NDLI: Wideband TDMA/CDMA terminal modem for broadband satellite multimedia

Content Provider	IEEE Xplore Digital Library
Author	Bourdoux, A. Wouters, M. Engels, M. Gyselinckx, B.
Copyright Year	2000
Description	Author affiliation: Interuniv. Micro Electron. Centre, IMEC, Leuven, Belgium (Bourdoux, A.)
Abstract	The time division multiplex/multiple access (TDM/TDMA) scheme has been until now the dominant multiplex/multiple access scheme in satellite communications while code division multiple access (CDMA) is still viewed as too complex and not sufficiently mature by many system designers, specially for high data rate systems. Nevertheless, the high flexibility of CDMA makes it attractive for future broadband satellite multimedia (BSM) systems. Realistic satellite communication systems require a careful system analysis to exploit the potential of CDMA at its best. In this paper, we describe a system concept for BSM relying on a hybrid code and time division multiple access technique and show that the fundamental argument against CDMA, namely receiver complexity, can be overcome. We describe how this system concept can be translated into an efficient modem architecture. We focus on the most critical part-the digital demodulator-that must be capable to sustain a user bit rate in excess of 20 Mbit/s. The main challenges of such demodulator design lie in fast synchronisation, operation at low E/sub b//N/sub 0/, low implementation loss and the complex rate conversion and buffering requirements.
Starting Page	496
Ending Page	500
File Size	489971
Page Count	5
File Format	PDF
ISBN	0780365607
DOI	10.1109/ISSSTA.2000.876483
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2000-09-06
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wideband Time division multiple access Multiaccess communication Modems Time division multiplexing Demodulation Low earth orbit satellites Multimedia systems Satellite communication Web and internet services
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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