Presentation 2002/10/4
An Architecture of Group MODEM with Timesharing Processing for Satellite Communication Networks
Kazuhiro TANABE, Yuichi SAGAWA, Kiyoshi KOBAYASHI, Kohei OHATA, Masazumi UEBA,
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Abstract(in English) A satellite communication system for a mesh type network must support many multi-point connections simultaneously, and allocate satellite channels with the required data rates to support each connection independently. The conventional approach is excessively expensive since it forces the earth station to have one single carrier modem for each connection. To eliminate this problem, we introduce the Multicarrier/Multirate Group MODEM for earth stations. This new MODEM is implemented as a single LSI chip. The current version supports up to 128 communication channels simultaneously, and the bandwidth of each communication channel can be set individually. This paper describes the architecture and processing method of the modem and proposes an algorithm that decreases buffer circuit so as to reduce circuit size. Performance evaluation results are shown.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Multicarrier / Multirate / Timesharing Processing / Modulation/Demodulation / Filter Bank
Paper # SAT2002-71
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Committee SAT
Conference Date 2002/10/4(1days)
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Registration To Satellite Telecommunications (SAT)
Language ENG
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) An Architecture of Group MODEM with Timesharing Processing for Satellite Communication Networks
Sub Title (in English)
Keyword(1) Multicarrier
Keyword(2) Multirate
Keyword(3) Timesharing Processing
Keyword(4) Modulation/Demodulation
Keyword(5) Filter Bank
1st Author's Name Kazuhiro TANABE
1st Author's Affiliation NTT Network Innovation Laboratories, NTT Corporation()
2nd Author's Name Yuichi SAGAWA
2nd Author's Affiliation NTT Network Innovation Laboratories, NTT Corporation
3rd Author's Name Kiyoshi KOBAYASHI
3rd Author's Affiliation NTT Advanced Technology Corporation
4th Author's Name Kohei OHATA
4th Author's Affiliation NTT Network Innovation Laboratories, NTT Corporation
5th Author's Name Masazumi UEBA
5th Author's Affiliation NTT Network Innovation Laboratories, NTT Corporation
Date 2002/10/4
Paper # SAT2002-71
Volume (vol) vol.102
Number (no) 360
Page pp.pp.-
#Pages 6
Date of Issue