NDLI: Radio transmitter architecture with all-digital modulator for opportunistic radio and modern wireless terminals

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Radio transmitter architecture with all-digital modulator for opportunistic radio and modern wireless terminals

Content Provider	IEEE Xplore Digital Library
Author	Wurm, P. Shirakawa, A.A.
Copyright Year	2008
Description	Author affiliation: MINATEC, CEA/Leti, Grenoble (Wurm, P.)
Abstract	This paper presents a new concept of transmitter architecture based on a fully digital circuit featuring a radiofrequency modulator. The RF transmitter under study shall offer enough flexibility and reconfigurability to take up the challenges of "opportunistic radio" and the so-called opportunistic terminals must be able to transmit context dependent waveforms in licensed and unlicensed bands. This appears more achievable with an all-digital transmitter, possibly implemented in CMOS technology. This digital circuit will provide means for generating various modulations, over-sampling signals, shaping the noise, modulating low resolution signals onto the transmit channel, and converting it to analogue. It is also associated with very selective analogue BAW-CRFfilters that highly reject the noise outside the transmit band. The proposed arrangement successfully combines the advantages of programmability, avoidance of all analogue variables (temperature, component, frequency and process variations), high selectivity and flexibility.
Starting Page	1
Ending Page	4
File Size	230531
Page Count	4
File Format	PDF
ISBN	9781424421398
DOI	10.1109/COGART.2008.4509984
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-02-14
Publisher Place	Denmark
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Digital modulation Radio transmitters Transmitter Noise shaping Noise generators noise shaping Digital circuits Signal resolution Radio frequency sigma delta modulator opportunistic radio CMOS technology Signal generators reconfigurability Circuit noise BAWCRF filter
Content Type	Text
Resource Type	Article

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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
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