On Improving Utilization in ALOHA Networks

Abstract

By the simple expedient of dividing users into two groups-one transmitting at high power and the other at low powerthe maximum utilization of a slotted ALOHA communication system can be increased from 36.8 percent to about 53 percent. Similar comments apply to the unslotted ALOHA case. An extension to more than two power groups also is described.