Adaptive priority-based downlink scheduling for WiMAX networks

Shih Jung Wu, Shih Yi Huang, Kuo Feng Huang

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


Supporting quality of service (QoS) guarantees for diverse multimedia services are the primary concerns for WiMAX (IEEE 802.16) networks. A scheduling scheme that satisfies QoS requirements has become more important for wireless communications. We propose a downlink scheduling scheme called adaptive priority-based downlink scheduling (APDS) for providing QoS guarantees in IEEE 802.16 networks. APDS comprises two major components: Priority assignment and resource allocation. Different service-type connections primarily depend on their QoS requirements to adjust priority assignments and dispatch bandwidth resources dynamically. We consider both starvation avoidance and resource management. Simulation results show that our APDS methodology outperforms the representative scheduling approaches in QoS satisfaction and maintains fairness in starvation prevention.

Original languageEnglish
Pages (from-to)692-702
Number of pages11
JournalJournal of Communications and Networks
Issue number6
Publication statusPublished - Dec 2012
Externally publishedYes


  • IEEE 802.16
  • Quality of service (QoS)
  • Resource management
  • WiMAX

ASJC Scopus subject areas

  • Information Systems
  • Computer Networks and Communications


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