Title :
Ordered statistics based rate allocation scheme for closed loop MIMO-OFDM system
Author :
He, Xiang ; Wang, SiYa ; Zhang, Wenjun ; Gan, XiaoYin
Author_Institution :
Shanghai Jiao Tong Univ., China
Abstract :
We propose a new rate allocation algorithm for closed loop MIMO-OFDM system. The new scheme utilizes ordered statistics of channel matrix\´s singular value and is significantly simpler than ideal scheme which uses water-filling in both frequency and space domain. The proposed scheme is more flexible in that it does not force the use of large antenna array as "conventional frequency flat constraint" scheme does [J.R.B. Joon Hyun Sung, January 2003]. It also outperforms FFC algorithm under equal hardware complexity.
Keywords :
MIMO systems; OFDM modulation; channel allocation; computational complexity; matrix algebra; statistical analysis; channel matrix; closed loop MIMO-OFDM system; conventional frequency flat constraint scheme; hardware complexity; ordered statistics; rate allocation scheme; space domain; AWGN; Antenna arrays; Frequency domain analysis; Gallium nitride; Hardware; Helium; MIMO; Receiving antennas; Statistics; Transmitters;
Conference_Titel :
Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks, 2005. WIOPT 2005. Third International Symposium on
Print_ISBN :
0-7695-2267-X
DOI :
10.1109/WIOPT.2005.37
