A chaos-based sequence generation method for reducing multiple access interference (MAI) in direct sequence UWB wireless-sensor-networks (WSNs) is presented, along with the schematic design in CMOS UMC130 1.2V technology of a modulator scheme, that takes into account both the transmitter and receiver antennas. Chaos-based spreading is numerically optimized to combine with the pulse profile (as obtained by extensive simulations) and maximizing the bit-rate (BR) at which each user may transmit given a certain link quality, measured as the signal-to-interference ratio (SIR); when compared with traditional random sequences, the BR increase is up to 30%.

Joint Design of a DS-UWB Modulator and Chaos-Based Spreading Sequences for Sensor Networks

DE MICHELE, LUCA ANTONIO;CIMATTI, GIAMPAOLO;ROVATTI, RICCARDO;
2007

Abstract

A chaos-based sequence generation method for reducing multiple access interference (MAI) in direct sequence UWB wireless-sensor-networks (WSNs) is presented, along with the schematic design in CMOS UMC130 1.2V technology of a modulator scheme, that takes into account both the transmitter and receiver antennas. Chaos-based spreading is numerically optimized to combine with the pulse profile (as obtained by extensive simulations) and maximizing the bit-rate (BR) at which each user may transmit given a certain link quality, measured as the signal-to-interference ratio (SIR); when compared with traditional random sequences, the BR increase is up to 30%.
Circuits and Systems, 2007. ISCAS 2007. IEEE International Symposium on
1441
1444
L. De Michele; G. cimatti; R. Rovatti; G. Setti
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11585/49331
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