100 people are sitting in an airplane, 20 in business class, 80 in economy/coach class. You are asked to briefly sketch the design of a MAC protocol for Wireless LAN technology with a single Access Point in the plane that satisfies two requirements:

a) The people in business class must have a higher priority to the medium than those in economy class.

b) Within a class, the protocol must try to be fair, and must maximize throughput.