SIMULATION OF THE CLOCK SYNCHRONIZATION ALGORITHM FOR TRANSMISSION SYSTEMS WITH xDSL TECHNOLOGY

Abstract

The article presents the simulation results of the clock synchronization system (CSS) operation algorithm for transmission systems (TS) using orthogonal harmonic signals (OHS) using xDSL technology on the example of ADSL2 + system operating over a telephone cable of the TPP-0.5 type. An analytical model of clock synchronization system based on the estimation of interference in dedicated channels of TS in the shifted intervals of a group signal processing is proposed. The algorithm of the CSS operation allows to determine the optimal position of the clock synchronization, the direction of the integration boundaries shift during the adjustment process. The simulation of its operation over various communication lines has been carried out, and adjustment characteristics have been constructed. The principal operability of the adjustment algorithm of CSS for TS with OHS at operation over domestic telephone lines is demonstrated.