engleski

Optimal Delay Buffer for VoIP Applications

The dominant problems in ATM networks are network control and network resource allocation. An efficient resource allocation to each traffic source is an extremely complex task. Network must be managed in real-time in order to avoid congestion. Network congestion requires admission control that in turn requires traffic measurements. In this paper we propose two methods, one for the link capacity allocation, an the other for the estimation of a cell loss rate in an ATM switch that is based on the convolution of probability density functions of rate signals at the switch’s input. Both methods are simple and can be easily implemented in a DSP in an ATM node. They also point to a possible application of discrete Fourier transform (DFT) to link capacity allocation and buffer design in high-speed networks.

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