Title :
Rate adaptation in MIMO antenna selection system with imperfect CSIT
Author :
Ramya, T.R. ; Bhashyam, Srikrishna
Author_Institution :
Dept. of Electr. Eng., IIT Madras, Chennai, India
Abstract :
In this paper, we analyze the performance of an adaptive Multiple Input Multiple Output (MIMO) system employing transmit antenna selection and rate adaptation based on channel state information (CSI). Imperfections in CSI due to estimation error and feedback delay are considered. Since CSI is imperfect, the rate of transmission is chosen in order to meet a target outage probability. The average throughput is evaluated for various cases of imperfect CSI using Monte Carlo simulations. Simulation results show that rate adaptation provides significant gains even with imperfect CSI. Furthermore, prediction can be used to effectively combat the effect of feedback delay.
Keywords :
MIMO communication; Monte Carlo methods; feedback; transmitting antennas; CSIT; MIMO antenna selection system; Monte Carlo simulation; channel state information; feedback delay; multiple input multiple output system; rate adaptation; transmit antenna selection; Adaptive arrays; Channel state information; Delay estimation; Estimation error; Feedback; Information analysis; MIMO; Performance analysis; Throughput; Transmitting antennas;
Conference_Titel :
Communication Systems and Networks (COMSNETS), 2010 Second International Conference on
Conference_Location :
Bangalore
Print_ISBN :
978-1-4244-5487-7
DOI :
10.1109/COMSNETS.2010.5431959
