Title :
Experimental Analysis of MIMO-OFDM Eigenmode Transmission with MMSE Interference Canceller
Author :
Kakishima, Yuichi ; Le, Haidoan ; Ting, See Ho ; Sakaguchi, Kei ; Araki, Kiyomichi
Author_Institution :
Tokyo Inst. of Technol.
Abstract :
As the wireless channel is constantly changing, MIMO-OFDM eigenmode transmission is extremely vulnerable to the presence of feedback delay which is unavoidable in a practical system. Under such imperfect conditions, the inter-eigenmode interference can be removed through the use of the MMSE interference canceller. However, to the best of our knowledge, the performance of MIMO-OFDM eigenmode with MMSE interference canceller has not been proven by experimental results. In this paper, we present experimental results for the bit error rate (BER) performance of MIMO-OFDM eigenmode transmission with and without MMSE interference canceller. In the experiment, a time-varying channel is synthetically generated in a static environment by exploiting the inherent spatial correlation in a static environment. Our experimental results proved the robustness of MIMO-OFDM eigenmode with MMSE interference canceller in the presence of feedback delay
Keywords :
MIMO communication; OFDM modulation; delays; eigenvalues and eigenfunctions; error statistics; interference suppression; least mean squares methods; time-varying channels; wireless channels; BER; MIMO-OFDM eigenmode transmission; MMSE interference canceller; bit error rate; feedback delay; inter-eigenmode interference; minimum mean square error; multiple input multiple output eigenmode transmission; orthogonal frequency division multiplexing; spatial correlation; time-varying channel; wireless channel; Bit error rate; Delay; Feedback; Interference cancellation; Land mobile radio; MIMO; Mobile communication; Robustness; Testing; Time-varying channels;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2006 IEEE 17th International Symposium on
Conference_Location :
Helsinki
Print_ISBN :
1-4244-0329-4
Electronic_ISBN :
1-4244-0330-8
DOI :
10.1109/PIMRC.2006.253939
