Intelligent System of Telecommunication Service Quality Assessment
Keywords:
IP Telephony, Communication Quality, Fuzzy Set, Neural Network, Fuzzy ImplicationAbstract
Purpose: At the present stage of telecommunication technology development, improving the quality of telecom services is the most
nagging problem. Telecom services are constantly improved by higher speed of data transmission, greater mobility of users, wider range of services, better utilization of radio frequency spectrum and more intellectual network equipment and subscriber gadgets. However, this improvement takes place at the junction of objective contradictions between the ever-growing consumer demand for subscriptionservices and the limited number of frequencies. In turn, this leads to a considerably wider range of services provided by communication operators, higher consumer demand for their quality and, as a result, better control technologies. The main goal of this work is developing an intelligent assessment system for telecommunication service quality on the base of fuzzy inference system implemented in the neural network logical basis. Methods: To implement the main features and functions of the system, a multilayer feedforward neural network is used. Results: For telecommunication service quality assessment, a fuzzy logic system has been developed in the neural network logical basis. Due to its structural and parametric learning ability, it can control the communications network via the subjective consolidated customer satisfaction with the telecom service level. The structure of the proposed system is formed on the base of the available training examples, by means of the neural learning technology, as applied to the adaptation of fuzzy logic (implicative) rules and to finding the optimal input/output membership functions. Practical relevance: The developed telecommunication service quality assessment system can adapt to new demands on quality from its customers, by promptly correcting the network performance parameters. This feature allows the system to relatively quickly diversify its functions, covering other types of telecommunication services.