Optimization of spectrum management in cognitive radio networks.
Wenjie. Zhang · 2013
The rapid growth of wireless services has resulted in the increasing demand on spectrum.However, a recent study has shown that most of the allocated frequency bands are significantly under-utilized.Cognitive radio has been proposed as a potential technology to mitigate the spectrum scarcity by allowing the secondary users (SUs) to The author would like to express my most sincere gratitude and respect to my supervisor, Associate Professor Yeo Chai Kiat, for her constant patience, kindness, continuous encouragement and support during my four years of PhD candidature.Her wisdom and broad experience, her invaluable guidance and suggestions, her rich knowledge and critical thoughts have always offered great help and inspirations to all my work.Without her guidance, the author cannot imagine how this dissertation could be finished.Thus, first of all, the author would like to express my great appreciation to my supervisor for providing me with the precious research opportunity and selfless help.It is really the