Performance of sinusoidally-distributed dithering for signed-error constant modulus algorithm

Jusak, J and Hussain, Z 2005, 'Performance of sinusoidally-distributed dithering for signed-error constant modulus algorithm', in X. He et al (ed.) Proceedings of the Third International Conference on Information Technology and Applications, Sydney, Australia, 4-7 July 2005, pp. 626-629.


Document type: Conference Paper
Collection: Conference Papers

Title Performance of sinusoidally-distributed dithering for signed-error constant modulus algorithm
Author(s) Jusak, J
Hussain, Z
Year 2005
Conference name International Conference on Information Technology and Applications
Conference location Sydney, Australia
Conference dates 4-7 July 2005
Proceedings title Proceedings of the Third International Conference on Information Technology and Applications
Editor(s) X. He et al
Publisher IEEE
Place of publication Sydney, Australia
Start page 626
End page 629
Total pages 4
Abstract The complexity of the ubiquitous constant modulus algorithm (CMA) can be reduced by applying a sign operation to the CMA error function, while a sign operator generally can be seen as a 1-bit (two-level) mid-riser quantization. However, in order to preserve the information lost as a result of quantization processes, dithering is commonly used. In this paper, we evaluate the performance of dithered signed-error CMA utilizing a dithering signal that has sinusoidal probability density function. The algorithm has also been applied for equalization in wireless communication channel, which is distorted by multi-path propagation. Simulation results show that dithering using sinusoidal distribution outperforms the dithering using uniform distribution in terms of convergence speed.
DOI - identifier 10.1109/ICITA.2005.214
Copyright notice © 2005 IEEE
ISBN 0-7695-2316-1
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