Multipath combining/cancelling DS spread spectrum detection

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

Abstract

The additional dimensionality and bandwidth of direct-sequence spread spectrum signaling can be used to provide multiple access and exploit multipath in wireless communication. However, the severely spread channels that will be encountered in broadband wireless applications, combined with bandwidth limitations, motivates the use of additional receiver processing to provide improved performance at moderate spreading gains. In this paper, spread spectrum with simultaneous rake combining and ISI cancellation is explored. A received signal model is presented that captures the general time-varying multipath/multi-user case. Linear detectors are studied; in particular, results are shown for a correlation detector supplying tentative decisions to a rake detector working in tandem with a decision feedforward/feedback structure. The performance of this method is compared with both classical rake detection and a rake performance bound. The results show significant gains for typical multipath channels and suggest directions for further study of joint spread-spectrum and symbol-rate receiver processing.

Original languageEnglish (US)
Title of host publicationConference Record of the Asilomar Conference on Signals, Systems and Computers
EditorsM.P. Farques, R.D. Hippenstiel
PublisherIEEE Comp Soc
Pages811-815
Number of pages5
Volume1
StatePublished - 1998
Externally publishedYes
EventProceedings of the 1997 31st Asilomar Conference on Signals, Systems & Computers. Part 1 (of 2) - Pacific Grove, CA, USA
Duration: Nov 2 1997Nov 5 1997

Other

OtherProceedings of the 1997 31st Asilomar Conference on Signals, Systems & Computers. Part 1 (of 2)
CityPacific Grove, CA, USA
Period11/2/9711/5/97

Fingerprint

Correlation detectors
Detectors
Bandwidth
Multipath propagation
Processing
Feedback
Communication

ASJC Scopus subject areas

  • Hardware and Architecture
  • Signal Processing
  • Electrical and Electronic Engineering

Cite this

Flikkema, P. G. (1998). Multipath combining/cancelling DS spread spectrum detection. In M. P. Farques, & R. D. Hippenstiel (Eds.), Conference Record of the Asilomar Conference on Signals, Systems and Computers (Vol. 1, pp. 811-815). IEEE Comp Soc.

Multipath combining/cancelling DS spread spectrum detection. / Flikkema, Paul G.

Conference Record of the Asilomar Conference on Signals, Systems and Computers. ed. / M.P. Farques; R.D. Hippenstiel. Vol. 1 IEEE Comp Soc, 1998. p. 811-815.

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

Flikkema, PG 1998, Multipath combining/cancelling DS spread spectrum detection. in MP Farques & RD Hippenstiel (eds), Conference Record of the Asilomar Conference on Signals, Systems and Computers. vol. 1, IEEE Comp Soc, pp. 811-815, Proceedings of the 1997 31st Asilomar Conference on Signals, Systems & Computers. Part 1 (of 2), Pacific Grove, CA, USA, 11/2/97.
Flikkema PG. Multipath combining/cancelling DS spread spectrum detection. In Farques MP, Hippenstiel RD, editors, Conference Record of the Asilomar Conference on Signals, Systems and Computers. Vol. 1. IEEE Comp Soc. 1998. p. 811-815
Flikkema, Paul G. / Multipath combining/cancelling DS spread spectrum detection. Conference Record of the Asilomar Conference on Signals, Systems and Computers. editor / M.P. Farques ; R.D. Hippenstiel. Vol. 1 IEEE Comp Soc, 1998. pp. 811-815
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