Title: Simple approach for joint blind equalization and order detection suitable for QAM signal
Abstract: A blind equalization and order detection algorithm suitable for QAM signal is proposed. By exploiting the inherent structural relationship between the 4-QAM signal's coordinates and other higher-order QAM signals' coordinates, a novel cost function including channel blind equalization and signal order detection is defined. In such method, by changing the coordinates of input signals, higher-order QAM signal can be equalized by the statistics of 4-QAM and its order can be detected accurately. Examples of five modulation types - 4-QAM, 8-QAM, 16-QAM, 32-QAM and 64-QAM - are given. Simulation results show that the proposed algorithm achieves satisfactory performance.
Publication Year: 2009
Publication Date: 2009-05-01
Language: en
Type: article
Indexed In: ['crossref']
Access and Citation
Cited By Count: 9
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