PACKET RESERVATIONS IN REAL-TIME MULTIPATH TRANSMISSIONS

Subject of Research. The paper presents research of mechanisms of multipath redundant transmissions in computer networks. Method. The developed application level protocol gives the possibility to increase the probability of timely and faultless data delivery in computer networks which work within the conditions of delivery time limits using multipath redundant transmissions of packet copies via different channels. Main Results. The protocol with redundant multipath transmissions opportunity based on UDP transport protocol is developed. The efficiency analysis of the presented solutions is carried out on the basis of simulation modeling in OMNeT++ environment. Models of the proposed protocol and computer network with redundant transmissions opportunity are developed. Experiments with these models are carried out and efficiency area of the developed protocol application is determined. The multiplicative criterion that shows time reserve of timely and faultless transmitted packets is used as an efficiency indicator. The presented protocol shows efficiency in various working cases with the intensity and redundancy coefficient change of packet arrival. Practical Relevance. The developed algorithms and mechanisms can be used for program implementation of protocol with redundant multipath transmissions aimed at its application in cyberphysic real-time systems.