Title :
Robust AM-MIMO based on minimized transmission power
Author :
Wang, Zhiying ; Chen He ; He, An
Author_Institution :
Dept. of Electron. Eng., Shanghai Jiao Tong Univ.
fDate :
6/1/2006 12:00:00 AM
Abstract :
We propose a design of minimizing transmission power adaptive modulation (AM) that utilizes imperfect channel state information (I-CSI) in multi-input and multi-output (MIMO) systems. By taking channel estimation errors into account, the proposed algorithm provides the quality of services (QoS) closed to the expected values when larger channel estimation error occurs. Furthermore, we, make comparison between the proposed algorithm and the ideal one based on perfect CSI assumption, and present the simulations results to illustrate the performance advantages at last
Keywords :
MIMO systems; adaptive modulation; channel estimation; minimisation; power transmission; quality of service; AM-MIMO system; I-CSI; QoS; adaptive modulation; channel estimation; imperfect channel state information; multiinput multioutput system; quality of service; transmission power minimization; AWGN; Bit error rate; Channel estimation; Channel state information; Estimation error; Fading; Helium; MIMO; Quality of service; Robustness;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2006.1638606
