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On the Implementation of a Probabilistic Equalizer for Low-Cost Impulse Radio UWB in High Data Rate

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Author(s): Sami MEKKI | Jean-Luc DANGER | Benoit MISCOPEIN

Journal: Wireless Sensor Network
ISSN 1945-3078

Volume: 01;
Issue: 04;
Start page: 245;
Date: 2009;
Original page

Keywords: Impulse Radio Ultra-Wideband | Probabilistic Energy Equalizer | Inter-Symbol Interference | Chi-Squared

ABSTRACT
This paper treats the digital design of a probabilistic energy equalizer for impulse radio (IR) UWB receiver in high data rate (100Mbps). The aim of this study is to bypass certain complex mathematical function as a chi-squared distribution and reduce the computational complexity of the equalizer for a low cost hardware implementation. As in Sub-MAP algorithm, the max* operation is investigated for complexity reduction and tested by computer simulation with fixed point data types under 802.15.3a channel models. The obtained re-sults prove that the complexity reduction involves a very slight algorithm deterioration and still meet the low-cost constraint of the implementation.
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