Goodput estimation for an access node buffer carrying correlated video traffic

We present an algorithm to estimate analytically the frame goodput of a correlated MPEG-2 video source that traverses a first network node´s buffer; where frame goodput is defined as the ratio of the number of cells in completely and correctly transmitted frames through the buffer to the total number of cells arriving at the buffer. The effect on the frame goodput of changing the output-to-input line speeds is also investigated. By using this algorithm, a buffer that is three times the maximum frame size is seen to yield loss probability of 10^-6 at a normalized output line rate of 0.28 for a load of 20%. A maximum simulation error margin of ±30% for values of the order of 10^-5 with a 98% confidence was achieved.