An image processing based method for stress classification in digital telecommunication networks

The paper faces the problem of the automatic classification of the stresses affecting the quadrature amplitude modulation (QAM). This problem arises when a continuous monitoring system is needed for improving the quality of service (QoS) in communication networks based on such a modulation scheme. In particular, a method based on image processing is proposed. It automatically analyses the constellation diagram and selects the stress actually present through a template matching technique. The results of the first simulations, carried out on signals affected by different stresses and SNRs are presented and discussed. Some experimental results are also shown.