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Instruments and Systems: Monitoring, Control, and Diagnostics

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Increase efficiency of subscriber access networks based on local networks technology
GEZALOV E.B.

In the article the subscriber access network of NGN and options of access technologies on the type of used medium are considered.
The analysis of the access technologies used in subscriber access networks given, and shows that the most perspective and relatively
inexpensive technology is based on local area networks. It is proposed combined access protocol for local system of subscriber access
of access network, providing broadband access of subscribers to NGN and ensuring the effective transmission of heterogeneous traffic
(speech, video and data). A model of a local system of subscriber access based on combined access protocol local network in discrete
time given and the average delay time of speech frame, video frame and data frame is determined. The comparative analysis of the
average delay time of heterogeneous traffic in the local system of access for combined access protocol and standard access protocols
is done. It is shown that the proposed combined access protocol compared with standard protocols efficient in a wide range of traffic
changes and has adaptive properties.
Keywords: NGN, subscriber access network, local network, access protocol, buffer, heterogeneous traffic, packet, time window,
service interval.

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Pp. 01-07.

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