The Channel Shortening comparison between OFDM & MC-CDMA System over an ADSL Channel using a Water-filling

bouasria fatima

Abstract


In this paper our objective focuses on the development of digital transmission techniques in order to solve the problem of Inter-Symbol Interference (ISI) due to multiple paths and the improvement of Multi-Carrier Code Division Multiple Access (MC-CDMA) system performance. The both algorithm: MERRY algorithm (Multicarrier Equalization by Restoration of Redundancy) called TEQ (Time domain EQualizer) and the power allocation method to allocate appropriate power to each user (Water-filling technique (WF)) [1] is used. Finally, the numerical results show that combining Water Filling with TEQ technique allows to reduce the ISI for MC-CDMA systems.


Keywords


MC-CDMA; Water-filling; OFDM; ADSL channel; TEQ equalizer; MERRY algorithm

References


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DOI: http://doi.org/10.11591/ijece.v9i5.pp%25p
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