DocumentCode :
2403066
Title :
Multi-carrier CDMA over copper lines - comparison of performances with the ADSL system
Author :
Mallier, Sébastien ; Nouvel, Fabienne ; Baudais, Jean-Yves ; Gardan, Daniel ; Zeddam, Ahmed
Author_Institution :
INSA/LCST, Rennes, France
fYear :
2002
fDate :
2002
Firstpage :
450
Lastpage :
452
Abstract :
This paper deals with the comparison of two multi carrier modulation techniques over existing copper twisted pairs: the Discrete Multi Tone (DMT) modulation and the Multi Carrier Code Division Multiple Access (MC-CDMA) modulation. The first form has been proposed for Asymmetrical Digital Subscriber Line (ADSL). However in ADSL, the wire pairs suffer from disturbances such as transients, radio-frequency noise. Among them, impulse noise is considered to be one of the most damaging impairments. Then, our proposal intends to limit the effects of such a noise thanks to the use of the latter form of modulation which combines multi carrier technique with spread spectrum. In order to improve the performances of the system proposed still further various detection techniques are studied. In this context, we show that the MC-CDMA technique presents better performances than the normalised ADSL technique under identical simulation parameters (data rate, bandwidth, transmitted power, coding, interleaver)
Keywords :
code division multiple access; copper; digital subscriber lines; impulse noise; modulation; signal detection; spread spectrum communication; twisted pair cables; ADSL system; Cu; DMT modulation; MC-CDMA modulation; copper twisted pair line; detection technique; impulse noise; multi-carrier modulation; spread spectrum technique; Copper; DSL; Modulation coding; Multiaccess communication; Multicarrier code division multiple access; OFDM modulation; Proposals; Radio frequency; Spread spectrum communication; Wire;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Electronic Design, Test and Applications, 2002. Proceedings. The First IEEE International Workshop on
Conference_Location :
Christchurch
Print_ISBN :
0-7695-1453-7
Type :
conf
DOI :
10.1109/DELTA.2002.994671
Filename :
994671
Link To Document :
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