Title :
Evaluation of the Channel State Information Effect to MIMO-OFDM System Performance
Author :
Zhang, Hao ; Zhou, Zhijie ; Zhang, Wenqiang ; Hui, Yi ; Tong, Wei
Author_Institution :
Inst. of Commun. Eng., PLA Univ. of Sci. & Technol., Nanjing
Abstract :
The researches about conditions of the resource allocation algorithm in wireless communication have been done a lot recently. An evaluation model for the adaptive algorithm of MIMO-OFDM system is built in this paper. After formulating system efficiency under static and adaptive conditions, the effect of imperfect channel state information (CSI) to MIMO-OFDM system is analyzed. Analytical and numerical results show effect to the frequency efficiency when the CSI is imperfect, and simulations show that MIMO-OFDM can resist the channel delay. At last we propose the compensatory policy for channel delay and channel estimation error.
Keywords :
MIMO communication; OFDM modulation; channel estimation; resource allocation; wireless channels; MIMO system; OFDM system; channel delay; channel estimation error; channel state information; resource allocation; wireless communication; Adaptive algorithm; Analytical models; Channel state information; Delay effects; Frequency; Information analysis; Resists; Resource management; System performance; Wireless communication;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2008. WiCOM '08. 4th International Conference on
Conference_Location :
Dalian
Print_ISBN :
978-1-4244-2107-7
Electronic_ISBN :
978-1-4244-2108-4
DOI :
10.1109/WiCom.2008.136
