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HOS-Based Semi-Blind Spatial Equalization for MIMO Rayleigh Fading Channels.

Ding, Z. and Ratnarajah, T. and Cowan, C. (2008) HOS-Based Semi-Blind Spatial Equalization for MIMO Rayleigh Fading Channels. IEEE Transactions on Signal Processing, 56 (1). pp. 248-255. ISSN 1053-587X

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Abstract

In this paper, we concentrate on the direct semi-blind spatial equalizer design for MIMO systems with Rayleigh fading channels. Our aim is to develop an algorithm which can outperform the classical training-based method with the same training information used and avoid the problems of low convergence speed and local minima due to pure blind methods. A general semi-blind cost function is first constructed which incorporates both the training information from the known data and some kind of higher order statistics (HOS) from the unknown sequence. Then, based on the developed cost function, we propose two semi-blind iterative and adaptive algorithms to find the desired spatial equalizer. To further improve the performance and convergence speed of the proposed adaptive method, we propose a technique to find the optimal choice of step size. Simulation results demonstrate the performance of the proposed algorithms and comparable schemes.

Item Type: Article
Journal or Publication Title: IEEE Transactions on Signal Processing
Uncontrolled Keywords: DCS-publications-id ; art-904 ; DCS-publications-credits ; coding-fa ; DCS-publications-personnel-id ; 147
Subjects: Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Departments: Faculty of Science and Technology > School of Computing & Communications
ID Code: 987
Deposited By: Dr Zhiguo Ding
Deposited On: 18 Jan 2008 16:49
Refereed?: Yes
Published?: Published
Last Modified: 22 Oct 2017 02:02
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/987

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