Figure 6

Probability of avoiding collisions according to the cardinality of the collision set. If$p\le \frac{1}{16}$, the probability of avoiding collisions constantly increases as n grows. Instead, if$p\ge \frac{1}{8}$, it is highly probable that a collision is generated by a set composed of 3 or 4 readers. If n > 13, the probability of avoiding collisions is always 1, independently of the value of p is because no collision sets with cardinality higher than 13 exist.