ACKNOWLEDGEMENT
I would like to express my sincere thanks to my thesis advisor, Dr. Wipawee
Hattagam for her invaluable help and cons
tant encouragement throughout the course
of this research. I am most
grateful for her teaching and
advice, not only the research
methodologies but also many other methodologies
in life. I would
not have achieved
this far and this thesis would not have b
een completed without all the support that I
have always received from her.
In addition, I am grateful for the te
achers of telecommuni
cation engineering:
Asst. Prof. Dr. Rangsan Wongsa
n, Dr. Rangsan Tongta, and othe
rs person for suggestions
and all their help.
Finally, I most gratefully acknowledge my
parents and my friends for all their
support throughout the period of this research.