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In this work, we address the delay optimal scheduling problem for wirelesstransmission with fixed modulation over multi-state fading channels. We proposea stochastic scheduling policy which schedules the source to transmit withprobability jointly based on the buffer and channel states, with an averagepower constraint at the transmitter. Our objective is to minimize the averagequeueing delay by choosing the optimal transmission probabilities. Using Markovchain modeling, we formulate a power-constrained delay minimization problem,and then transform it into a Linear Programming (LP) one. By analyzing itsproperty, we can derive the optimal threshold-based scheduling policy togetherwith the corresponding transmission probabilities. Our theoretical analysis iscorroborated by simulation results.

Joint Channel and Queue Aware Scheduling for Wireless Links with Multiple Fading States