Title :
Optimum combining for time hopping impulse radio UWB RAKE receivers
Author :
Sheng, Hongsan ; Haimovich, Alexander M. ; Molisch, Andreas F. ; Jinyun Zhang
Author_Institution :
New Jersey Inst. of Technol., Newark, NJ, USA
Abstract :
In this paper, we present results on the application of reduced-rank adaptive filtering techniques to the problem of interference suppression in ultra-wideband (UWB) communications. It is shown that reduced-rank optimum combining (OC) methods, in particular the eigen-canceler (EC), are effective in suppressing interference modeled as 802.11a signals. Simulation results are presented to show that the EC requires a shorter data record than minimum mean square error (MMSE) RAKE receivers.
Keywords :
adaptive filters; broadband networks; diversity reception; interference suppression; mean square error methods; radio receivers; radiofrequency interference; 802.11a signals; eigen-canceler; impulse radio; interference suppression; optimum combining method; reduced-rank adaptive filtering techniques; time hopping impulse radio UWB RAKE receivers; ultrawideband communications; AWGN; Additive white noise; Diversity reception; Eigenvalues and eigenfunctions; Fading; Gaussian noise; Interference cancellation; Multipath channels; Narrowband; Signal to noise ratio;
Conference_Titel :
Ultra Wideband Systems and Technologies, 2003 IEEE Conference on
Print_ISBN :
0-7803-8187-4
DOI :
10.1109/UWBST.2003.1267837
