  In this paper a scheduling policy is presented which minimizes the average
delay of the users. The scheduling scheme is investigated both by analysis and
simulations carried out in the context of Orthogonal Frequency Division
Multiplexing (OFDM) broadcast channels (BC). First the delay optimality is
obtained for a static scenario providing solutions for specific subproblems,
then the analysis is carried over to the dynamic scheme. Furthermore auxiliary
tools are given for proving throughput optimality. Finally simulations show the
superior performance of the presented scheme.
