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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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)
Title of host publicationIEEE Signal Processing Workshop on Signal Processing Advances in Wireless Communications, SPAWC
PublisherIEEE
Pages217-220
Number of pages4
StatePublished - 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

    Fingerprint

ASJC Scopus subject areas

  • Signal Processing

Cite this

Flikkema, P. G. (1997). Decision feedback multipath cancellation for coherent direct sequence spread spectrum wireless networks. In IEEE Signal Processing Workshop on Signal Processing Advances in Wireless Communications, SPAWC (pp. 217-220). IEEE.