Title :
The impact of a wideband channel on UWB system design
Author :
Chen, Mike S W ; Brodersen, Robert W.
Author_Institution :
Berkeley Wireless Res. Center, CA, USA
Abstract :
The goal of this work is to investigate the unique system implementation issues associated with an ultra-wideband channel. The paper begins with channel models and from the characteristics of these models, the cost of doing coherent detection, including channel estimation and maximum ratio combining, is analyzed and simulated. The results show that using a signal bandwidth ranging over 500 MHz to 2 GHz has better system performance than using the entire available 7 GHz bandwidth. It is also shown that matched filtering in UWB plays a more critical role than in a narrowband system. Finally, the impact of imperfect matched filtering is analyzed and simulated.
Keywords :
channel estimation; filtering theory; matched filters; ultra wideband communication; 500 MHz to 2 GHz; UWB system design; channel estimation; channel model; coherent detection; matched filtering; maximum ratio combining; narrowband system; ultrawideband channel; Analytical models; Bandwidth; Channel estimation; Delay; Filtering; Frequency; Matched filters; Narrowband; Performance analysis; Wideband;
Conference_Titel :
Military Communications Conference, 2004. MILCOM 2004. 2004 IEEE
Print_ISBN :
0-7803-8847-X
DOI :
10.1109/MILCOM.2004.1493263
