WORST-CASE ANALYSIS FOR MULTIPLEXED TRAFFIC ENFORCED BY ENHANCED LEAKY BUCKET WITH CDV TOLERANCE

In ATM networks, a usage parameter control (UPC) strategy must regulat e incoming traffic according to the characteristics of the sources dec lared at call set-up. Among various UPC schemes, Leaky Bucket is a con ventionally method having been discussed extensively. This paper exami nes the characteristics of the multiplexer with a sufficient buffer in which cell arrivals are policed by Enhanced Leaky-Bucket (ELB) before entering the system. In addition to the factor of mean rate, peak rat e and cell delay variation (CDV) are also considered for each ELB. We find out the worst output pattern from the ELB and derive the upper bo und on average waiting time as a function of the ELB parameters.