11 October 1994 Wavelet-packet-based multiple-access communication
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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.
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Rachel E. Learned, A. Hamid Krim, Bernhard E. H. Claus, Alan S. Willsky, William Clement Karl, "Wavelet-packet-based multiple-access communication", Proc. SPIE 2303, Wavelet Applications in Signal and Image Processing II, (11 October 1994); doi: 10.1117/12.188775; https://doi.org/10.1117/12.188775
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KEYWORDS
Wavelets

Sensors

Receivers

Signal to noise ratio

Algorithm development

Detection and tracking algorithms

Signal detection

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