The integration of a multitude of wireless networks is expected to lead to the emergence of the fourth generation (4G) of wireless technologies. Under the motivation of increasing the levels of user satisfaction while maintaining seamless connectivity and a satisfactory level of QoS, we design a novel cross-layer architecture that provides context-awareness, smart handoff andmobility control in...

Dr. Parviz Dabiri (1921–2012) was a distinguished professor of pathology at Isfahan University of Medical Sciences in Iran and an in uential mentor who devoted most of his fruitful life to the promotion of science and culture. He passed away, at age 91, on July 3, 2012 in Isfahan. Professor Dabiri was born in Tehran to an educated family. His father, Seyed Mehdi Agha was a senior of cial of the...

Acknowledgment This dissertation would not have been possible without the guidance and the help of several individuals who in one way or the other contributed and extended their valuable assistance in the preparation and completion of this work. I would like to thank Professor Henri PIERREVAL and Professor Jean-Charles BILLAUT for accepting my request to examine this thesis as the official refe...

To my grandmother To my parents To my sisters, Fatemeh and Zahra and To my brothers, Nasser and Mansour v ACKNOWLEDGMENTS All the years of my PhD studies at The University of Texas at Dallas would not have been such a wonderful and enjoyable experience if it were not for all my amazing friends, colleagues, advisers and family that I have been very fortunate to always have around. I would not ha...

Acknowledgements I would like to extend my gratitude to my supervisor Sam Howison for his guidance and advice throughout the preparation and writing of this dissertation. I would also like to thank Christoph Reisinger for his advice whilst Dr Howison was away. Finally and most importantly I would like to thank my parents for their continued emotional and financial support, without which I would...