Title :
Multistage MMSE-DFD Receiver for Ultra-Wide Bandwidth Impulse Radio
Author :
Hu, Chia-Chang ; Cheng, Yong-Sheng ; Kuo, Shih-Chieh
Author_Institution :
Dept. of Electr. Eng., Nat. Chung Chen Univ., Ming-Hsiung
fDate :
Oct. 28 2005-Nov. 1 2005
Abstract :
An adaptive minimum mean-square error (MMSE) receiver is developed based on the multistage matrix Wiener filter decision feedback detection (MMWF-DFD) scheme for ultra-wideband time-hopping impulse radio in multipath fading channels. The feedforward and feedback filters of the MMWF-DFD receiver are capable of sharing the same calculation basis to alleviate the computational complexity without compromising system performance. Simulation results show that the reduced-rank MMWF-DFD receiver is able to provide similar performance level in demodulation to that of the full-rank MMSE-DFD receiver, but requires much less computational complexity
Keywords :
Wiener filters; automatic repeat request; computational complexity; demodulation; fading channels; feedforward; filtering theory; least mean squares methods; matrix algebra; multipath channels; radio receivers; ultra wideband communication; computational complexity; demodulation performance; feedback filters; feedforward filters; minimum mean-square error; multipath fading channels; multistage MMSE receiver; multistage matrix Wiener filter decision feedback detection; ultrawideband time-hopping impulse radio; Bandwidth; Computational complexity; Computational modeling; Demodulation; Fading; Feedback; Receivers; System performance; Ultra wideband technology; Wiener filter;
Conference_Titel :
Signals, Systems and Computers, 2005. Conference Record of the Thirty-Ninth Asilomar Conference on
Conference_Location :
Pacific Grove, CA
Print_ISBN :
1-4244-0131-3
DOI :
10.1109/ACSSC.2005.1599836
