Open Access Journal

ISSN : 2394 - 6849 (Online)

International Journal of Engineering Research in Electronics and Communication Engineering(IJERECE)

Monthly Journal for Electronics and Communication Engineering

Open Access Journal

International Journal of Engineering Research in Electronics and Communication Engineering(IJERECE)

Monthly Journal for Electronics and Communication Engineering

ISSN : 2394-6849 (Online)

Channel Estimation Algorithm For Multi Input Multi Output System To Reduce The Mean Shift Error And Improve The Desired Signal Quality

Author : Ashish Agrawal 1 Neelesh Gupta 2 Chetan Barde 3

Date of Publication :7th December 2015

Abstract: The appropriate choice of the convergence factor in the Least Mean Square (LMS) and recursive least-squares (RLS) algorithm with the forgetting factor in the are key to assuring good performance for the adaptive filter. These choices are environment dependent and optimal ked values for these factors are difficult to determine especially in non stationary environments (High Noise). In this paper, 3 adaptive filtering algorithms with variable convergence factor are analyzed. We compare Least Mean Square algorithm (LMS), Recursive Means Square algorithm (RMS) and our proposed algorithm. The relations of these algorithms with the conventional LMS algorithm are first addressed. Their performance in stationary and non stationary environments is studied and then compare with one exiting and one proposed algorithm. Our Proposed algorithm reduces the noise effect and MSE on signal and gives better desired output as compare to existing algorithms. The paper concludes with experimental results analysis presented. Keywords: Static hand gesture, Fourier Descriptors, Support Vector Machine, Classification Accuracy.

Reference :

  1. [1]Kwong, R. H. Johnston, E. W. A variable step size LMS algorithm. IEEE Trans. On Signal Processing, 1992, vol. 40, no. 7, pp. 1633 – 1642.

    [2] Aboulnasr, T. Mayyas, K. A robust variable step size LMS- type algorithm: analysisand simulations. IEEE Trans. on Signal Processing, 1997, vol. 45, no. 3, pp. 631 – 639.

    [3] Doukopoulos, X. G. Moustakides, G.V. “Blind adaptive channel estimation in OFDM systems.” IEEE Trans. on Wireless Communication, 2006, vol. 5, no. 7, pp. 1716 – 1725

    [4] Y. Zhang, J. A. Chambers, W. Wang, P. Kendrick and T. J. Cox; “A New Variable Step-Size LMS Algorithm With Robustness to Non Stationary Noise”, 2006, A technical report.

    [5]Y. Zhang, J. A. Chambers, W. Wang, P. Kendrick and T. J. Cox; “A New Variable Step-Size LMS Algorithm With Robustness to Non Stationary Noise”, 2007, IEEE, pp. 1349-1352

    [6] Costa M. H., Bermudez J. C. M., “A noise resilient variable step size LMS algorithm”. ScienceDirect on Signal Processing, 2008, vol. 88, no. 3, pp.733-748.

    [7] Temino, L. A. M. R. D., Manchon, C. N. I., Rom, C., Serrensen, T. B., Mogensen, P. Iterative channel estimation with robust Wiener filtering in LTE downlink. In Proc. Vehicular Technology Conference, Sept. 2008, pp. 1 – 5.

    [8] AKINO, T. K. Optimum-weighted RLS channel estimation for rapid fading MIMO channels. IEEE Trans. on Wireless Communication, 2008, vol. 7, no. 11, pp. 4248 – 4260.

    [9] Marcello L.R. de Campost, P. S. R. Diniz and A. Antoniou; “Performance of LMS-Newton Adaptation Algorithms with variable convergence factor in


Recent Article