THE METHOD OF OPTIMAL SYNTHESIS OF THE BROADBAND SUBSCRIBER ACCESS NETWORK

Abstract

The proposed method is actualized for the optimal synthesis of a subscriber access network during its reconstruction in order to ensure broadband availability and accessibility to new services that require high transmission rates. The task of reconstructing the subscriber access network using FTTC technology and the equipment of “active cabinets” has been set up and formalized in terms theory of graph. The method for solving the problem is proposed, which ensures the determination of the optimal number of active cabinets in and the achievement of a minimum of the total length of cable routes. The method had been tested in the framework of the all-Ukrainian project of Ukrtelecom and involves the dismantling of classic automatic telephone system (PBX/DPBX) and the organization of a network infrastructure using so-called “active cabinets” based on FTTC (Fiber-to-the-Curb) technology. From the cabinet to the subscribers copper cables can be used, and fiber-optic lines using any modern access technology (ADSL, VDSL, FTTB, FTTH, PON). As a result, the subscriber receives not only high speeds, but also access to new services (digital telephony, interactive TV, “cloud” solutions etc).