American Journal of Applied Sciences

MAI Cancellation in DS/CDMA using a new Approach on WDS

Y. Jabrane, R. Iqdour, B. Ait Es said and N. Naja

DOI : 10.3844/ajassp.2007.736.740

American Journal of Applied Sciences

Volume 4, Issue 10

Pages 736-740


The steeping chip weighting waveforms are used in Multiple Access Interference cancellation by emphasizing the received spreading signal, therefore, that allows to solve the problem of orthogonality for the chip waveforms. The goal of this study was to elaborate a useful method based on fuzzy systems to determine the despreading sequences weighted by the steeping chip weighting waveforms for Direct Sequence Code Division Multiple Access (DS/CDMA). The validity of the proposed method has been tested by numerical examples for an Additive White Gaussian Noise channels and shows that the parameter values of the chip weighting waveforms are good and the Bit Error Rate (BER) performance of the system does not undergone any degradation.


© 2007 Y. Jabrane, R. Iqdour, B. Ait Es said and N. Naja. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.