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Blind Equalization of AF and DF Wireless Cooperative Communication Systems

Cooperation in wireless systems has extensively escalated during the last two decades. A new blind equalization approach based on online regression technique of cooperative communication systems is presented, together with the detailed theoretical derivation of the algorithm. The proposed algorithm can be applied in cooperative communication systems where each node is only equipped with one omni-antenna. Meantime, it is suitable to equalize the cross-QAM (e.g. 8-QAM). In addition, the new algorithm needs not the assumption of modulation scheme is known as a priori. Its convergence rate is fast and update rule is simple.