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| Modulation Classification Using Spatial Diversity |
| He Tao; Zhou Zheng-ou |
| Department of Electronic Engineering, UESTC, Chengdu 610054, China |
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Abstract A decision-theoretic based scheme is developed for modulation classification in a fading environment. The proposed method takes into account a flat Rayleigh fading propagation channel. The likelihood function is derived according to the channel and signals’ parameters character and classifier is constructed. Spatial diversity technique with multi-antennas array receiver is exploited to improve the correct classification probability. A method dealing with the effect for diversity induced by the displacement of receiving antennas is also proposed. Simulations demonstrate that the proposed scheme is efficient in fading situations.
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Received: 14 September 2006
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2008, Vol. 30 
