Wireless CDMA communications using time-varying signals

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

13 Scopus citations

Abstract

We propose to use time-varying signals in code division multiple access (CDMA) techniques for wireless communication channels. Specifically, we employ linear FM chirp signaling in a frequency hopped (FH) CDMA system with additive white Gaussian noise (AWGN). Every user is characterized not only by a unique pseudonoise (PN) sequence but also by a unique set of chirp rates. Our multirate chirp (MRC) FH-CDMA system has been motivated by the inherent resistance of chirp signals against AWGN. We demonstrate that our system is bandwidth efficient and resistant against AWGN. Simulations successfully demonstrate the increase in performance of the new method as compared to frequency shift keying (FSK) FH-CDMA.

Original languageEnglish (US)
Title of host publication6th International Symposium on Signal Processing and Its Applications, ISSPA 2001 - Proceedings; 6 Tutorials in Communications, Image Processing and Signal Analysis
PublisherIEEE Computer Society
Pages242-245
Number of pages4
ISBN (Print)0780367030, 9780780367036
DOIs
StatePublished - Jan 1 2001
Event6th International Symposium on Signal Processing and Its Applications, ISSPA 2001 - Kuala Lumpur, Malaysia
Duration: Aug 13 2001Aug 16 2001

Publication series

Name6th International Symposium on Signal Processing and Its Applications, ISSPA 2001 - Proceedings; 6 Tutorials in Communications, Image Processing and Signal Analysis
Volume1

Other

Other6th International Symposium on Signal Processing and Its Applications, ISSPA 2001
CountryMalaysia
CityKuala Lumpur
Period8/13/018/16/01

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ASJC Scopus subject areas

  • Computer Science Applications
  • Signal Processing

Cite this

Gupta, C., & Papandreou-Suppappola, A. (2001). Wireless CDMA communications using time-varying signals. In 6th International Symposium on Signal Processing and Its Applications, ISSPA 2001 - Proceedings; 6 Tutorials in Communications, Image Processing and Signal Analysis (pp. 242-245). [949822] (6th International Symposium on Signal Processing and Its Applications, ISSPA 2001 - Proceedings; 6 Tutorials in Communications, Image Processing and Signal Analysis; Vol. 1). IEEE Computer Society. https://doi.org/10.1109/ISSPA.2001.949822