A Classification Demodulation Algorithm of Joint Unitary Space-Time Constellations
Han Dong-shen · Dianzi xuebao · 2015
In the paper,we propose a newdesign of unitary space-time constellations which is generated based on a combination of permutation method and rotation method. This method can provide better performance for the unitary spacetime constellation signal. At the same time,for this joint constellation,a newclassification demodulation algorithm is given.This algorithm can recognize the class of transmission signal with very lowerror probability and reduce the research range under the maximum-likelihood algorithm,so both the error performance and the complexity of constellations can be improved. Theoretical analysis and simulation results all showthat the performances of proposed constellations are better than some other constellations which are designed by only one method while the complexity of demodulation is reduced greatly.