3rd Author's Name | Katsuya NAKAHIRA |
3rd Author's Affiliation | NTT Access Network Service Systems Laboratories NTT Corporation |
4th Author's Name | Yutaka IMAIZUMI |
4th Author's Affiliation | NTT Access Network Service Systems Laboratories NTT Corporation |
5th Author's Name | Kiyoshi KOBAYASHI |
5th Author's Affiliation | NTT Access Network Service Systems Laboratories NTT Corporation |
6th Author's Name | Hiroshi KAZAMA |
6th Author's Affiliation | NTT Access Network Service Systems Laboratories NTT Corporation |
Date | 2007-04-20 |
Paper # | SAT2007-3 |
Volume (vol) | vol.107 |
Number (no) | 11 |
Page | pp.pp.- |
#Pages | 6 |
Date of Issue |