Title :
On the power spectral density of wireless multiple-access UWB impulse radio under realistic propagation conditions
Author :
Taha, Ali ; Chugg, Keith M.
Author_Institution :
Pulse Link Inc., San Diego, CA, USA
Abstract :
The multiple-access power spectral density (PSD) under realistic multipath channels extracted from experimental measurements, for both time-hopping pulse position and direct-sequence antipodal data modulations, is analytically derived and closed form solutions are given. Using a proper pulse shape compatible with the FCC spectral mask, examples of PSDs are given. The magnitude of PSD fluctuations in realistic environments is investigated and compared with line of sight measurements in an anechoic chamber, which may be used for FCC compliance tests.
Keywords :
multi-access systems; multipath channels; pulse position modulation; radio access networks; FCC compliance tests; FCC spectral mask pulse shape; PSD fluctuations; UWB impulse radio; anechoic chamber line of sight measurements; direct-sequence antipodal data modulation; multipath channels; power spectral density; time-hopping pulse position modulation; ultra wideband radio; wireless multiple-access UWB; Closed-form solution; Data analysis; Data mining; Density measurement; FCC; Multipath channels; Position measurement; Power measurement; Pulse measurements; Pulse modulation;
Conference_Titel :
Vehicular Technology Conference, 2003. VTC 2003-Fall. 2003 IEEE 58th
Print_ISBN :
0-7803-7954-3
DOI :
10.1109/VETECF.2003.1285232
