Dynamic Spectrum Access Communications: Wavelet Modulation with Unequal Power Allocation

  • Marco Lixia
  • Maurizio Murroni
Conference paper


In this chapter, we propose adaptive Wavelet Modulation (WM) to exploit available resources of the channel, avoiding interferences with the primary users of the spectrum. We present a technique based on an unequal power allocation on the transmitted data according to both their sensitivity to channel errors and channel availability. Genetic Algorithms are used to optimize weights with the constraint of average energy per bit remaining unaffected.


Genetic Algorithm Discrete Wavelet Transform Minimum Mean Square Error Dynamic Spectrum Access Additive White Gaussian Noise Channel 
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Copyright information

© Springer Science+Business Media, LLC 2010

Authors and Affiliations

  1. 1.Department of Electrical and Electronic EngineeringUniversity of CagliariCagliariItaly

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