Title :
Unification of ultra-wideband multiple access schemes and comparison in the presence of interference
Author :
Yang, Liuqing ; Giannakis, Georgios B.
Author_Institution :
Dept. of ECE, Minnesota Univ., Minneapolis, MN, USA
Abstract :
Interference constitutes the bottleneck of ultra-wideband (UWB) communications that has been regulated to overlay coexisting narrowband communication systems. To quantify interference and compare UWB systems on that basis, this paper develops a unifying transmission and Rake reception model for UWB multiple access encompassing existing and novel spreading codes. Multiband UWB systems using single- or multicarrier modulation are also introduced. Performance analysis (in closed-form) and simulations assess the relative merits of several UWB systems in narrowband interference (NBI), multipath and additive white Gaussian noise (AWGN) effects, for both matched-filter (MF), and minimum mean-square error (MMSE) Rake receivers.
Keywords :
AWGN; broadband networks; least mean squares methods; matched filters; modulation; multi-access systems; radio receivers; radio reception; radiofrequency interference; spread spectrum communication; AWGN; MMSE; Rake receiver; Rake reception; additive white Gaussian noise; matched-filter; minimum mean-square error; multiband UWB communication; multicarrier modulation; multipath noise; narrowband interference; spreading code; ultra-wideband multiple access scheme; AWGN; Additive white noise; Analytical models; Baseband; Interference; Multipath channels; Narrowband; Performance analysis; Ultra wideband communication; Ultra wideband technology;
Conference_Titel :
Signals, Systems and Computers, 2004. Conference Record of the Thirty-Seventh Asilomar Conference on
Print_ISBN :
0-7803-8104-1
DOI :
10.1109/ACSSC.2003.1292187
