Title :
Low-Complexity Optimal Estimation of MIMO ISI Channels With Binary Training Sequences
Author :
Wang, Shuangquan ; Abdi, Ali
Author_Institution :
Center for Wireless Commun. & Signal Process. Res., New Jersey Inst. of Technol.
Abstract :
In this letter, a novel low-complexity optimal channel estimator using uncorrelated periodic complementary sets of binary sequences is proposed for multiple-input multiple-output (MIMO) intersymbol interference (ISI) channels. The estimator is optimal since it attains the minimum possible Crameacuter-Rao lower bound (CRLB). Moreover, it can be implemented with very low complexity via ASIC/FPGA, which makes it suitable and ready for practical MIMO systems
Keywords :
MIMO systems; application specific integrated circuits; binary sequences; channel estimation; field programmable gate arrays; intersymbol interference; ASIC-FPGA; CRLB; Cramer-Rao lower bound; MIMO ISI channel estimation; application specific integrated circuit; binary training sequence; field programmable gate array; intersymbol interference; multiple-input multiple-output system; uncorrelated periodic complementary set; Application specific integrated circuits; Binary sequences; Channel estimation; Convolution; Fading; Frequency estimation; Intersymbol interference; MIMO; Peak to average power ratio; Signal processing; Channel estimation; frequency-selective channel; intersymbol interference (ISI); multiple-input multiple-output (MIMO); uncorrelated complementary sets;
Journal_Title :
Signal Processing Letters, IEEE
DOI :
10.1109/LSP.2006.876344
