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Proceedings Paper

Wavelet-packet-based multiple-access communication
Author(s): Rachel E. Learned; A. Hamid Krim; Bernhard E. H. Claus; Alan S. Willsky; William Clement Karl
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Paper Abstract

We explore the role that the wavelet packet transforms can play an increasing multiple access communication throughput via waveform design and receiver design. Wavelet packets offer a flexible framework which allows us to select and refine signature waveforms at intermediate time-frequency levels leading to the development of efficient methods for near optimal receiver implementation. The optimal receiver will jointly demodulate all of the received waveforms and has a complexity which is exponential in the number of users, while a suboptimal version will attempt to do the same with a greatly reduced computational complexity. We believe that our wavelet packet recursive joint detection system described in this paper offers a good alternative approach to existing comparable methods. Specifically, our preliminary analysis and simulation results indicate the potential for a marked computational improvement over the optimal detector and additional flexibility and efficiency over other proposed joint detection schemes for multiple access communication.

Paper Details

Date Published: 11 October 1994
PDF: 14 pages
Proc. SPIE 2303, Wavelet Applications in Signal and Image Processing II, (11 October 1994); doi: 10.1117/12.188775
Show Author Affiliations
Rachel E. Learned, Massachusetts Institute of Technology (United States)
A. Hamid Krim, Massachusetts Institute of Technology (United States)
Bernhard E. H. Claus, Massachusetts Institute of Technology (United States)
Alan S. Willsky, Massachusetts Institute of Technology (United States)
William Clement Karl, Massachusetts Institute of Technology (United States)


Published in SPIE Proceedings Vol. 2303:
Wavelet Applications in Signal and Image Processing II
Andrew F. Laine; Michael A. Unser, Editor(s)

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