OFDM downlink scheduling for delay-optimality: Many-channel many-source asymptotics with general arrival processes

  title={OFDM downlink scheduling for delay-optimality: Many-channel many-source asymptotics with general arrival processes},
  author={Manu Sharma and Xiaojun Lin},
  journal={2011 Information Theory and Applications Workshop},
We consider the downlink of an OFDM system for supporting a large number of delay-sensitive users. The OFDM scheduling problem can be modeled as a discrete-time multi-source multi-server queuing system with time-varying connectivity. For such a system, the Max-Weight policy is known to be throughput-optimal and the Server-Side Greedy (SSG) policy has been recently shown to achieve small queue lengths for i.i.d. arrival processes. However, there is often significant difference between queue… CONTINUE READING
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