Title :
Performance of UWB communications with imperfect channel estimation
Author :
Choi, John D. ; Stark, Wayne E.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Michigan Univ., Ann Arbor, MI, USA
Abstract :
In this paper, we examine the performance of diversity combining with imperfect channel estimation when the channel is comprised of diffuse as well as specular, or nonfading, components. It is shown that the presence of specular components under certain conditions can reduce the combining loss incurred by large-bandwidth systems when employing imperfect channel estimates and combining a significant number of resolvable paths.
Keywords :
Rayleigh channels; Rician channels; broadband networks; channel estimation; diversity reception; error statistics; least mean squares methods; BER; Rayleigh Fading; Rician fading; UWB; bit error rate; diversity combining; imperfect channel estimation; specular components; ultra wideband communication; Bandwidth; Channel estimation; Computer science; Delay; Diversity reception; Energy resolution; Fading; Nakagami distribution; Rician channels; Signal resolution;
Conference_Titel :
Military Communications Conference, 2003. MILCOM '03. 2003 IEEE
Print_ISBN :
0-7803-8140-8
DOI :
10.1109/MILCOM.2003.1290276
