%0 Journal Article
%A FANG Li
%A LI Dao-ben
%A WANG Ying
%A ZHOU Jing
%T A Low Complexity Time Domain Pilot Scheme for OFDM-MIMO Systems
%D 2013
%R 10.13190/jbupt.201303.1.wangy
%J Journal of Beijing University of Posts and Telecommunications
%P 1-6
%V 36
%N 3
%X <p>The performance of a low complexity time domain pilot scheme for orthogonal frequency division multiplexing-multiple input multiple output systems is analyzed. The scheme is turned out to be of relatively high estimate accuracy with low calculation complexity, and the estimate performance is unaffected with numbers of transmit antenna. There exists no interference between pilots and data symbols. Compared with least square estimator in frequency domain, the present scheme can obtain gains with specific parameters and simple linear correlation under the same mean square estimation level. Also compared with linear minimum mean square error (LMMSE) estimator, the scheme approximates the optimization of LMMSE's favorable performance in high signal to noise ratio region with knowledge of channel taps length only and no more priori information in the estimate process.</p>
%U https://journal.bupt.edu.cn/EN/10.13190/jbupt.201303.1.wangy