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Conference Papers Year : 2009

Dynamic precision scaling for low power WCDMA receiver


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.

Dates and versions

inria-00432584 , version 1 (16-11-2009)



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, ⟨10.1109/ISCAS.2009.5117721⟩. ⟨inria-00432584⟩
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