Title :
Ultra-wideband multiple access: unification and narrowband interference analysis
Author :
Yang, Liuqing ; Giannakis, Georgios B.
Author_Institution :
Dept. of Electr. & Comput. Eng.,, Minnesota Univ., Minneapolis, MN, USA
Abstract :
Interference from co-existing narrowband services constitutes the bottleneck of ultra-wideband (UWB) communications. To quantify interference and compare UWB systems on that basis, a general framework is needed. In this paper, we develop a unifying transmission and Rake reception model for UWB multiple access encompassing existing and novel spreading codes: direct-sequence (DS), digital single- and multi-carrier (SC/MC), time-hopping (TH), and combinations of them. Performance analysis is also carried out in closed-form. The relative merits of several UWB systems are further assessed by simulations, in narrowband interference (NBI), multipath, and additive white Gaussian noise (AWGN), for both matched-filter (MF), and minimum, mean-square error (MMSE) Rake receivers.
Keywords :
AWGN channels; broadband networks; matched filters; mean square error methods; multi-access systems; multipath channels; radio receivers; radio reception; radiofrequency interference; spread spectrum communication; Rake reception model; additive white Gaussian noise; digital single-multicarrier; direct-sequence; matched-filter; mean-square error; multipath channels; narrowband interference analysis; spreading codes; time-hopping; ultrawideband multiple access; AWGN; Additive white noise; Baseband; Fading; Interference; Multipath channels; Narrowband; Pulse modulation; Ultra wideband communication; Ultra wideband technology;
Conference_Titel :
Ultra Wideband Systems and Technologies, 2003 IEEE Conference on
Print_ISBN :
0-7803-8187-4
DOI :
10.1109/UWBST.2003.1267856
