... Ten years of research in spectrum sensing and sharing in cognitive radio Lu Lu∗ , Xiangwei Zhou, Uzoma Onunkwo and Geoffrey Ye Li School of Electrical and Computer Engineering, Georgia Institute ... implementation of CR In this article, we provide an overview of recent research achievements of including spectrum sensing, sharing techniques and the applications of CR systems Keywords: cognitive ... be of different forms, types, and sizes In general, the sensing information combination at the SBS can be categorized as soft combination and hard combination techniques Soft Combination: In soft...