Abstract
Generally, it is easier to compute the derivation and maximization of the full-likelihood expectation than the calculations of incompletely data maximizing likelihood function. In some cases, even if it is easy to find the full-likelihood expectation, it is difficult to achieve the maximization of the full-likelihood expectation. So a novel approach for multi-user detection based on the ECM iterative algorithm is proposed. Compared with the EM algorithm, the ECM algorithm reduces the computational complexity of the M-step. The results show that the proposed algorithm has well performance and Convergence in Gaussian noise.
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References
Feder, M., Weinstein, E.: Parameter estimation of superimposed signals using the EM algorithm. IEEE Trans. Acoust., Speech, Signal Processing 36, 477–489
Borran, M.J., Nasiri-Kenari, M.: An Efficient Detection Technique for Synchronous CDMA Communication Systems Based on the Expectation Maximization Algorithm. IEEE Transactions on Vehicular Technology, 1663–1668 (September 2000)
Kay, S.M.(ed.), Luo, P.-F.(trans.): Statistics based on signal processing: estimation and detection theory. Electronic Industry Press, Beijing (2006)
Meng, X.-L., Rubin, D.B.: Maximum likelihood estimation via the ECM algorithm: ageneral framework. Biometrika 80, 267–278 (1993)
Kocian, A., Fleury, B.H.: EM-Based Joint Data Detection and Channel Estimation of DS-CDMA Signals. IEEE Transactions on Communications (October 2003)
Nelson, L.B., Poor, V.: Iterative Multi-user Receivers for CDMA Channels: An EM-Based Approach. IEEE Transactions on Communications 44(12), 1700–1710 (1996)
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© 2012 Springer-Verlag GmbH Berlin Heidelberg
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Xian, J., Liu, Z. (2012). Multi-user Detection Based on the ECM Iterative Algorithm in Gaussian Noise. In: Jin, D., Lin, S. (eds) Advances in Computer Science and Information Engineering. Advances in Intelligent and Soft Computing, vol 168. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-30126-1_15
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DOI: https://doi.org/10.1007/978-3-642-30126-1_15
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-30125-4
Online ISBN: 978-3-642-30126-1
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