09-23-2010, 10:48 PM
Perhaps the below mentioned link might be able to answer Mr. Kamran's query...
http//citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.120.6329&rep=rep1&type=pdf
http//citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.120.6329&rep=rep1&type=pdf