On Fast Optimal STDMA Scheduling Over Fading Wireless Channels

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Executive Summary

Most prior studies on wireless Spatial-reuse TDMA (STDMA) link scheduling for throughput optimization deal with the situation where instantaneous Channel State Information (CSI) is available. Under fast fading, however, the channel may change too quickly for the scheduler to track the instantaneous CSI. In this paper, instead of the instantaneous CSI, the scheduler performs its task according to the stochastic behavior of the channel state. A basic schedule consists of a set of simultaneously transmitting links. The essence of the scheduling problem is to determine a mixed schedule consisting of a weighted sum (TDMA mixture) of a number of basic schedules to optimize a certain utility objective.

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