Figure 1From: The random access NUM with multiclass trafficUtility functions. U 1 (x)= ln ( x + 1 ) ln ( 25 ) , U 2 (x)= x x + 1 , U 3 (x)= x 4 x 4 + 400 , U 4 (x)= x 6 x 6 + 1 0 6 , U 5 (x)= x 24 , U 6 (x)= x 2 2 4 2 . (U1, U5, and U6 are normalized at x max =24 Mbps.Back to article page