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Packet Scheduling with QoS and Fairness for Downlink Traffic in WiMAX Networks

  • Nie, Wei (School of Automation Engineering, University of Electronic Science and Technology of China) ;
  • Wang, Houjun (School of Automation Engineering, University of Electronic Science and Technology of China) ;
  • Park, Jong-Hyuk (Department of Computer Science and Engineering, Seoul National University of Science and Technology)
  • Received : 2010.10.01
  • Accepted : 2011.01.07
  • Published : 2011.06.30

Abstract

The IEEE 802.16 standard is supposed to provide a wide-range broadband wireless service, but it leaves the implementation of the wireless resource scheduler as an open issue. We have studied the scheduling problem and propose a two level scheduling (TLS) scheme with support for quality of service and fairness guarantees for downlink traffic in a WiMAX network. A central controller Base Station has a number of users, and each mobile subscriber station has different channel conditions. The same mobile subscriber station may have different service requirements at different times in the WiMAX network. Based on OPNET simulation, the results show our scheduling algorithm can increase the network throughput, maintain relative fairness, and lower delay over the round robin and weighted round robin algorithms.

Keywords

References

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Cited by

  1. Downlink performance analysis for broadband wireless systems with multiple packet sizes vol.70, pp.5, 2013, https://doi.org/10.1016/j.peva.2013.01.003