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Novel approach of UWB multi-band system based on orthogonal function for transports applications

Published online by Cambridge University Press:  22 February 2011

F. Elbahhar ,
A. Lamari ,
A. Rivenq ,
J. M. Rouvaen ,
M. Heddebaut ,
T. Boukour  and
L. Sakkila
F. Elbahhar*
Affiliation:
INRETS, LEOST, 59666 Villeneuve d'Ascq, France
A. Lamari
Affiliation:
UVHC, IEMN-DOAE, 59313 Valenciennes, France
A. Rivenq
Affiliation:
UVHC, IEMN-DOAE, 59313 Valenciennes, France
J. M. Rouvaen
Affiliation:
UVHC, IEMN-DOAE, 59313 Valenciennes, France
M. Heddebaut
Affiliation:
INRETS, LEOST, 59666 Villeneuve d'Ascq, France
T. Boukour
Affiliation:
E-BLINK, 91800 Boussy-Saint-Antoine, France
L. Sakkila
Affiliation:
UVHC, IEMN-DOAE, 59313 Valenciennes, France
*
[email protected]
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Abstract

Ultra Wide Band (UWB) is based on the transmission of very short pulses with relatively low energy. This technology may see increased use in the wireless communications and sensing application. Having the available bandwidth of 7.5 GHz and the minimum signal bandwidth of 500 MHz, UWB systems can be divided into two groups: impulse communication system and multi-band system. In multi-band, the spectrum is divided into several subbands. In this paper, we propose this technique for subway transport systems; especially for communication between trains or train-infrastructure. So, the main purpose of this paper is to make use of the original mathematical tools called orthogonal functions to allow a multi-user communication system for multi-band UWB transmission. The BER values will be calculated and analyzed using computer simulations in the presence of multi-user interference, in order to evaluate the performances of the proposed system. These BER values will be given for two cases: the users in the same subband and a single user per subband. We will show that the proposed orthogonal waveforms give good performances in terms of BER and are able to reduce multi-user interference. The proposed method has many potentials advantages in terms of complexity and implementation.

Type
Research Article
Information
The European Physical Journal - Applied Physics , Volume 53 , Issue 3: Focus on Telecom 2009 & JFMMA , March 2011 , 33608
Copyright
© EDP Sciences, 2011

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References

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