An ATM access network for multimedia communications

Abstract

In an ATM Customer Premises Network, there is ahantage in having shared access across the one Broadband User Network Interface (UNI). In this paper, we consider ATM shared access issues based on the GFC protocols as network support for multimedia communications, and we propose a mechanism for shared-medium access to an ATWB-ISDN network to support multimedia traffic. The access scheme proposed is based on direct access to a slotted medium on ring network. By installing insertion buffers at each station reduces media access time, and using spatial reuse by destination release procedure increases the throughput. The proposed Reset-Window with Buffer Insertion Protocol (RBI) includes multiple prioritized access to be able to transport multimedia communications. This access protocol is described and its performance is analyzed. The mean cell access delay and the fair sharing of the non-guaranteed bandwidth are evaluated by a simulation.

Shared-medium architecture for ATM local network

“…This section describes a new access mechanism, also named as the former one [12], Reset-window with Buffer Insertion Protocol. Here, RBI protocol improves both the resetting mechanism and priority control.…”