Open Access. The Published version of this work has been reproduced here in accordance with the Publisher’s archiving and copyright policies.
This work was published in EURASIP Journal on Advances in Signal Processing 2008, Article ID 549586, published by Hindawi Publishing Corporation and has be reproduced here under the Creative Commons Attribution License http://creativecommons.org/licenses/by/3.0/ which permits you to copy, distribute, transmit and adapt the work as long as you attribute the author(s) of the work.
Copyright (2008) Author(s)
EURASIP Journal on Advances in Signal Processing, 2008: [1-13]