A New Approach for Evaluating Clipping Distortion in DS-CDMA Systems

Jian WANG  Xiuming SHAN  Yong REN  

IEICE TRANSACTIONS on Communications   Vol.E88-B    No.2    pp.792-796
Publication Date: 2005/02/01
Online ISSN: 
DOI: 10.1093/ietcom/e88-b.2.792
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Wireless Communication Technologies
DS-CDMA,  nonlinearities,  impulse noise,  

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A new theoretical approach for the evaluation of the in-band nonlinear distortion effects on the performance of DS-CDMA systems is presented. Rather than widely used models of treating the effects of nonlinear distortion as additive Gaussian noise, the new approach is based on the asymptotic clipping and shot noise theories, which offer important insights into true nature of clipping process and can be further extended to many communications systems with high PAPR and peak-limited nonlinearities.