... F Ramirez-Mireles, Performance of ultra wideband SSMA using timehopping and M-ary PPM. IEEE J Sel Areas Commun. 19(6), 1186–1196(2001). doi:10.1109/49.92637417. S Niranjayan, A Nallanathan, ... Haimovich, The capacity of an UWB multiple-accesscommunications system, in Proc IEEE ICC 2002, 1964–1968 (May 2002)10. J Zhang, TD Abhayapala, RA Kennedy, Performance of ultra-widebandcorrelator receiver ... the MAI is inconsistentwith that obtained by using the GA. Hence, using GAleads to inaccurate error probability analysis and alsoleads to optimistically overestimate the system perfor-mance....