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Proceedings Paper

Performance of chirp-slope keying with joint time-frequency detectors
Author(s): Iñigo X. Incer; Edit J. Kaminsky
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Paper Abstract

This paper discusses recent studies on Chirp Slope Keying (CSK) as a scheme suitable for underwater communications and presents a new study on the performance of a time-frequency receiver in a Rayleigh fading environment. As expected, CSK proves to be a digital modulation scheme inferior in the AWGN channel as compared to traditional schemes but very promising in more detrimental channels present in underwater communications. In effect, while most schemes' performances decay abruptly with the addition of new disturbances, a time-frequency CSK receiver's performance deteriorates slowly with increasing Rayleigh fading. Intuition dictates that CSK will overpower other schemes as channel conditions continue to worsen. The receiver first uses the Wigner distribution to transform the incoming signal to the joint time-frequency domain and then computes the Radon transform to determine the binary digit received.

Paper Details

Date Published: 3 May 2007
PDF: 9 pages
Proc. SPIE 6577, Wireless Sensing and Processing II, 65770H (3 May 2007); doi: 10.1117/12.717771
Show Author Affiliations
Iñigo X. Incer, Univ. of New Orleans (United States)
Edit J. Kaminsky, Univ. of New Orleans (United States)

Published in SPIE Proceedings Vol. 6577:
Wireless Sensing and Processing II
Raghuveer M. Rao; Sohail A. Dianat; Michael D. Zoltowski, Editor(s)

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