Title :
A study on Pre/Post-Rake transmission in MIMO-UWB-IR system
Author :
Hioki, Jun ; Ohno, Hiroyoshi ; Sasaki, Masaya ; Ohno, Kohei ; Itami, Makoto
Author_Institution :
Dept. of Appl. Electron., Tokyo Univ. of Sci., Noda, Japan
Abstract :
In this paper, we propose a MIMO (Multiple-Input Multiple-Output) transmission scheme using Pre-Rake filters, as well as Post-Rake filters. The Pre-Rake filter can achieve Rake diversity effect without increasing the complexity of the receiver. The reception performance of the proposed MIMO transmission scheme is evaluated. As the result, it was confirmed that the MMSEC (Minimum Mean Squared Error Combining) scheme was effective as the scheme of path combining under MIMO transmission that transmits several different symbols at the same time. In addition, it was shown that the 2 times 2 MIMO transmission system that uses 4times4 Pre/Post-Rake filters had the good performance because not only diversity effect by multiple reception antennas but also diversity effect by Pre/Post-Rake processing were achieved.
Keywords :
MIMO communication; diversity reception; least mean squares methods; radio receivers; ultra wideband communication; MIMO transmission reception performance; MIMO-UWB-IR system; MMSEC scheme; Post-Rake filters; Pre-Rake filters; Rake diversity; diversity effect; minimum mean squared error combining scheme; multiple reception antennas; multiple-input multiple-output scheme; pre/post-Rake processing; receiver complexity; Data communication; Diversity reception; Filters; Frequency; IP networks; MIMO; RAKE receivers; Signal processing algorithms; Transmitting antennas; Wireless communication;
Conference_Titel :
Ultra-Wideband, 2009. ICUWB 2009. IEEE International Conference on
Conference_Location :
Vancouver, BC
Print_ISBN :
978-1-4244-2930-1
Electronic_ISBN :
978-1-4244-2931-8
DOI :
10.1109/ICUWB.2009.5288722
