1.Ultra-wideband interference mitigation using cross-layer cognitive radio 2.Time-varying interference spectral analysis for Cognitive UWB networks 3.Cosine Modulated Filterbank Technique for Cognitive UWB 4.Coexistence Issues in Cognitive R

Global navigation satellite systems have been revolutionising surveying, geodesy, navigation and other position/location sensitive disciplines. However, there are two intrinsic shortcomings in such satellite-based positioning systems: signal attenuat