Multi-Carrier CDMA over copper lines - Comparison of performances with the ADSL system

被引：8

作者：

Mallier, S ^{[1
]}

Nouvel, F ^{[1
]}

Baudais, JY ^{[1
]}

Gardan, D ^{[1
]}

Zeddam, A ^{[1
]}

机构：

[1] INSA LCST, F-35043 Rennes, France

来源：

FIRST IEEE INTERNATION WORKSHOP ON ELECTRONIC DESIGN, TEST AND APPLICATIONS, PROCEEDINGS | 2002年

关键词：

D O I：

10.1109/DELTA.2002.994671

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

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) [3]. However in ADSL, the it-ire 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 content, we show that the MC-CDMA technique presents better performances than the normalised ADSL technique under identical simulation parameters (data rate, bandwith, transmitted power, coding, interleaver).

引用

页码：450 / 452

页数：3

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