Title :
Enhanced channel estimation for Spatial Multiplexing MIMO-OFDM system
Author :
Patil, Gajanan R. ; Kokate, Vishwanath K.
Author_Institution :
Dept. of Electron. & Telecommun. Eng., Army Inst. of Technol., Pune, India
Abstract :
This paper presents, an enhanced channel estimation for Spatial Multiplexing (SM) Multiple Input Multiple Output (MIMO) Orthogonal Frequency Division Multiplexing (OFDM) system. Initial estimate of the channel is obtained using pilot assisted Least Square (LS) channel estimation using frequency domain approach. Recovered symbols are used to further enhance the channel estimate through time domain approach. The performance of the proposed estimator is demonstrated using computer simulations which are carried out under different channel conditions.
Keywords :
MIMO communication; OFDM modulation; channel estimation; least squares approximations; LS channel estimation; enhanced channel estimation; frequency domain approach; least square channel estimation; multiple input multiple output orthogonal frequency division multiplexing; spatial multiplexing MIMO-OFDM system; Channel estimation; Channel models; Frequency-domain analysis; MIMO; Modulation; OFDM; Time-domain analysis; Multiple input multiple output; orthogonal frequency division multiplexing; pilot assisted least square channel estimation; spatial multiplexing; sphere decoding;
Conference_Titel :
Pervasive Computing (ICPC), 2015 International Conference on
Conference_Location :
Pune
DOI :
10.1109/PERVASIVE.2015.7086975
