Title :
Performance comparison of the semi-blind channel estimation methods of MIMO communication system
Author :
Bhalani, J. ; Trivedi, A.I. ; Kosta, Y.P. ; Patel, V.T.
Abstract :
In this paper, we present semi-blind channel estimation (SBCE) methods using two deterministic blind algorithms: subspace (SS) approach and least-squares smoothing (LSS) approach. A cost function is design by combining conventional training based method with quadratic blind criterion. As optimization criterion, the channel normalized mean square error (NMSE) is chosen and compares the performance of semi-blind method using subspace and least squares smoothing criterion with the conventional training based method as a function of weighting factor (alpha).
Keywords :
MIMO communication; channel estimation; deterministic algorithms; least mean squares methods; optimisation; channel normalized mean square error; combining conventional training based method; cost function; deterministic blind algorithms; least-squares smoothing approach; optimization criterion; quadratic blind criterion; semiblind channel estimation method; subspace approach; weighting factor function; Argon; Channel estimation; Cost function; MIMO; Neodymium; Receiving antennas; Smoothing methods; Stacking; Throughput; Transmitting antennas; Least-squares smoothing; MIMO; Semi-blind channel estimation; Subspace;
Conference_Titel :
Internet, 2009. AH-ICI 2009. First Asian Himalayas International Conference on
Conference_Location :
Kathmandu
Print_ISBN :
978-1-4244-4569-1
Electronic_ISBN :
978-1-4244-4570-7
DOI :
10.1109/AHICI.2009.5340305
