PERFORMANCE ANALYSIS OF A LEAKY-BUCKET CONTROLLED ATM MULTIPLEXER

There are at least three levels where network access control should be exercised: the call level, the burst level and the cell level. These control levels have different time scales. The present paper is concerned primarily with the burst and cell level control. Our system consists of a number of input sources, each controlled by a leaky-bucket mechanism. The outputs from the leaky-buckets are fed to a statistical multiplexer. The cell level loss occurs at the individual leaky-buckets and the burst level loss occurs at the statistical multiplexer. We use a unified state space representation for the leaky-buckets-multiplexer system and a spectral expansion method to analyze the cell level and the burst level behaviors. Numerical results obtained offer insight into the allocation and management of the buffers to attain the best performance tradeoffs.