Acknowledgment

First before all we would like to express our gratitude to all those
who gave us the possibility to complete this thesis. Also we want to
thank the Department of
electrical engineering, communication & electronics
branch for giving us the permission to commence this thesis in the
first instance, to do the necessary research work and to use
departmental data.
We are grateful to our supervisor Dr.(Michael Nassif) and
Dr.(Gehan samy) for their endless, Patience and helpful suggestion,
and for their support throughout our academic courses by offering
their own ideas and about his intellectual stimulation,hospitality and
considerable sense of humor throughout this project that we will
appreciatively remember.
Finally we are deeply indebted to our supervisor Dr.(Michael Nassif)
and Dr.(Gehan samy) whose help,
stimulating suggestions and encouragement helped us in all the time
of research for and writing of this thesis. We also extend our thanks
for them as they had helped us a lot to understand the basics of our
project.