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%

Chaos-Based Generation of Optimal Spreading Sequences for UWB Applications

SETTI, Gianluca
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%
2007
DS-UWB; Chaos-based Spreading; Pulse Generation; Spectrum Shaping
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11392/472539
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