Dynamic precision scaling for low power WCDMA receiver

Hai Nam Nguyen 1 Daniel Menard 1 Olivier Sentieys 1
1 CAIRN - Energy Efficient Computing ArchItectures with Embedded Reconfigurable Resources
Inria Rennes – Bretagne Atlantique , IRISA-D3 - ARCHITECTURE
Abstract : One of the most important applications of digital signal processing (DSP) is wireless communication. This kind of application requires low power implementation of DSP, which generally uses fixed-point arithmetic. The fixed-point architectures should be developed to maintain the energy consumption power at a reasonable level. In this paper, an approach which adapts the fixed-point specification according to the input receiver signal-to-noise ratio (SNR) is proposed. To underline our approach interest, the rake receiver of a WCDMA receiver is examined. Results show about 25% - 40% energy savings with our dynamic precision approach.
Keywords : code division multiple access digital signal processing chips fixed point arithmetic low-power electronics radio receiversdigital signal processing dynamic precision scaling energy consumption energy saving fixed-point arithmetic input receiver signal-to-noise ratio low power WCDMA receiver power consumption wideband code division multiple access wireless communication
Type de document :
Communication dans un congrès
IEEE International Symposium on Circuits and Systems, 2009. ISCAS 2009, May 2009, Taipei, Taiwan. pp.205-208, 2009, 〈10.1109/ISCAS.2009.5117721〉
Liste complète des métadonnées
https://hal.inria.fr/inria-00432584
Contributeur : Daniel Menard <>
Soumis le : lundi 16 novembre 2009 - 16:34:55
Dernière modification le : jeudi 15 novembre 2018 - 11:57:39

Identifiants

Collections

INRIA | IRISA | IRISA-D3 | UR1-UFR-ISTIC | UNIV-RENNES

Citation

Hai Nam Nguyen, Daniel Menard, Olivier Sentieys. Dynamic precision scaling for low power WCDMA receiver. IEEE International Symposium on Circuits and Systems, 2009. ISCAS 2009, May 2009, Taipei, Taiwan. pp.205-208, 2009, 〈10.1109/ISCAS.2009.5117721〉. 〈inria-00432584〉

Exporter

BibTeX TEI DC DCterms EndNote

Partager

Métriques

Consultations de la notice

368

Contact


archive-ouverte@inria.fr