... 39, No. 1, pp. 15 7–1 76. Ultra Wideband Communications: Novel Trends – System, Architecture and Implementation 70assume that the a priori probabilities () are equal, and () does ... Nonoverlapping FDM is also called as a multiband modulation system (Anttonen & Mämmelä, 2009). Ultra Wideband Communications: Novel Trends – System, Architecture and Implementation 88Verdu S. (1998). ... synchronous CDMA systems, IEEE J. Sel. AreasCommun. 19(6): 98 5–9 98.64 Ultra Wideband Communications: Novel Trends – System, Architecture and Implementation Low Complexity Phase-Unaware Detectors...