Decision feedback multipath cancellation for coherent direct sequence spread spectrum wireless networks

Research output: Contribution to conferencePaper

3 Scopus citations

Abstract

We describe a new receiver structure for direct-sequence spread spectrum signals in highly dispersive multipath wireless channels. This structure uses spread-spectrum correlation detection in combination with decision feedback multipath cancellation (DFMC). The multipath discrimination capability of correlation detection is used for suppression of symbol self-interference, and DFMC performs cancellation of intersymbol interference. We demonstrate that a significant performance improvement is possible over that for correlation detection alone. In particular, simulation results show that the joint correlator-DFMC detector does not suffer from error propagation at typical error rates and can approach the performance of the ideal single-path matched filter detector. This technique holds promise for high-rate wireless applications and where bandwidth limitations allow only modest spreading gains.

Original languageEnglish (US)
Pages217-220
Number of pages4
StatePublished - Dec 1 1997
Externally publishedYes
EventProceedings of the 1997 1st IEEE Signal Processing Workshop on Signal Processing Advances in Wireless Communications, SPAWC'97 - Paris, Fr
Duration: Apr 16 1997Apr 18 1997

Other

OtherProceedings of the 1997 1st IEEE Signal Processing Workshop on Signal Processing Advances in Wireless Communications, SPAWC'97
CityParis, Fr
Period4/16/974/18/97

ASJC Scopus subject areas

  • Signal Processing

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  • Cite this

    Flikkema, P. G. (1997). Decision feedback multipath cancellation for coherent direct sequence spread spectrum wireless networks. 217-220. Paper presented at Proceedings of the 1997 1st IEEE Signal Processing Workshop on Signal Processing Advances in Wireless Communications, SPAWC'97, Paris, Fr, .