Methods and Means of Ensuring the Noise Immunity of Transmission in Telecommunication Networks

Abstract

In the article the analysis of methods and means of ensuring the noise immunity transmission in telecommunication networks that use technologies in real time to ensure quality, valid and reliable data transmission under conditions of interference. For telecommunication networks the problem of optimal quality reception of information is to use the properties of the useful signal, interference, and transmission channel to increase the probability of correct reception. To increase the probability of correct reception needs to be pre-processed received signal that increases the signal interference. Transmission channels that use technologies that allow real-time to ensure quality, valid and reliable data transmission under conditions of interference provide better instruction indicators reliable transmission of information is carried out through the use of the necessary coding. During transmission on such channels, there are many difficulties associated with the impact of natural, industrial, intentional and unintentional interference. All methods of a noise stability in General lead to temporal and hardware redundancy as part of the source of information and of the addressee. Examine noise immunity of TCN as ability of the system to counteract to the hindrances, then it is necessary to know, what to counteract and on what to counteract, for a fight against hindrances a priori information is needed about properties of transmitter of information and about hindrances. Knowing all these properties of the signal and noise, it is possible to establish certain differences between them and use them to develop ways, means and methods to provide noise immunity. The aim of this article is realization of analysis of methods and backer-ups of interference immunity information transfer in TCNS, which will allow real-time to guarantee the quality, reliable and reliable transmission of the hindrances given in the conditions of influence. Unlike distortions hindrances carry casual character. They in are good time unknown and that is why cannot be fully removed. Knowledge of methods and facilities of construction of modern channels of transmission TCN in the conditions of action of hindrances, will allow building the reliable channels of information transfer for such networks.