Paper Information

Journal:   IRANIAN JOURNAL OF ELECTRICAL AND COMPUTER ENGINEERING (IJECE)   WINTER-SPRING 2003 , Volume 2 , Number 1; Page(s) 61 To 68.
 
Paper: 

VOLTERRA FILTERS: A PROMISING TOOL FOR WIDEBAND AND NARROWBAND INTERFERENCE SUPPRESSION IN DS-SS COMMUNICATION SYSTEMS

 
 
Author(s):  KOCUR D., ZETIK R.
 
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Abstract: 

The direct-sequence spread-spectrum (DS-SS) transmission system offers a promising solution to an overcrowded frequency spectrum amid growing demand for mobile and personal communication systems. Spreadspectrum system by its very nature is an interference-tolerant modulation. However, there are situations where the processing gain is inadequate and interference suppression techniques must be employed. In this paper, it will be shown how linear or non-linear estimators inserted into DS-SS receivers can be applied for interference suppression. In our consideration, Wiener filters (WF) and Volterra filters (VF) will be used as the estimators. In order to demonstrate the performance properties of discussed DS-SS receivers, a number of computer experiments have been done. The results of the experiments will show that in the case of wideband, narrowband or joined wideband and narrowband interference the VF application in DS-SS receivers can outperform the WF application or DS-SS receivers based on simple application of matched filters (MF).

 
Keyword(s): DIRECT-SEQUENCE SPREAD-SPECTRUM TRANSMISSION SYSTEM, INTERFERENCE SUPPRESSION, WIENER FILTER,VOLTERRA FILTER
 
References: 
 
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