double-printed trapezoidal patch dipole antenna for UWB applications with band-notched characteristic
FREE-DOWNLOADYS Hu, M Li, GP Gao, JS Zhang… – Progress In Electromagnetics …, 2010 Abstract—In this paper, a novel double-printed trapezoidal patch dipole antenna suitable for UWB applications with band-notched characteristic is presented and investigated. The band-notched characteristic is achieved by inserting T-shape slots on the trapezoidal
Multiple antenna spectrum sensing in cognitive radios
FREE-DOWNLOADA Taherpour, M Nasiri-Kenari… – … , research Transactions on, 2010 Abstract—In this paper, we consider the problem of spectrum sensing by using multiple antenna in cognitive radios when the noise and the primary user signal are assumed as independent complex zero-mean Gaussian random signals. The optimal multi- ple antenna spectrum
Performance analysis of multiple antenna multi-user detection
FREE-DOWNLOAD J Kazemitabar… – Information Theory and …, 2009 Abstract—We derive the diversity order of some multiple antenna multi-user cancellation and detection schemes. The com- mon property of these detection methods is the usage of Alamouti and quasi-orthogonal space-time block codes. For detecting J users each having N