Title :
Chaos-Based Spreading in DS-UWB Sensor Networks Increases Available Bit Rate
Author :
Cimatti, Giampaolo ; Rovatti, Riccardo ; Setti, Gianluca
Author_Institution :
ALSTOM, Bologna
fDate :
6/1/2007 12:00:00 AM
Abstract :
A chaos-based sequence generation method for reducing multiple access interference in direct sequence ultra-wide-band wireless-sensor networks (WSN) is presented. With this it is possible to increase the expected bit rate (BR) at which each user may transmit given a certain link quality, measured as the signal-to-interference ratio. When compared with traditional random sequences, chaos-based spreading results in a BR increase of up to 20%.
Keywords :
chaotic communication; code division multiple access; interference; spread spectrum communication; ultra wideband communication; wireless sensor networks; DS-CDMA; chaos-based spreading; direct sequence ultra-wide-band wireless-sensor networks; multiple access interference; sequence generation; Bit rate; Chaos; Chaotic communication; Intelligent sensors; Light scattering; Multiaccess communication; Pulse measurements; Pulse modulation; Shape control; Wireless sensor networks;
Journal_Title :
Circuits and Systems I: Regular Papers, IEEE Transactions on
DOI :
10.1109/TCSI.2007.895378
