M**A 发帖数: 78 | 1 各位朋友,
请教如下概率题, 不胜感谢.
There are W wavelengths. Each wavelength is divided into T timeslots. The
probability that a time slot is not free is p. A route has H hops.
What is the probability that no wavelength has at least k timeslots free along
the route?
背景知识:
数据包从"源点"出发, 路经H个"hops", 才抵达"终点". 每个"hop"有 W 个 wavelengths, 每
个wavelength 有 T 个 timeslots. 每个数据包路经"hop"的时候只占有一个wavelength的一
个timeslot. |
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