Title :
A closed-loop STTD scheme using limited feedback unitary precoding for MIMO-OFDM-OSTBC system
Author :
Wang, Jie ; Zhang, Zhonghao ; Li, Shaoqian ; Gong, Yuehuan ; Liu, Tao
Author_Institution :
School of Electronic Engineering, University of Electronic Science and Technology of China, Chengdu, 610054, China
Abstract :
In this paper, we present a closed-loop STTD scheme using limited feedback unitary precoding for MIMO-OFDM-OSTBC systems, which supports different numbers of transmit antennas. The simulation results show that adopting the STTD scheme in MIMO-OFDM-OSTBC system can obtain higher diversity advantage. Compared with other STTD schemes, the proposed scheme is more flexible in practical application, allows a tradeoff between feedback rate and system performance, and has good upgrading ability of supporting the systems with different numbers of transmit antennas.
Keywords :
Antennas; OFDM;
Conference_Titel :
Communications, Circuits and Systems, 2007. ICCCAS 2007. International Conference on
Conference_Location :
Kokura
Print_ISBN :
978-1-4244-1473-4
DOI :
10.1109/ICCCAS.2007.6250071
