TIME FREQUENCY TRAINING ESTIMATION METHOD OF OFDM FOR MOBILE LARGE SCALE MIMO SYSTEMS

Authors

  • CH.Hasini , P.Ratna Bhaskar

Keywords:

large-scale MIMO, OFDM, spectral efficiency, time-frequency training (TFT), time frequency joint channel estimation

Abstract

This overview portrays the 40 year evolution of orthogonal frequency division multiplexing (OFDM) research. the amelioration of powerful multicarrier OFDM arrangements with multiple- input multiple output(MIMO) systems has numerous benefits, this paper, we propose time frequency training OFDM(TFT OFDM) transmission scheme for large scale MIMO systems, where each TFT-OFDM symbol without cyclic prefix adopts the time-domain training sequence (TS) and the frequency-domain orthogonal grouped pilots as the time frequency training information We also derive the theoretical Cramer-Rao lower bound (CRLB) of the proposed channel estimator. Compared with conventional large-scale OFDM MIMO systems, we can also implement the MMSE method to improve the spectral efficiency.

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Published

2014-10-30

How to Cite

CH.Hasini , P.Ratna Bhaskar. (2014). TIME FREQUENCY TRAINING ESTIMATION METHOD OF OFDM FOR MOBILE LARGE SCALE MIMO SYSTEMS. International Journal of Research Science and Management, 1(5), 49–56. Retrieved from http://ijrsm.com/index.php/journal-ijrsm/article/view/693

Issue

Vol. 1 No. 5 (2014)

Section

Articles