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Dynamic precision scaling for low power WCDMA receiver
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
https://hal.inria.fr/inria-00432584
Contributor : Daniel Menard <>
Submitted on : Monday, November 16, 2009 - 4:34:55 PM
Last modification on : Friday, July 10, 2020 - 4:25:45 PM
Contributor : Daniel Menard <>
Submitted on : Monday, November 16, 2009 - 4:34:55 PM
Last modification on : Friday, July 10, 2020 - 4:25:45 PM
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